chore: workflow: handle manual bootstrap

scripts used by the cron vuln-watch workflow
from the master branch.

.gitignore

@@ -0,0 +1,4 @@
+__pycache__/
+*.py[cod]
+*.egg-info/
+.venv/

LICENSE

@@ -1,674 +0,0 @@
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-  16. Limitation of Liability.
-
-  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
-THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
-GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
-USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
-DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
-PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
-EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGES.
-
-  17. Interpretation of Sections 15 and 16.
-
-  If the disclaimer of warranty and limitation of liability provided
-above cannot be given local legal effect according to their terms,
-reviewing courts shall apply local law that most closely approximates
-an absolute waiver of all civil liability in connection with the
-Program, unless a warranty or assumption of liability accompanies a
-copy of the Program in return for a fee.
-
-                     END OF TERMS AND CONDITIONS
-
-            How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-  If the program does terminal interaction, make it output a short
-notice like this when it starts in an interactive mode:
-
-    <program>  Copyright (C) <year>  <name of author>
-    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, your program's commands
-might be different; for a GUI interface, you would use an "about box".
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
-<http://www.gnu.org/licenses/>.
-
-  The GNU General Public License does not permit incorporating your program
-into proprietary programs.  If your program is a subroutine library, you
-may consider it more useful to permit linking proprietary applications with
-the library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.  But first, please read
-<http://www.gnu.org/philosophy/why-not-lgpl.html>.

README.md

@@ -1,34 +0,0 @@
-Spectre & Meltdown Checker
-==========================
-
-A simple shell script to tell if your Linux installation is vulnerable against the 3 "speculative execution" CVEs.
-
-Without options, it'll inspect you currently running kernel. 
-You can also specify a kernel image on the command line, if you'd like to inspect a kernel you're not running.
-
-The script will do its best to detect mitigations, including backported non-vanilla patches, regardless of the advertised kernel version number.
-
-## Example of script output
-
-![checker](https://framapic.org/FjroIZximyoM/EO5msoSMKb6L.png)
-
-## Quick summary of the CVEs
-
-**CVE-2017-5753** bounds check bypass (Spectre Variant 1)
-
-   - Impact: Kernel & all software
-   - Mitigation: recompile software *and* kernel with a modified compiler that introduces the LFENCE opcode at the proper positions in the resulting code
-   - Performance impact of the mitigation: negligible
-
-**CVE-2017-5715** branch target injection (Spectre Variant 2)
-
-   - Impact: Kernel
-   - Mitigation 1: new opcode via microcode update that should be used by up to date compilers to protect the BTB (by flushing indirect branch predictors)
-   - Mitigation 2: introducing "retpoline" into compilers, and recompile software/OS with it
-   - Performance impact of the mitigation: high for mitigation 1, medium for mitigation 2, depending on your CPU
-
-**CVE-2017-5754** rogue data cache load (Meltdown)
-
-   - Impact: Kernel
-   - Mitigation: updated kernel (with PTI/KPTI patches), updating the kernel is enough
-   - Performance impact of the mitigation: low to medium

scripts/daily_vuln_watch_prompt.md

@@ -0,0 +1,266 @@
+# Daily transient-execution vulnerability scan — classification step
+
+You are a scheduled agent running inside a GitHub Actions job. A preceding
+workflow step has already fetched all configured sources, applied HTTP
+conditional caching, deduped against prior state, and written the pre-filtered
+list of new items to `new_items.json`. Your only job is to classify each item.
+
+## Scope — read the authoritative docs before classifying
+
+The project's own docs define what belongs in this tool. **Read them early
+in the run** (once per run; Claude caches, these don't change daily):
+
+1. **`./checker/DEVELOPMENT.md`** — "Project Mission" section. What the
+   script does, what it explicitly does not do, its platform scope
+   (Linux + BSD on x86/amd64/ARM/ARM64).
+2. **`./checker/dist/doc/FAQ.md`** — the section titled
+   _"Which rules are governing the support of a CVE in this tool?"_.
+   This is the **operative test**:
+   > A CVE belongs in scope when mitigating it requires **kernel
+   > modifications, microcode modifications, or both** — and those
+   > modifications are **detectable** by this tool (no hardcoded kernel
+   > versions; look for actual mechanisms).
+3. **`./checker/dist/doc/UNSUPPORTED_CVE_LIST.md`** — explicit list of
+   CVEs ruled out, grouped by reason:
+   - _Already covered by a parent CVE check_ (e.g. SpectreRSB ⊂ Spectre V2).
+   - _No detectable kernel/microcode mitigation_ (vendor won't fix, GPU
+     driver-only, userspace-only, etc.).
+   - _Not a transient / speculative execution vulnerability at all_.
+
+Match incoming items against those exclusion patterns. If a CVE is a
+subvariant of a covered parent, or has no kernel/microcode mitigation
+this tool can detect, or is simply not a transient-execution issue, it
+is **unrelated** — not `tocheck`. Out-of-scope items with zero ambiguity
+should not linger in the `tocheck` backlog.
+
+In-scope shortlist (for quick reference; the README's CVE table is the
+authoritative source): Spectre v1/v2/v4, Meltdown, Foreshadow/L1TF,
+MDS (ZombieLoad/RIDL/Fallout), TAA, SRBDS, iTLB Multihit, MMIO Stale
+Data, Retbleed, Zenbleed, Downfall (GDS), Inception/SRSO, DIV0, Reptar,
+RFDS, ITS, TSA-SQ/TSA-L1, VMScape, BPI, FP-DSS — and similar
+microarchitectural side-channel / speculative-execution issues on
+Intel / AMD / ARM CPUs with a detectable mitigation.
+
+Explicitly out of scope: generic software CVEs, GPU driver bugs,
+networking stacks, filesystem bugs, userspace crypto issues, unrelated
+kernel subsystems, CPU bugs that the industry has decided not to mitigate
+(nothing for the tool to check), and CVEs fixed by userspace/SDK updates
+only.
+
+## Inputs
+
+- `new_items.json` — shape:
+
+  ```json
+  {
+    "scan_date": "2026-04-18T14:24:43+00:00",
+    "window_cutoff": "2026-04-17T13:24:43+00:00",
+    "per_source": { "phoronix": {"status": 200, "new": 2, "total_in_feed": 75} },
+    "items": [
+      {
+        "source": "phoronix",
+        "stable_id": "CVE-2026-1234",
+        "title": "...",
+        "permalink": "https://...",
+        "guid": "...",
+        "published_at": "2026-04-18T05:00:00+00:00",
+        "extracted_cves": ["CVE-2026-1234"],
+        "vendor_ids": [],
+        "snippet": "first 400 chars of description, tags stripped"
+      }
+    ],
+    "reconsider": [
+      {
+        "canonical_id":   "INTEL-SA-00145",
+        "current_bucket": "toimplement",
+        "title":          "Lazy FP State Restore",
+        "sources":        ["intel-psirt"],
+        "urls":           ["https://www.intel.com/.../intel-sa-00145.html"],
+        "extracted_cves": [],
+        "first_seen":     "2026-04-19T09:41:44+00:00"
+      }
+    ]
+  }
+  ```
+
+  - `items` are fresh observations from today's fetch: already inside the
+    time window and not yet present in state under any alt-ID.
+  - `reconsider` holds existing `toimplement`/`tocheck` entries from state,
+    submitted for re-review each run (see the "Reconsideration" section
+    below). On days where both arrays are empty, write stub output files
+    with `(no new items in this window)`.
+
+- `./checker/` is a checkout of the **`test`** branch of this repo (the
+  development branch where coded-but-unreleased CVE checks live). This is
+  the source of truth for whether a CVE is already covered. Grep this
+  directory — not the working directory root, which only holds the
+  vuln-watch scripts and has no checker code.
+
+## Classification rules
+
+For each item in `items`, pick exactly one bucket:
+
+- **toimplement** — clearly in-scope per the FAQ test (kernel/microcode
+  mitigation exists AND is detectable by this tool), and **not already
+  covered** by `./checker/`. Verify the second half: grep `./checker/`
+  for each `extracted_cves` entry *and* for any codename in the title
+  (e.g., "FP-DSS", "Inception"). If either matches, the right bucket is
+  `unrelated` (already covered) or `tocheck` (maintainer should confirm
+  whether an existing check handles the new variant).
+- **tocheck** — there is a **specific question a maintainer must answer**
+  before this can be filed anywhere else. Examples:
+  - Ambiguity about whether an existing check (e.g. parent Spectre V2)
+    transitively covers this new sub-variant, or whether a fresh entry
+    is warranted.
+  - Embedded-only ARM SKU and it's unclear if the tool's ARM support
+    reaches that class of SKU.
+  - Vendor advisory published without a CVE ID yet, but the vuln looks
+    in-scope; revisit once the CVE is assigned.
+  - Contradictory statements across sources about whether a mitigation
+    is detectable (kernel-patch vs. userspace-only vs. microcode).
+
+  **Do NOT use `tocheck` as a catch-all** for "I'm not sure". Most items
+  have a clear answer once you consult UNSUPPORTED_CVE_LIST.md and the
+  FAQ rule. If you can articulate the specific question a maintainer
+  needs to answer — `tocheck`. If the only reason is "maybe?" — it's
+  `unrelated`.
+
+- **unrelated** — everything else. Including:
+  - Matches a pattern in UNSUPPORTED_CVE_LIST.md (subvariant of covered
+    parent, no detectable mitigation, not transient-execution).
+  - Fails the FAQ rule (userspace-only fix, driver update, industry
+    decided not to mitigate).
+  - Non-CPU security topic (kernel filesystem bug, network stack, crypto
+    library, GPU driver, compiler flag change, distro release notes).
+
+**Tie-breakers** (note the direction — this used to bias the other way):
+- Prefer `unrelated` over `tocheck` when the item matches a category in
+  UNSUPPORTED_CVE_LIST.md or plainly fails the FAQ rule. Growing the
+  `tocheck` backlog with obvious-unrelateds wastes human time more than
+  a confident `unrelated` does.
+- Prefer `tocheck` over `toimplement` when the CVE is still "reserved" /
+  "pending" — false positives in `toimplement` create phantom work.
+
+`WebFetch` is available for resolving genuine `tocheck` ambiguity.
+Budget: **3 follow-ups per run total**. Do not use it for items you
+already plan to file as `unrelated` or `toimplement`.
+
+## Reconsideration rules (for `reconsider` entries)
+
+Each `reconsider` entry is an item *already* in state under `current_bucket`
+= `toimplement` or `tocheck`, from a prior run. Re-examine it against the
+**current** `./checker/` tree and the scope docs above. This pass is the
+right place to prune the `tocheck` backlog: prior runs (before these
+scope docs were wired in) may have hedged on items that now have a clear
+`unrelated` answer — demote them aggressively. You may:
+
+- **Demote** `toimplement` → `tocheck` or `unrelated` if the checker now
+  covers the CVE/codename (grep confirms), or if reinterpreting the
+  advisory shows it's out of scope.
+- **Demote** `tocheck` → `unrelated` if new context settles the ambiguity
+  as out-of-scope.
+- **Promote** `tocheck` → `toimplement` if you now have firm evidence it's
+  a real, in-scope, not-yet-covered CVE.
+- **Leave it unchanged** (same bucket) — emit a record anyway; it's cheap
+  and documents that the reconsideration happened today.
+- **Reassign the canonical ID** — if a CVE has since been assigned to a
+  vendor advisory (e.g., an INTEL-SA that previously had no CVE), put the
+  CVE in `extracted_cves` and use it as the new `canonical_id`. The merge
+  step will rekey the record under the CVE and keep the old ID as an alias.
+
+For every reconsider record you emit, set `"reconsider": true` in its
+classification entry — this tells the merge step to **overwrite** the
+stored bucket (including demotions), not just promote.
+
+## Outputs
+
+Compute `TODAY` = the `YYYY-MM-DD` prefix of `scan_date`. Write three files at
+the repo root, overwriting if present:
+
+- `watch_${TODAY}_toimplement.md`
+- `watch_${TODAY}_tocheck.md`
+- `watch_${TODAY}_unrelated.md`
+
+These delta files cover the **`items`** array only — they answer "what
+did today's fetch surface". Reconsider decisions update state (and surface
+in the `current_*.md` snapshots the merge step rewrites); don't duplicate
+them here.
+
+Each file uses level-2 headers per source short-name, then one bullet per
+item: the stable ID, the permalink, and 1–2 sentences of context.
+
+```markdown
+## oss-sec
+- **CVE-2026-1234** — https://www.openwall.com/lists/oss-security/2026/04/18/3
+  New Intel transient-execution bug "Foo"; affects Redwood Cove cores.
+  Not yet covered (grepped CVE-2026-1234 and "Foo" — no matches).
+```
+
+If a bucket has no items, write `(no new items in this window)`.
+
+Append the following block to the **tocheck** file (creating it if
+otherwise empty):
+
+```markdown
+## Run summary
+- scan_date: <value>
+- per-source counts (from per_source): ...
+- fetch failures (status != 200/304): ...
+- total classified this run: toimplement=<n>, tocheck=<n>, unrelated=<n>
+- reconsidered: <n> entries re-reviewed; <list any bucket transitions, e.g.
+  "CVE-2018-3665: toimplement -> tocheck (now covered at src/vulns/...)">,
+  or "no transitions" if every reconsider kept its existing bucket.
+```
+
+## `classifications.json` — required side-channel for the merge step
+
+Also write `classifications.json` at the repo root. It is a JSON array, one
+record per item in `new_items.json.items`:
+
+```json
+[
+  {
+    "stable_id":      "CVE-2026-1234",
+    "canonical_id":   "CVE-2026-1234",
+    "bucket":         "toimplement",
+    "extracted_cves": ["CVE-2026-1234"],
+    "sources":        ["phoronix"],
+    "urls":           ["https://www.phoronix.com/news/..."]
+  }
+]
+```
+
+Rules:
+
+- One record per input item (`items` + `reconsider`). For items, use the
+  same `stable_id` as in `new_items.json`. For reconsider entries, use the
+  entry's `canonical_id` from state as the record's `stable_id`.
+- `canonical_id`: prefer the first `extracted_cves` entry if any; otherwise
+  the item's `stable_id`. **Use the same `canonical_id` for multiple items
+  that are really the same CVE from different sources** — the merge step
+  will collapse them into one entry and add alias rows automatically.
+- **Populate `extracted_cves` / `canonical_id` from context when the feed
+  didn't.** If the title, body, or a well-known transient-execution codename
+  mapping lets you identify a CVE the feed didn't emit (e.g., "Lazy FP
+  State Restore" → `CVE-2018-3665`, "LazyFP" → same, "FP-DSS" → whatever
+  CVE AMD/Intel assigned), put the CVE in `extracted_cves` and use it as
+  `canonical_id`. This prevents Intel's CVE-less listing entries from
+  creating orphan `INTEL-SA-NNNNN` records in the backlog.
+- `sources` / `urls`: arrays; default to the item's own single source and
+  permalink if you didn't enrich further.
+- **`reconsider: true`** — set on every record that corresponds to an
+  input from the `reconsider` array. The merge step uses this flag to
+  overwrite the stored bucket instead of merging by "strongest wins" —
+  this is what enables demotions.
+- If both `items` and `reconsider` are empty, write `[]`.
+
+## Guardrails
+
+- Do NOT modify any repo source code. Only write the four output files.
+- Do NOT create commits, branches, or PRs.
+- Do NOT call tools that post externally (Slack, GitHub comments, issues, …).
+- Do NOT re-fetch the RSS/HTML sources — that was the prior step's job.
+  `WebFetch` is only for drilling into a specific advisory/article URL to
+  resolve a `tocheck` ambiguity (budget 3).
+- If total runtime exceeds 10 minutes, finish what you have, write partial
+  outputs (+ a note in the tocheck run summary), and exit cleanly.

scripts/vuln_watch/fetch_and_diff.py

@@ -0,0 +1,570 @@
+#!/usr/bin/env python3
+"""Fetch all configured sources, dedup against state/seen.json, emit new_items.json.
+
+Writes updated per-source HTTP cache metadata (etag, last_modified, hwm_*) back
+into state/seen.json. Does NOT touch state.seen / state.aliases — that is the
+merge step's job, after Claude has classified the new items.
+
+Usage:
+    SCAN_DATE=2026-04-18T14:24:43Z python -m scripts.vuln_watch.fetch_and_diff
+"""
+from __future__ import annotations
+
+import argparse
+import datetime
+import gzip
+import json
+import os
+import pathlib
+import re
+import sys
+import urllib.error
+import urllib.parse
+import urllib.request
+from typing import Any, Iterable
+
+import feedparser  # type: ignore[import-untyped]
+
+from .sources import REQUEST_TIMEOUT, SOURCES, Source, USER_AGENT
+from . import state
+
+
+CVE_RE = re.compile(r"CVE-\d{4}-\d{4,7}")
+DEFAULT_WINDOW_HOURS = 25
+DEFAULT_RECONSIDER_AGE_DAYS = 7
+MAX_ITEMS_PER_FEED = 200
+SNIPPET_MAX = 400
+NEW_ITEMS_PATH = pathlib.Path("new_items.json")
+
+
+def parse_iso(ts: str | None) -> datetime.datetime | None:
+    if not ts:
+        return None
+    try:
+        return datetime.datetime.fromisoformat(ts.replace("Z", "+00:00"))
+    except ValueError:
+        return None
+
+
+def now_from_scan_date(scan_date: str) -> datetime.datetime:
+    dt = parse_iso(scan_date)
+    if dt is None:
+        dt = datetime.datetime.now(datetime.timezone.utc)
+    return dt
+
+
+def conditional_get(
+    url: str,
+    etag: str | None,
+    last_modified: str | None,
+    user_agent: str = USER_AGENT,
+) -> tuple[int | str, bytes | None, str | None, str | None]:
+    """Perform a conditional GET.
+
+    Returns (status, body, new_etag, new_last_modified).
+
+    status is:
+      - 200 with body on success
+      - 304 with body=None when unchanged
+      - an int HTTP error code on server-side errors
+      - a string describing a network/transport failure
+    """
+    req = urllib.request.Request(url, headers={
+        "User-Agent": user_agent,
+        # AMD's CDN stalls on non-gzip clients; asking for gzip speeds up
+        # every source and is strictly beneficial (we decompress locally).
+        "Accept-Encoding": "gzip",
+    })
+    if etag:
+        req.add_header("If-None-Match", etag)
+    if last_modified:
+        req.add_header("If-Modified-Since", last_modified)
+    try:
+        with urllib.request.urlopen(req, timeout=REQUEST_TIMEOUT) as resp:
+            body = resp.read()
+            if resp.headers.get("Content-Encoding", "").lower() == "gzip":
+                try:
+                    body = gzip.decompress(body)
+                except OSError:
+                    pass  # server lied about encoding; use as-is
+            return (
+                resp.status,
+                body,
+                resp.headers.get("ETag"),
+                resp.headers.get("Last-Modified"),
+            )
+    except urllib.error.HTTPError as e:
+        if e.code == 304:
+            return (304, None, etag, last_modified)
+        return (e.code, None, etag, last_modified)
+    except (urllib.error.URLError, TimeoutError, OSError) as e:
+        return (f"network:{type(e).__name__}", None, etag, last_modified)
+
+
+def extract_cves(text: str) -> list[str]:
+    seen: set[str] = set()
+    out: list[str] = []
+    for m in CVE_RE.findall(text or ""):
+        if m not in seen:
+            seen.add(m)
+            out.append(m)
+    return out
+
+
+def extract_vendor_ids(text: str, patterns: Iterable[str]) -> list[str]:
+    seen: set[str] = set()
+    out: list[str] = []
+    for p in patterns:
+        for m in re.findall(p, text or ""):
+            if m not in seen:
+                seen.add(m)
+                out.append(m)
+    return out
+
+
+def pick_stable_id(vendor_ids: list[str], cves: list[str], guid: str, link: str) -> str:
+    """Pick canonical-ish stable ID: vendor advisory → CVE → guid → permalink.
+
+    CVE is preferred over guid/URL so that the same CVE seen via different
+    feeds collapses on its stable_id alone (in addition to the alias map).
+    """
+    if vendor_ids:
+        return vendor_ids[0]
+    if cves:
+        return cves[0]
+    if guid:
+        return guid
+    return link
+
+
+def clean_snippet(s: str) -> str:
+    s = re.sub(r"<[^>]+>", " ", s or "")
+    s = re.sub(r"\s+", " ", s)
+    return s.strip()
+
+
+def _struct_time_to_iso(st: Any) -> str | None:
+    if not st:
+        return None
+    try:
+        return datetime.datetime(*st[:6], tzinfo=datetime.timezone.utc).isoformat()
+    except (TypeError, ValueError):
+        return None
+
+
+def parse_feed_body(src: Source, body: bytes) -> list[dict[str, Any]]:
+    parsed = feedparser.parse(body)
+    items: list[dict[str, Any]] = []
+    for entry in parsed.entries[:MAX_ITEMS_PER_FEED]:
+        link = (entry.get("link") or "").strip()
+        guid = (entry.get("id") or entry.get("guid") or "").strip()
+        title = (entry.get("title") or "").strip()
+        summary = entry.get("summary") or ""
+        published_at = (
+            _struct_time_to_iso(entry.get("published_parsed"))
+            or _struct_time_to_iso(entry.get("updated_parsed"))
+        )
+        blob = f"{title}\n{summary}"
+        cves = extract_cves(blob)
+        vendor_ids = extract_vendor_ids(blob, src.advisory_id_patterns)
+        stable_id = pick_stable_id(vendor_ids, cves, guid, link)
+        items.append({
+            "source": src.name,
+            "stable_id": stable_id,
+            "title": title,
+            "permalink": link,
+            "guid": guid,
+            "published_at": published_at,
+            "extracted_cves": cves,
+            "vendor_ids": vendor_ids,
+            "snippet": clean_snippet(summary)[:SNIPPET_MAX],
+        })
+    return items
+
+
+def _parse_intel_psirt(src: Source, text: str) -> list[dict[str, Any]]:
+    """Intel's security-center page uses a table of <tr class="data"> rows:
+
+        <tr class="data" ...>
+          <td ...><a href="/.../intel-sa-NNNNN.html">Title</a></td>
+          <td>INTEL-SA-NNNNN</td>
+          <td>March 10, 2026</td>    <- Last updated
+          <td>March 10, 2026</td>    <- First published
+        </tr>
+
+    We pick the later of the two dates as `published_at` (most recent
+    activity) so updates to older advisories also show up in the window.
+    """
+    items: list[dict[str, Any]] = []
+    seen_ids: set[str] = set()
+    permalink_base = src.display_url or src.url
+    for m in re.finditer(r'<tr class="data"[^>]*>(.*?)</tr>', text, re.DOTALL):
+        row = m.group(1)
+        sid = re.search(r'INTEL-SA-\d+', row)
+        if not sid:
+            continue
+        advisory_id = sid.group(0)
+        if advisory_id in seen_ids:
+            continue
+        seen_ids.add(advisory_id)
+        link_m = re.search(r'href="([^"#]+)"', row)
+        permalink = urllib.parse.urljoin(permalink_base, link_m.group(1)) if link_m else permalink_base
+        title_m = re.search(r'<a[^>]*>([^<]+)</a>', row)
+        title = title_m.group(1).strip() if title_m else advisory_id
+        published_at: str | None = None
+        for ds in re.findall(r'<td[^>]*>\s*([A-Z][a-z]+ \d{1,2}, \d{4})\s*</td>', row):
+            try:
+                dt = datetime.datetime.strptime(ds, "%B %d, %Y").replace(tzinfo=datetime.timezone.utc)
+                iso = dt.isoformat()
+                if published_at is None or iso > published_at:
+                    published_at = iso
+            except ValueError:
+                continue
+        items.append({
+            "source": src.name,
+            "stable_id": advisory_id,
+            "title": title,
+            "permalink": permalink,
+            "guid": "",
+            "published_at": published_at,
+            "extracted_cves": extract_cves(row),
+            "vendor_ids": [advisory_id],
+            "snippet": clean_snippet(row)[:SNIPPET_MAX],
+        })
+    return items[:MAX_ITEMS_PER_FEED]
+
+
+def _parse_amd_psirt(src: Source, text: str) -> list[dict[str, Any]]:
+    """AMD's product-security page has a bulletin table where each row ends
+    with two `<td data-sort="YYYY-MM-DD HHMMSS">` cells (Published Date,
+    Last Updated Date). The machine-readable `data-sort` attribute is far
+    easier to parse than the human-readable text alongside it.
+    """
+    items: list[dict[str, Any]] = []
+    seen_ids: set[str] = set()
+    permalink_base = src.display_url or src.url
+    for m in re.finditer(r'<tr[^>]*>(.*?AMD-SB-\d+.*?)</tr>', text, re.DOTALL):
+        row = m.group(1)
+        sid = re.search(r'AMD-SB-\d+', row)
+        if not sid:
+            continue
+        advisory_id = sid.group(0)
+        if advisory_id in seen_ids:
+            continue
+        seen_ids.add(advisory_id)
+        link_m = re.search(r'href="([^"#]+)"', row)
+        permalink = urllib.parse.urljoin(permalink_base, link_m.group(1)) if link_m else permalink_base
+        title_m = re.search(r'<a[^>]*>([^<]+)</a>', row)
+        title = title_m.group(1).strip() if title_m else advisory_id
+        published_at: str | None = None
+        for (y, mo, d, h, mi, s) in re.findall(
+            r'data-sort="(\d{4})-(\d{2})-(\d{2})\s+(\d{2})(\d{2})(\d{2})"', row
+        ):
+            iso = f"{y}-{mo}-{d}T{h}:{mi}:{s}+00:00"
+            if published_at is None or iso > published_at:
+                published_at = iso
+        items.append({
+            "source": src.name,
+            "stable_id": advisory_id,
+            "title": title,
+            "permalink": permalink,
+            "guid": "",
+            "published_at": published_at,
+            "extracted_cves": extract_cves(row),
+            "vendor_ids": [advisory_id],
+            "snippet": clean_snippet(row)[:SNIPPET_MAX],
+        })
+    return items[:MAX_ITEMS_PER_FEED]
+
+
+def _parse_html_generic(src: Source, text: str) -> list[dict[str, Any]]:
+    """Fallback regex-only extractor for HTML sources with no known table
+    layout (arm-spec, transient-fail's tree.js). Emits `published_at=None`
+    — items pass the window filter as fail-safe, but state.seen dedup
+    prevents re-emission across runs."""
+    items: list[dict[str, Any]] = []
+    seen_ids: set[str] = set()
+    permalink_base = src.display_url or src.url
+    for pat in src.advisory_id_patterns:
+        for m in re.finditer(pat, text):
+            advisory_id = m.group(0)
+            if advisory_id in seen_ids:
+                continue
+            seen_ids.add(advisory_id)
+            window = text[max(0, m.start() - 400): m.end() + 400]
+            href_match = re.search(r'href="([^"#]+)"', window)
+            if href_match:
+                permalink = urllib.parse.urljoin(permalink_base, href_match.group(1))
+            else:
+                permalink = permalink_base
+            cves_in_window = extract_cves(window)
+            is_cve = advisory_id.startswith("CVE-")
+            cves = cves_in_window if not is_cve else list({advisory_id, *cves_in_window})
+            vendor_ids = [] if is_cve else [advisory_id]
+            items.append({
+                "source": src.name,
+                "stable_id": advisory_id,
+                "title": advisory_id,
+                "permalink": permalink,
+                "guid": "",
+                "published_at": None,
+                "extracted_cves": cves,
+                "vendor_ids": vendor_ids,
+                "snippet": clean_snippet(window)[:SNIPPET_MAX],
+            })
+    return items[:MAX_ITEMS_PER_FEED]
+
+
+_HTML_PARSERS = {
+    "intel-psirt": _parse_intel_psirt,
+    "amd-psirt":   _parse_amd_psirt,
+}
+
+
+def parse_html_body(src: Source, body: bytes) -> list[dict[str, Any]]:
+    """Dispatch to a per-source HTML parser when one is registered;
+    fall back to the generic regex-over-advisory-IDs extractor."""
+    text = body.decode("utf-8", errors="replace")
+    parser = _HTML_PARSERS.get(src.name, _parse_html_generic)
+    return parser(src, text)
+
+
+def parse_body(src: Source, body: bytes) -> list[dict[str, Any]]:
+    return parse_feed_body(src, body) if src.kind in ("rss", "atom") else parse_html_body(src, body)
+
+
+def compute_cutoff(
+    scan_now: datetime.datetime,
+    last_run: str | None,
+    window_hours: float = DEFAULT_WINDOW_HOURS,
+) -> datetime.datetime:
+    base = scan_now - datetime.timedelta(hours=window_hours)
+    lr = parse_iso(last_run)
+    if lr is None:
+        return base
+    widened = scan_now - (scan_now - lr + datetime.timedelta(hours=1))
+    return min(base, widened)
+
+
+def _resolve_window_hours() -> float:
+    """Pick up WINDOW_HOURS from the environment (set by workflow_dispatch).
+    Falls back to DEFAULT_WINDOW_HOURS for cron runs or local invocations."""
+    raw = os.environ.get("WINDOW_HOURS", "").strip()
+    if not raw:
+        return float(DEFAULT_WINDOW_HOURS)
+    try:
+        v = float(raw)
+        if v <= 0:
+            raise ValueError("must be > 0")
+        return v
+    except ValueError:
+        print(f"warning: ignoring invalid WINDOW_HOURS={raw!r}, using {DEFAULT_WINDOW_HOURS}",
+              file=sys.stderr)
+        return float(DEFAULT_WINDOW_HOURS)
+
+
+def _resolve_reconsider_age_days() -> float:
+    """Pick up RECONSIDER_AGE_DAYS from the environment. Entries whose last
+    review (reconsidered_at, or first_seen if never reconsidered) is more
+    recent than this many days ago are skipped. 0 = reconsider everything
+    every run (no throttle)."""
+    raw = os.environ.get("RECONSIDER_AGE_DAYS", "").strip()
+    if not raw:
+        return float(DEFAULT_RECONSIDER_AGE_DAYS)
+    try:
+        v = float(raw)
+        if v < 0:
+            raise ValueError("must be >= 0")
+        return v
+    except ValueError:
+        print(f"warning: ignoring invalid RECONSIDER_AGE_DAYS={raw!r}, "
+              f"using {DEFAULT_RECONSIDER_AGE_DAYS}", file=sys.stderr)
+        return float(DEFAULT_RECONSIDER_AGE_DAYS)
+
+
+def backlog_to_reconsider(
+    data: dict[str, Any],
+    scan_now: datetime.datetime,
+    min_age_days: float = DEFAULT_RECONSIDER_AGE_DAYS,
+) -> list[dict[str, Any]]:
+    """Walk state.seen and emit toimplement/tocheck entries for re-review.
+
+    Throttle: skip entries whose "last review" timestamp is more recent
+    than `min_age_days` ago. "Last review" is `reconsidered_at` if Claude
+    has already reconsidered the entry at least once, otherwise
+    `first_seen` (the initial classification was itself a review). With
+    `min_age_days=0` the throttle is disabled — every qualifying entry
+    is emitted on every run.
+
+    Items in `unrelated` are never emitted — those are settled.
+    A CVE alias pointing at this canonical is included in `extracted_cves`
+    so Claude sees every known CVE for the item without having to consult
+    the full alias map.
+    """
+    seen = data.get("seen", {})
+    aliases = data.get("aliases", {})
+    by_canonical: dict[str, list[str]] = {}
+    for alt, canon in aliases.items():
+        by_canonical.setdefault(canon, []).append(alt)
+
+    # Any entry whose last review is newer than this ISO cutoff is throttled.
+    cutoff = (scan_now - datetime.timedelta(days=min_age_days)).isoformat()
+
+    out: list[dict[str, Any]] = []
+    for canonical, rec in seen.items():
+        if rec.get("bucket") not in ("toimplement", "tocheck"):
+            continue
+        last_reviewed = rec.get("reconsidered_at") or rec.get("first_seen") or ""
+        if min_age_days > 0 and last_reviewed and last_reviewed > cutoff:
+            continue
+        cves: list[str] = []
+        if canonical.startswith("CVE-"):
+            cves.append(canonical)
+        for alt in by_canonical.get(canonical, []):
+            if alt.startswith("CVE-") and alt not in cves:
+                cves.append(alt)
+        out.append({
+            "canonical_id":   canonical,
+            "current_bucket": rec.get("bucket"),
+            "title":          rec.get("title") or "",
+            "sources":        list(rec.get("sources") or []),
+            "urls":           list(rec.get("urls") or []),
+            "extracted_cves": cves,
+            "first_seen":     rec.get("first_seen"),
+            "reconsidered_at": rec.get("reconsidered_at"),
+        })
+    return out
+
+
+def candidate_ids(item: dict[str, Any]) -> list[str]:
+    """All identifiers under which this item might already be known."""
+    seen: set[str] = set()
+    out: list[str] = []
+    for cand in (
+        *(item.get("extracted_cves") or []),
+        *(item.get("vendor_ids") or []),
+        item.get("stable_id"),
+        item.get("guid"),
+        item.get("permalink"),
+    ):
+        if cand and cand not in seen:
+            seen.add(cand)
+            out.append(cand)
+    return out
+
+
+def main() -> int:
+    ap = argparse.ArgumentParser()
+    ap.add_argument("--scan-date", default=os.environ.get("SCAN_DATE", ""))
+    ap.add_argument("--output", type=pathlib.Path, default=NEW_ITEMS_PATH)
+    args = ap.parse_args()
+
+    scan_now = now_from_scan_date(args.scan_date)
+    scan_date_iso = scan_now.isoformat()
+    window_hours = _resolve_window_hours()
+    reconsider_age_days = _resolve_reconsider_age_days()
+    data = state.load()
+    cutoff = compute_cutoff(scan_now, data.get("last_run"), window_hours)
+
+    per_source: dict[str, dict[str, Any]] = {}
+    all_new: list[dict[str, Any]] = []
+
+    for src in SOURCES:
+        meta = dict(data["sources"].get(src.name, {}))
+        status, body, etag, last_modified = conditional_get(
+            src.url, meta.get("etag"), meta.get("last_modified"),
+            user_agent=src.user_agent or USER_AGENT,
+        )
+        meta["last_fetched_at"] = scan_date_iso
+        meta["last_status"] = status
+
+        if isinstance(status, str) or (isinstance(status, int) and status >= 400 and status != 304):
+            per_source[src.name] = {"status": status, "new": 0}
+            data["sources"][src.name] = meta
+            continue
+
+        if status == 304 or body is None:
+            per_source[src.name] = {"status": 304, "new": 0}
+            data["sources"][src.name] = meta
+            continue
+
+        # Refresh cache headers only on successful 200.
+        if etag:
+            meta["etag"] = etag
+        if last_modified:
+            meta["last_modified"] = last_modified
+
+        items = parse_body(src, body)
+        total = len(items)
+
+        in_window = []
+        for it in items:
+            pub = parse_iso(it.get("published_at"))
+            if pub is None or pub >= cutoff:
+                in_window.append(it)
+
+        new: list[dict[str, Any]] = []
+        hwm_pub = meta.get("hwm_published_at")
+        hwm_id = meta.get("hwm_id")
+        for it in in_window:
+            if state.lookup(data, candidate_ids(it)) is not None:
+                continue
+            new.append(it)
+            pub = it.get("published_at")
+            if pub and (not hwm_pub or pub > hwm_pub):
+                hwm_pub = pub
+                hwm_id = it.get("stable_id")
+
+        if new:
+            meta["hwm_published_at"] = hwm_pub
+            meta["hwm_id"] = hwm_id
+
+        data["sources"][src.name] = meta
+        per_source[src.name] = {"status": status, "new": len(new), "total_in_feed": total}
+        all_new.extend(new)
+
+    # Persist updated HTTP cache metadata regardless of whether Claude runs.
+    state.save(data)
+
+    reconsider = backlog_to_reconsider(data, scan_now, reconsider_age_days)
+
+    out = {
+        "scan_date": scan_date_iso,
+        "window_cutoff": cutoff.isoformat(),
+        "per_source": per_source,
+        "items": all_new,
+        "reconsider": reconsider,
+    }
+    args.output.write_text(json.dumps(out, indent=2, sort_keys=True) + "\n")
+
+    # GitHub Actions step outputs. Downstream `if:` conditions gate the
+    # classify step on `new_count || reconsider_count`; both must be 0
+    # for Claude to be skipped.
+    gh_out = os.environ.get("GITHUB_OUTPUT")
+    if gh_out:
+        with open(gh_out, "a") as f:
+            f.write(f"new_count={len(all_new)}\n")
+            f.write(f"reconsider_count={len(reconsider)}\n")
+            failures = [
+                s for s, v in per_source.items()
+                if not (isinstance(v["status"], int) and v["status"] in (200, 304))
+            ]
+            f.write(f"fetch_failures_count={len(failures)}\n")
+
+    print(f"Scan date:    {scan_date_iso}")
+    print(f"Window:       {window_hours:g} h")
+    print(f"Cutoff:       {cutoff.isoformat()}")
+    print(f"New items:    {len(all_new)}")
+    if reconsider_age_days == 0:
+        print(f"Reconsider:   {len(reconsider)} (throttle disabled)")
+    else:
+        print(f"Reconsider:   {len(reconsider)} (throttle: "
+              f"skip entries reviewed <{reconsider_age_days:g}d ago)")
+    for s, v in per_source.items():
+        print(f"  {s:14s} status={str(v['status']):>16} new={v['new']}")
+
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())

scripts/vuln_watch/merge_state.py

@@ -0,0 +1,298 @@
+#!/usr/bin/env python3
+"""Merge Claude's classifications.json into state/seen.json.
+
+Inputs:
+    state/seen.json          (already has updated .sources from fetch_and_diff)
+    classifications.json     (written by the Claude step; list of records)
+    new_items.json           (fallback source of per-item metadata, if Claude
+                              omitted urls/sources in a record)
+
+Each classification record has shape:
+    {
+      "stable_id":      "...",           # required (the key used in new_items.json)
+      "canonical_id":   "...",           # optional; defaults to first extracted_cves, else stable_id
+      "bucket":         "toimplement|tocheck|unrelated",
+      "extracted_cves": ["...", ...],    # optional
+      "sources":        ["...", ...],    # optional
+      "urls":           ["...", ...],    # optional
+      "reconsider":     true             # optional; set by Claude for reconsidered
+                                         #   backlog entries — merge overwrites
+                                         #   the stored bucket (incl. demotions)
+                                         #   instead of promoting
+    }
+
+Behavior:
+    - For records WITHOUT `reconsider: true` (fresh items):
+      upsert seen[canonical_id], union sources/urls, promote bucket strength.
+    - For records WITH `reconsider: true` (previously-classified entries):
+      overwrite the stored bucket unconditionally (permits demotions), union
+      sources/urls. If Claude's canonical_id differs from the stable_id (the
+      previous canonical), rekey the seen entry under the new ID and leave
+      the old as an alias — used when a CVE has since been assigned to what
+      was previously a bare vendor-ID entry.
+    - For every alt_id in (stable_id, vendor_ids, extracted_cves) that differs
+      from canonical_id, set aliases[alt_id] = canonical_id.
+    - Update last_run to SCAN_DATE.
+    - Prune entries older than RETENTION_DAYS (180) before writing.
+    - Also writes the three daily watch_*.md files as stubs if Claude didn't run
+      (i.e. when new_items.json was empty and the classify step was skipped).
+"""
+from __future__ import annotations
+
+import argparse
+import datetime
+import json
+import os
+import pathlib
+import sys
+from typing import Any
+
+from . import state
+
+
+RETENTION_DAYS = 180
+NEW_ITEMS_PATH = pathlib.Path("new_items.json")
+CLASSIFICATIONS_PATH = pathlib.Path("classifications.json")
+
+
+def _load_json(path: pathlib.Path, default: Any) -> Any:
+    if not path.exists():
+        return default
+    return json.loads(path.read_text())
+
+
+def _canonical(record: dict[str, Any], fallback_meta: dict[str, Any] | None) -> str:
+    if record.get("canonical_id"):
+        return record["canonical_id"]
+    cves = record.get("extracted_cves") or (fallback_meta or {}).get("extracted_cves") or []
+    if cves:
+        return cves[0]
+    return record["stable_id"]
+
+
+def _alt_ids(record: dict[str, Any], fallback_meta: dict[str, Any] | None) -> list[str]:
+    ids: list[str] = []
+    ids.append(record.get("stable_id", ""))
+    ids.extend(record.get("extracted_cves") or [])
+    if fallback_meta:
+        ids.extend(fallback_meta.get("extracted_cves") or [])
+        ids.extend(fallback_meta.get("vendor_ids") or [])
+        guid = fallback_meta.get("guid")
+        if guid:
+            ids.append(guid)
+        link = fallback_meta.get("permalink")
+        if link:
+            ids.append(link)
+    return [i for i in ids if i]
+
+
+def _unique(seq: list[str]) -> list[str]:
+    seen: set[str] = set()
+    out: list[str] = []
+    for x in seq:
+        if x and x not in seen:
+            seen.add(x)
+            out.append(x)
+    return out
+
+
+def merge(
+    data: dict[str, Any],
+    classifications: list[dict[str, Any]],
+    new_items_by_stable_id: dict[str, dict[str, Any]],
+    scan_date: str,
+) -> None:
+    for rec in classifications:
+        if not rec.get("stable_id"):
+            continue
+        if rec.get("reconsider"):
+            _apply_reconsider(data, rec, scan_date)
+        else:
+            _apply_new_item(data, rec, new_items_by_stable_id, scan_date)
+
+
+def _apply_new_item(
+    data: dict[str, Any],
+    rec: dict[str, Any],
+    new_items_by_stable_id: dict[str, dict[str, Any]],
+    scan_date: str,
+) -> None:
+    stable_id = rec["stable_id"]
+    meta = new_items_by_stable_id.get(stable_id, {})
+    canonical = _canonical(rec, meta)
+    bucket = rec.get("bucket", "unrelated")
+    title = (meta.get("title") or "").strip()
+
+    existing = data["seen"].get(canonical)
+    if existing is None:
+        data["seen"][canonical] = {
+            "bucket": bucket,
+            "first_seen": scan_date,
+            "seen_at": scan_date,
+            "title": title,
+            "sources": _unique(list(rec.get("sources") or []) + ([meta.get("source")] if meta.get("source") else [])),
+            "urls":    _unique(list(rec.get("urls") or []) + ([meta.get("permalink")] if meta.get("permalink") else [])),
+        }
+    else:
+        existing["bucket"] = state.promote_bucket(existing["bucket"], bucket)
+        existing["seen_at"] = scan_date
+        existing.setdefault("first_seen", existing.get("seen_at") or scan_date)
+        if not existing.get("title") and title:
+            existing["title"] = title
+        existing["sources"] = _unique(list(existing.get("sources") or []) + list(rec.get("sources") or []) + ([meta.get("source")] if meta.get("source") else []))
+        existing["urls"] = _unique(list(existing.get("urls") or []) + list(rec.get("urls") or []) + ([meta.get("permalink")] if meta.get("permalink") else []))
+
+    for alt in _alt_ids(rec, meta):
+        if alt != canonical:
+            data["aliases"][alt] = canonical
+
+
+def _apply_reconsider(
+    data: dict[str, Any],
+    rec: dict[str, Any],
+    scan_date: str,
+) -> None:
+    """Re-review of a previously-classified entry. The record's stable_id
+    is the entry's current canonical key in state; `canonical_id` may name
+    a new key (e.g. a freshly-assigned CVE) — in which case we rekey."""
+    old_key = rec["stable_id"]
+    new_canonical = _canonical(rec, None)
+    bucket = rec.get("bucket", "unrelated")
+
+    # Resolve the current record — may need to follow an alias if the
+    # backlog snapshot the classifier reviewed is slightly out of sync.
+    current_key = old_key if old_key in data["seen"] else data["aliases"].get(old_key)
+    if not current_key or current_key not in data["seen"]:
+        print(f"warning: reconsider record for {old_key!r} points at no "
+              f"state entry; skipping.", file=sys.stderr)
+        return
+
+    existing = data["seen"][current_key]
+
+    # Overwrite bucket unconditionally (allows demotions) and stamp the
+    # reconsideration date so we can later throttle if this grows.
+    existing["bucket"] = bucket
+    existing["seen_at"] = scan_date
+    existing["reconsidered_at"] = scan_date
+
+    # Union any fresh sources/urls the classifier surfaced.
+    if rec.get("sources"):
+        existing["sources"] = _unique(list(existing.get("sources") or []) + list(rec["sources"]))
+    if rec.get("urls"):
+        existing["urls"] = _unique(list(existing.get("urls") or []) + list(rec["urls"]))
+
+    # Alias every alt ID the classifier provided to the current key
+    # (before a possible rekey below redirects them).
+    for alt in _alt_ids(rec, None):
+        if alt != current_key:
+            data["aliases"][alt] = current_key
+
+    # Rekey if Claude newly identified a canonical ID (e.g., a CVE for a
+    # vendor-ID entry). If the destination already exists, merge; else
+    # move. In both cases, retarget all aliases and leave the old key
+    # itself as an alias.
+    if new_canonical and new_canonical != current_key:
+        if new_canonical in data["seen"]:
+            dest = data["seen"][new_canonical]
+            dest["bucket"] = state.promote_bucket(dest.get("bucket", "unrelated"), existing.get("bucket", "unrelated"))
+            dest["sources"] = _unique(list(dest.get("sources") or []) + list(existing.get("sources") or []))
+            dest["urls"] = _unique(list(dest.get("urls") or []) + list(existing.get("urls") or []))
+            if not dest.get("title") and existing.get("title"):
+                dest["title"] = existing["title"]
+            dest["seen_at"] = scan_date
+            dest["reconsidered_at"] = scan_date
+            dest.setdefault("first_seen", existing.get("first_seen") or scan_date)
+            del data["seen"][current_key]
+        else:
+            data["seen"][new_canonical] = existing
+            del data["seen"][current_key]
+
+        for alias_key, target in list(data["aliases"].items()):
+            if target == current_key:
+                data["aliases"][alias_key] = new_canonical
+        data["aliases"][current_key] = new_canonical
+        # Clean up any self-aliases the retarget may have produced.
+        for k in [k for k, v in data["aliases"].items() if k == v]:
+            del data["aliases"][k]
+
+
+def ensure_stub_reports(scan_date: str) -> None:
+    """If the Claude step was skipped, write empty stub watch_*.md files so the
+    report artifact is consistent across runs."""
+    day = scan_date[:10]  # YYYY-MM-DD
+    stub = "(no new items in this window)\n"
+    for bucket in ("toimplement", "tocheck", "unrelated"):
+        p = pathlib.Path(f"watch_{day}_{bucket}.md")
+        if not p.exists():
+            p.write_text(stub)
+
+
+def write_snapshots(data: dict[str, Any], scan_date: str) -> None:
+    """Write current_toimplement.md and current_tocheck.md — full backlog
+    snapshots reflecting every entry in state under those buckets. A human
+    who reads only the latest run's artifact sees the complete picture
+    without having to consult prior runs."""
+    for bucket in ("toimplement", "tocheck"):
+        entries = [
+            (cid, rec) for cid, rec in data["seen"].items()
+            if rec.get("bucket") == bucket
+        ]
+        # Oldest first — long-lingering items stay at the top as a reminder.
+        entries.sort(key=lambda kv: kv[1].get("first_seen") or kv[1].get("seen_at") or "")
+        out = [
+            f"# Current `{bucket}` backlog",
+            "",
+            f"_Snapshot as of {scan_date}. "
+            f"{len(entries)} item(s). Oldest first._",
+            "",
+        ]
+        if not entries:
+            out.append("(backlog is empty)")
+        else:
+            for cid, rec in entries:
+                title = rec.get("title") or ""
+                first_seen = (rec.get("first_seen") or rec.get("seen_at") or "")[:10]
+                sources = ", ".join(rec.get("sources") or []) or "(none)"
+                out.append(f"- **{cid}**" + (f" — {title}" if title else ""))
+                out.append(f"  first seen {first_seen} · sources: {sources}")
+                for u in rec.get("urls") or []:
+                    out.append(f"  - {u}")
+                out.append("")
+        pathlib.Path(f"current_{bucket}.md").write_text("\n".join(out))
+
+
+def main() -> int:
+    ap = argparse.ArgumentParser()
+    ap.add_argument("--scan-date", default=os.environ.get("SCAN_DATE", ""))
+    ap.add_argument("--classifications", type=pathlib.Path, default=CLASSIFICATIONS_PATH)
+    ap.add_argument("--new-items", type=pathlib.Path, default=NEW_ITEMS_PATH)
+    args = ap.parse_args()
+
+    scan_date = args.scan_date or datetime.datetime.now(datetime.timezone.utc).isoformat()
+
+    data = state.load()
+    classifications = _load_json(args.classifications, [])
+    new_items_doc = _load_json(args.new_items, {"items": []})
+    new_items_by_stable_id = {it["stable_id"]: it for it in new_items_doc.get("items", []) if it.get("stable_id")}
+
+    if not isinstance(classifications, list):
+        print(f"warning: {args.classifications} is not a list; ignoring", file=sys.stderr)
+        classifications = []
+
+    merge(data, classifications, new_items_by_stable_id, scan_date)
+    data["last_run"] = scan_date
+
+    scan_now = datetime.datetime.fromisoformat(scan_date.replace("Z", "+00:00"))
+    before, after = state.prune(data, RETENTION_DAYS, scan_now)
+    state.save(data)
+    ensure_stub_reports(scan_date)
+    write_snapshots(data, scan_date)
+
+    print(f"Merged {len(classifications)} classifications.")
+    print(f"Pruned seen: {before} -> {after} entries (retention={RETENTION_DAYS}d).")
+    print(f"Aliases: {len(data['aliases'])}.")
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())

scripts/vuln_watch/sources.py

@@ -0,0 +1,59 @@
+"""Declarative list of sources polled by the daily vuln scan."""
+from dataclasses import dataclass
+from typing import Literal
+
+Kind = Literal["rss", "atom", "html"]
+
+
+@dataclass(frozen=True)
+class Source:
+    name: str
+    url: str
+    kind: Kind
+    # For HTML sources: regexes used to extract advisory IDs from the page.
+    advisory_id_patterns: tuple[str, ...] = ()
+    # Human-facing URL to use as permalink fallback when `url` points at a
+    # non-browsable endpoint (e.g. a JS data file). Empty = use `url`.
+    display_url: str = ""
+    # Per-source UA override. AMD's CDN drops connections when the UA string
+    # contains a parenthesized URL, while Intel/ARM's WAF rejects UAs that
+    # don't identify themselves — so we can't use one UA everywhere.
+    # Empty = use the module-level USER_AGENT.
+    user_agent: str = ""
+
+
+SOURCES: tuple[Source, ...] = (
+    Source("phoronix",       "https://www.phoronix.com/rss.php", "rss"),
+    Source("oss-sec",        "https://seclists.org/rss/oss-sec.rss", "rss"),
+    Source("lwn",            "https://lwn.net/headlines/newrss", "rss"),
+    Source("project-zero",   "https://googleprojectzero.blogspot.com/feeds/posts/default", "atom"),
+    Source("vusec",          "https://www.vusec.net/feed/", "rss"),
+    Source("comsec-eth",     "https://comsec.ethz.ch/category/news/feed/", "rss"),
+    # api.msrc.microsoft.com/update-guide/rss is the real RSS endpoint; the
+    # msrc.microsoft.com/... URL returns the SPA shell (2.7 KB) instead.
+    Source("msrc",           "https://api.msrc.microsoft.com/update-guide/rss", "rss"),
+    Source("cisa",           "https://www.cisa.gov/cybersecurity-advisories/all.xml", "rss"),
+    Source("cert-cc",        "https://www.kb.cert.org/vuls/atomfeed/", "atom"),
+    Source("intel-psirt",    "https://www.intel.com/content/www/us/en/security-center/default.html", "html",
+           (r"INTEL-SA-\d+",)),
+    Source("amd-psirt",      "https://www.amd.com/en/resources/product-security.html", "html",
+           (r"AMD-SB-\d+",),
+           user_agent="spectre-meltdown-checker/vuln-watch"),
+    Source("arm-spec",       "https://developer.arm.com/Arm%20Security%20Center/Speculative%20Processor%20Vulnerability", "html",
+           (r"CVE-\d{4}-\d{4,7}",)),
+    # transient.fail renders its attack table from tree.js client-side; we
+    # pull the JS file directly (CVE regex works on its JSON-ish body).
+    Source("transient-fail", "https://transient.fail/tree.js", "html",
+           (r"CVE-\d{4}-\d{4,7}",),
+           display_url="https://transient.fail/"),
+)
+
+# Identify ourselves honestly. Akamai/Cloudflare WAFs fronting intel.com,
+# developer.arm.com, and cisa.gov return 403 when the UA claims "Mozilla"
+# but TLS/HTTP fingerprint doesn't match a real browser — an honest bot UA
+# passes those rules cleanly.
+USER_AGENT = (
+    "spectre-meltdown-checker/vuln-watch "
+    "(+https://github.com/speed47/spectre-meltdown-checker)"
+)
+REQUEST_TIMEOUT = 30

scripts/vuln_watch/state.py

@@ -0,0 +1,137 @@
+"""Load/save/migrate/lookup helpers for state/seen.json.
+
+Schema v2:
+    {
+      "schema_version": 2,
+      "last_run": "<iso8601>|null",
+      "sources": {
+        "<name>": {
+          "etag": "...",
+          "last_modified": "...",
+          "hwm_id": "...",
+          "hwm_published_at": "<iso8601>",
+          "last_fetched_at": "<iso8601>",
+          "last_status": 200|304|<http-err>|"<str-err>"
+        }
+      },
+      "seen": {
+        "<canonical_id>": {
+          "bucket": "toimplement|tocheck|unrelated",
+          "seen_at": "<iso8601>",
+          "sources": ["<source-name>", ...],
+          "urls":    ["<permalink>", ...]
+        }
+      },
+      "aliases": { "<alt_id>": "<canonical_id>" }
+    }
+"""
+from __future__ import annotations
+
+import datetime
+import json
+import pathlib
+from typing import Any
+
+
+STATE_PATH = pathlib.Path("state/seen.json")
+SCHEMA_VERSION = 2
+
+
+def empty() -> dict[str, Any]:
+    return {
+        "schema_version": SCHEMA_VERSION,
+        "last_run": None,
+        "sources": {},
+        "seen": {},
+        "aliases": {},
+    }
+
+
+def load(path: pathlib.Path = STATE_PATH) -> dict[str, Any]:
+    if not path.exists():
+        # Fallback: a committed bootstrap seed, used to bridge a workflow
+        # rename (old workflow_id's artifacts are invisible to the new one).
+        # Remove the bootstrap file once one successful run has produced a
+        # normal artifact, otherwise it will shadow any future first-run.
+        bootstrap = path.parent / f"{path.name}.bootstrap"
+        if bootstrap.exists():
+            print(f"state: seeding from {bootstrap} (no prior-run artifact found)")
+            path = bootstrap
+    if not path.exists():
+        return empty()
+    data = json.loads(path.read_text())
+    return _migrate(data)
+
+
+def save(data: dict[str, Any], path: pathlib.Path = STATE_PATH) -> None:
+    path.parent.mkdir(parents=True, exist_ok=True)
+    path.write_text(json.dumps(data, indent=2, sort_keys=True) + "\n")
+
+
+def _migrate(data: dict[str, Any]) -> dict[str, Any]:
+    """Bring any older schema up to SCHEMA_VERSION."""
+    version = data.get("schema_version")
+    if version == SCHEMA_VERSION:
+        data.setdefault("sources", {})
+        data.setdefault("aliases", {})
+        data.setdefault("seen", {})
+        return data
+
+    # v1 shape: {"last_run": ..., "seen": {<id>: {bucket, seen_at, source, cve?}}}
+    migrated_seen: dict[str, Any] = {}
+    aliases: dict[str, str] = {}
+    for key, entry in (data.get("seen") or {}).items():
+        rec = {
+            "bucket":  entry.get("bucket", "unrelated"),
+            "seen_at": entry.get("seen_at"),
+            "sources": [entry["source"]] if entry.get("source") else [],
+            "urls":    [key] if isinstance(key, str) and key.startswith("http") else [],
+        }
+        migrated_seen[key] = rec
+        # If a v1 entry had a CVE that differs from the key, alias the CVE -> key.
+        cve = entry.get("cve")
+        if cve and cve != key:
+            aliases[cve] = key
+
+    return {
+        "schema_version": SCHEMA_VERSION,
+        "last_run": data.get("last_run"),
+        "sources": {},
+        "seen": migrated_seen,
+        "aliases": aliases,
+    }
+
+
+def lookup(data: dict[str, Any], candidate_ids: list[str]) -> str | None:
+    """Return the canonical key if any candidate is already known, else None."""
+    seen = data["seen"]
+    aliases = data["aliases"]
+    for cid in candidate_ids:
+        if not cid:
+            continue
+        if cid in seen:
+            return cid
+        canonical = aliases.get(cid)
+        if canonical and canonical in seen:
+            return canonical
+    return None
+
+
+_BUCKET_STRENGTH = {"unrelated": 0, "tocheck": 1, "toimplement": 2}
+
+
+def promote_bucket(current: str, incoming: str) -> str:
+    """Return whichever of two buckets represents the 'stronger' classification."""
+    return incoming if _BUCKET_STRENGTH.get(incoming, 0) > _BUCKET_STRENGTH.get(current, 0) else current
+
+
+def prune(data: dict[str, Any], days: int, now: datetime.datetime) -> tuple[int, int]:
+    """Drop seen entries older than `days`, and aliases pointing at dropped keys."""
+    cutoff = (now - datetime.timedelta(days=days)).isoformat()
+    before = len(data["seen"])
+    data["seen"] = {
+        k: v for k, v in data["seen"].items()
+        if (v.get("seen_at") or "9999") >= cutoff
+    }
+    data["aliases"] = {k: v for k, v in data["aliases"].items() if v in data["seen"]}
+    return before, len(data["seen"])

spectre-meltdown-checker.sh

@@ -1,825 +0,0 @@
-#! /bin/sh
-# Spectre & Meltdown checker
-#
-# Check for the latest version at:
-# https://github.com/speed47/spectre-meltdown-checker
-# git clone https://github.com/speed47/spectre-meltdown-checker.git
-# or wget https://raw.githubusercontent.com/speed47/spectre-meltdown-checker/master/spectre-meltdown-checker.sh
-#
-# Stephane Lesimple
-#
-VERSION=0.22
-
-# Script configuration
-show_usage()
-{
-	cat <<EOF
-	Usage:
-		Live mode:    $0 [options] [--live]
-		Offline mode: $0 [options] [--kernel <vmlinux_file>] [--config <kernel_config>] [--map <kernel_map_file>]
-
-	Modes:
-		Two modes are available.
-
-		First mode is the "live" mode (default), it does its best to find information about the currently running kernel.
-		To run under this mode, just start the script without any option (you can also use --live explicitely)
-
-		Second mode is the "offline" mode, where you can inspect a non-running kernel.
-		You'll need to specify the location of the vmlinux file, and if possible, the corresponding config and System.map files:
-
-		--kernel vmlinux_file		Specify a (possibly compressed) vmlinux file
-		--config kernel_config		Specify a kernel config file
-		--map	 kernel_map_file	Specify a kernel System.map file
-
-	Options:
-		--no-color			Don't use color codes
-		-v, --verbose			Increase verbosity level
-		--batch text			Produce machine readable output, this is the default if --batch is specified alone
-		--batch nrpe			Produce machine readable output formatted for NRPE
-		--variant [1,2,3]		Specify which variant you'd like to check, by default all variants are checked
-						Can be specified multiple times (e.g. --variant 2 --variant 3)
-
-	IMPORTANT:
-	A false sense of security is worse than no security at all.
-	Please use the --disclaimer option to understand exactly what this script does.
-
-EOF
-}
-
-show_disclaimer()
-{
-	cat <<EOF
-Disclaimer:
-
-This tool does its best to determine whether your system is immune (or has proper mitigations in place) for the
-collectively named "speculative execution" vulnerabilities. It doesn't attempt to run any kind of exploit, and can't guarantee
-that your system is secure, but rather helps you verifying whether your system has the known correct mitigations in place.
-However, some mitigations could also exist in your kernel that this script doesn't know (yet) how to detect, or it might
-falsely detect mitigations that in the end don't work as expected (for example, on backported or modified kernels).
-
-Your system exposure also depends on your CPU. As of now, AMD and ARM processors are marked as immune to some or all of these
-vulnerabilities (except some specific ARM models). All Intel processors manufactured since circa 1995 are thought to be vulnerable.
-Whatever processor one uses, one might seek more information from the manufacturer of that processor and/or of the device
-in which it runs.
-
-The nature of the discovered vulnerabilities being quite new, the landscape of vulnerable processors can be expected
-to change over time, which is why this script makes the assumption that all CPUs are vulnerable, except if the manufacturer
-explicitely stated otherwise in a verifiable public announcement.
-
-This tool has been released in the hope that it'll be useful, but don't use it to jump to conclusions about your security.
-
-EOF
-}
-
-# parse options
-opt_kernel=''
-opt_config=''
-opt_map=''
-opt_live_explicit=0
-opt_live=1
-opt_no_color=0
-opt_batch=0
-opt_batch_format="text"
-opt_verbose=1
-opt_variant1=0
-opt_variant2=0
-opt_variant3=0
-opt_allvariants=1
-
-nrpe_critical=0
-nrpe_unknown=0
-nrpe_vuln=""
-
-__echo()
-{
-	opt="$1"
-	shift
-	msg="$@"
-	if [ "$opt_no_color" = 1 ] ; then
-		# strip ANSI color codes
-		msg=$(/bin/echo -e  "$msg" | sed -r "s/\x1B\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g")
-	fi
-	# explicitely call /bin/echo to avoid shell builtins that might not take options
-	/bin/echo $opt -e "$msg"
-}
-
-_echo()
-{
-	if [ $opt_verbose -ge $1 ]; then
-		shift
-		__echo '' "$@"
-	fi
-}
-
-_echo_nol()
-{
-	if [ $opt_verbose -ge $1 ]; then
-		shift
-		__echo -n "$@"
-	fi
-}
-
-_warn()
-{
-	_echo 0 "\033[31m${@}\033[0m"
-}
-
-_info()
-{
-	_echo 1 "$@"
-}
-
-_info_nol()
-{
-	_echo_nol 1 "$@"
-}
-
-_verbose()
-{
-	_echo 2 "$@"
-}
-
-is_cpu_vulnerable()
-{
-	# param: 1, 2 or 3 (variant)
-	# returns 1 if vulnerable, 0 if not vulnerable, 255 on error
-	# by default, everything is vulnerable, we work in a "whitelist" logic here.
-	# usage: is_cpu_vulnerable 2 && do something if vulnerable
-	variant1=0
-	variant2=0
-	variant3=0
-	if grep -q AMD /proc/cpuinfo; then
-		variant1=0
-		variant2=1
-		variant3=1
-	elif grep -qi 'CPU implementer\s*:\s*0x41' /proc/cpuinfo; then
-		# ARM
-		# reference: https://developer.arm.com/support/security-update
-		cpupart=$(awk '/CPU part/         {print $4;exit}' /proc/cpuinfo)
-		cpuarch=$(awk '/CPU architecture/ {print $3;exit}' /proc/cpuinfo)
-		if [ -n "$cpupart" -a -n "$cpuarch" ]; then
-			# Cortex-R7 and Cortex-R8 are real-time and only used in medical devices or such
-			# I can't find their CPU part number, but it's probably not that useful anyway
-			# model R7 R8 A9    A15   A17   A57   A72    A73    A75
-			# part   ?  ? 0xc09 0xc0f 0xc0e 0xd07 0xd08  0xd09  0xd0a
-			# arch  7? 7? 7     7     7     8     8      8      8
-			if [ "$cpuarch" = 7 ] && echo "$cpupart" | grep -Eq '^0x(c09|c0f|c0e)$'; then
-				# armv7 vulnerable chips
-				variant1=0
-				variant2=0
-			elif [ "$cpuarch" = 8 ] && echo "$cpupart" | grep -Eq '^0x(d07|d08|d09|d0a)$'; then
-				# armv8 vulnerable chips
-				variant1=0
-				variant2=0
-			else
-				variant1=1
-				variant2=1
-			fi
-			# for variant3, only A75 is vulnerable
-			if [ "$cpuarch" = 8 -a "$cpupart" = 0xd0a ]; then
-				variant3=0
-			else
-				variant3=1
-			fi
-		fi
-	fi
-	[ "$1" = 1 ] && return $variant1
-	[ "$1" = 2 ] && return $variant2
-	[ "$1" = 3 ] && return $variant3
-	return 255
-}
-
-show_header()
-{
-	_info "\033[1;34mSpectre and Meltdown mitigation detection tool v$VERSION\033[0m"
-	_info
-}
-
-parse_opt_file()
-{
-	# parse_opt_file option_name option_value
-	option_name="$1"
-	option_value="$2"
-	if [ -z "$option_value" ]; then
-		show_header
-		show_usage
-		echo "$0: error: --$option_name expects one parameter (a file)" >&2
-		exit 1
-	elif [ ! -e "$option_value" ]; then
-		show_header
-		echo "$0: error: couldn't find file $option_value" >&2
-		exit 1
-	elif [ ! -f "$option_value" ]; then
-		show_header
-		echo "$0: error: $option_value is not a file" >&2
-		exit 1
-	elif [ ! -e "$option_value" ]; then
-		show_header
-		echo "$0: error: couldn't read $option_value (are you root?)" >&2
-		exit 1
-	fi
-	echo "$option_value"
-	exit 0
-}
-
-while [ -n "$1" ]; do
-	if [ "$1" = "--kernel" ]; then
-		opt_kernel=$(parse_opt_file kernel "$2")
-		[ $? -ne 0 ] && exit $?
-		shift 2
-		opt_live=0
-	elif [ "$1" = "--config" ]; then
-		opt_config=$(parse_opt_file config "$2")
-		[ $? -ne 0 ] && exit $?
-		shift 2
-		opt_live=0
-	elif [ "$1" = "--map" ]; then
-		opt_map=$(parse_opt_file map "$2")
-		[ $? -ne 0 ] && exit $?
-		shift 2
-		opt_live=0
-	elif [ "$1" = "--live" ]; then
-		opt_live_explicit=1
-		shift
-	elif [ "$1" = "--no-color" ]; then
-		opt_no_color=1
-		shift
-	elif [ "$1" = "--batch" ]; then
-		opt_batch=1
-		opt_verbose=0
-		shift
-		case "$1" in
-			text|nrpe) opt_batch_format="$1"; shift;;
-			--*) ;;    # allow subsequent flags
-			'') ;;     # allow nothing at all
-			*)
-				echo "$0: error: unknown batch format '$1'"
-				echo "$0: error: --batch expects a format from: text, nrpe"
-				exit 1 >&2
-				;;
-		esac
-	elif [ "$1" = "-v" -o "$1" = "--verbose" ]; then
-		opt_verbose=$(expr $opt_verbose + 1)
-		shift
-	elif [ "$1" = "--variant" ]; then
-		if [ -z "$2" ]; then
-			echo "$0: error: option --variant expects a parameter (1, 2 or 3)" >&2
-			exit 1
-		fi
-		case "$2" in
-			1) opt_variant1=1; opt_allvariants=0;;
-			2) opt_variant2=1; opt_allvariants=0;;
-			3) opt_variant3=1; opt_allvariants=0;;
-			*)
-				echo "$0: error: invalid parameter '$2' for --variant, expected either 1, 2 or 3" >&2;
-				exit 1;;
-		esac
-		shift 2
-	elif [ "$1" = "-h" -o "$1" = "--help" ]; then
-		show_header
-		show_usage
-		exit 0
-	elif [ "$1" = "--disclaimer" ]; then
-		show_header
-		show_disclaimer
-		exit 0
-	else
-		show_header
-		show_usage
-		echo "$0: error: unknown option '$1'"
-		exit 1
-	fi
-done
-
-show_header
-
-# print status function
-pstatus()
-{
-	if [ "$opt_no_color" = 1 ]; then
-		_info_nol "$2"
-	else
-		case "$1" in
-			red)    col="\033[101m\033[30m";;
-			green)  col="\033[102m\033[30m";;
-			yellow) col="\033[103m\033[30m";;
-			blue)   col="\033[104m\033[30m";;
-			*)      col="";;
-		esac
-		_info_nol "$col $2 \033[0m"
-	fi
-	[ -n "$3" ] && _info_nol " ($3)"
-	_info
-}
-
-# Print the final status of a vulnerability (incl. batch mode)
-# Arguments are: CVE UNK/OK/VULN description
-pvulnstatus()
-{
-	if [ "$opt_batch" = 1 ]; then
-		case "$opt_batch_format" in
-			text) _echo 0 "$1: $2 ($3)";;
-			nrpe)
-				case "$2" in
-					UKN) nrpe_unknown="1";;
-					VULN) nrpe_critical="1"; nrpe_vuln="$nrpe_vuln $1";;
-				esac
-				;;
-		esac
-	fi
-
-	_info_nol "> \033[46m\033[30mSTATUS:\033[0m "
-	vulnstatus="$2"
-	shift 2
-	case "$vulnstatus" in
-		UNK) pstatus yellow UNKNOWN "$@";;
-		VULN) pstatus red 'VULNERABLE' "$@";;
-		OK) pstatus green 'NOT VULNERABLE' "$@";;
-	esac
-}
-
-
-# The 3 below functions are taken from the extract-linux script, available here:
-# https://github.com/torvalds/linux/blob/master/scripts/extract-vmlinux
-# The functions have been modified for better integration to this script
-# The original header of the file has been retained below
-
-# ----------------------------------------------------------------------
-# extract-vmlinux - Extract uncompressed vmlinux from a kernel image
-#
-# Inspired from extract-ikconfig
-# (c) 2009,2010 Dick Streefland <dick@streefland.net>
-#
-# (c) 2011      Corentin Chary <corentin.chary@gmail.com>
-#
-# Licensed under the GNU General Public License, version 2 (GPLv2).
-# ----------------------------------------------------------------------
-
-vmlinux=''
-vmlinux_err=''
-check_vmlinux()
-{
-	readelf -h $1 > /dev/null 2>&1 || return 1
-	return 0
-}
-
-try_decompress()
-{
-	# The obscure use of the "tr" filter is to work around older versions of
-	# "grep" that report the byte offset of the line instead of the pattern.
-
-	# Try to find the header ($1) and decompress from here
-	for     pos in `tr "$1\n$2" "\n$2=" < "$5" | grep -abo "^$2"`
-	do
-		if ! which $3 >/dev/null 2>&1; then
-			vmlinux_err="missing '$3' tool, please install it, usually it's in the '$4' package"
-			return 0
-		fi
-		pos=${pos%%:*}
-		tail -c+$pos "$5" | $3 > $vmlinuxtmp 2> /dev/null
-		check_vmlinux "$vmlinuxtmp" && vmlinux=$vmlinuxtmp && return 0
-	done
-	return 1
-}
-
-extract_vmlinux()
-{
-	[ -n "$1" ] || return 1
-	# Prepare temp files:
-	vmlinuxtmp="$(mktemp /tmp/vmlinux-XXXXXX)"
-	trap "rm -f $vmlinuxtmp" EXIT
-
-	# Initial attempt for uncompressed images or objects:
-	if check_vmlinux "$1"; then
-		cat "$1" > "$vmlinuxtmp"
-		vmlinux=$vmlinuxtmp
-		return 0
-	fi
-
-	# That didn't work, so retry after decompression.
-	try_decompress '\037\213\010' xy    gunzip     gunzip	"$1" && return 0
-	try_decompress '\3757zXZ\000' abcde unxz       xz-utils	"$1" && return 0
-	try_decompress 'BZh'          xy    bunzip2    bzip2	"$1" && return 0
-	try_decompress '\135\0\0\0'   xxx   unlzma     xz-utils	"$1" && return 0
-	try_decompress '\211\114\132' xy    'lzop -d'  lzop	"$1" && return 0
-	return 1
-}
-
-# end of extract-vmlinux functions
-
-# check for mode selection inconsistency
-if [ "$opt_live_explicit" = 1 ]; then
-	if [ -n "$opt_kernel" -o -n "$opt_config" -o -n "$opt_map" ]; then
-		show_usage
-		echo "$0: error: incompatible modes specified, use either --live or --kernel/--config/--map"
-		exit 1
-	fi
-fi
-
-# root check (only for live mode, for offline mode, we already checked if we could read the files)
-
-if [ "$opt_live" = 1 ]; then
-	if [ "$(id -u)" -ne 0 ]; then
-		_warn "Note that you should launch this script with root privileges to get accurate information."
-		_warn "We'll proceed but you might see permission denied errors."
-		_warn "To run it as root, you can try the following command: sudo $0"
-		_warn
-	fi
-	_info "Checking for vulnerabilities against live running kernel \033[35m"$(uname -s) $(uname -r) $(uname -v) $(uname -m)"\033[0m"
-
-	# try to find the image of the current running kernel
-	[ -e /boot/vmlinuz-linux       ] && opt_kernel=/boot/vmlinuz-linux
-	[ -e /boot/vmlinuz-linux-libre ] && opt_kernel=/boot/vmlinuz-linux-libre
-	[ -e /boot/vmlinuz-$(uname -r) ] && opt_kernel=/boot/vmlinuz-$(uname -r)
-	[ -e /boot/kernel-$( uname -r) ] && opt_kernel=/boot/kernel-$( uname -r)
-	[ -e /boot/bzImage-$(uname -r) ] && opt_kernel=/boot/bzImage-$(uname -r)
-	[ -e /boot/kernel-genkernel-$(uname -m)-$(uname -r) ] && opt_kernel=/boot/kernel-genkernel-$(uname -m)-$(uname -r)
-
-	# system.map
-	if [ -e /proc/kallsyms ] ; then
-		opt_map="/proc/kallsyms"
-	elif [ -e /boot/System.map-$(uname -r) ] ; then
-		opt_map=/boot/System.map-$(uname -r)
-	fi
-
-	# config
-	if [ -e /proc/config.gz ] ; then
-		dumped_config="$(mktemp /tmp/config-XXXXXX)"
-		gunzip -c /proc/config.gz > $dumped_config
-		# dumped_config will be deleted at the end of the script
-		opt_config=$dumped_config
-	elif [ -e /boot/config-$(uname -r) ]; then
-		opt_config=/boot/config-$(uname -r)
-	fi
-else
-	_info "Checking for vulnerabilities against specified kernel"
-fi
-if [ -n "$opt_kernel" ]; then
-	_verbose "Will use vmlinux image \033[35m$opt_kernel\033[0m"
-else
-	_verbose "Will use no vmlinux image (accuracy might be reduced)"
-fi
-if [ -n "$dumped_config" ]; then
-	_verbose "Will use kconfig \033[35m/proc/config.gz\033[0m"
-elif [ -n "$opt_config" ]; then
-	_verbose "Will use kconfig \033[35m$opt_config\033[0m"
-else
-	_verbose "Will use no kconfig (accuracy might be reduced)"
-fi
-if [ -n "$opt_map" ]; then
-	_verbose "Will use System.map file \033[35m$opt_map\033[0m"
-else
-	_verbose "Will use no System.map file (accuracy might be reduced)"
-fi
-
-if [ -e "$opt_kernel" ]; then
-	if ! which readelf >/dev/null 2>&1; then
-		vmlinux_err="missing 'readelf' tool, please install it, usually it's in the 'binutils' package"
-	else
-		extract_vmlinux "$opt_kernel"
-	fi
-else
-	vmlinux_err="couldn't find your kernel image in /boot, if you used netboot, this is normal"
-fi
-if [ -z "$vmlinux" -o ! -r "$vmlinux" ]; then
-	[ -z "$vmlinux_err" ] && vmlinux_err="couldn't extract your kernel from $opt_kernel"
-fi
-
-_info
-
-# end of header stuff
-
-# now we define some util functions and the check_*() funcs, as
-# the user can choose to execute only some of those
-
-mount_debugfs()
-{
-	if [ ! -e /sys/kernel/debug/sched_features ]; then
-		# try to mount the debugfs hierarchy ourselves and remember it to umount afterwards
-		mount -t debugfs debugfs /sys/kernel/debug 2>/dev/null && mounted_debugfs=1
-	fi
-}
-
-umount_debugfs()
-{
-	if [ "$mounted_debugfs" = 1 ]; then
-		# umount debugfs if we did mount it ourselves
-		umount /sys/kernel/debug
-	fi
-}
-
-###################
-# SPECTRE VARIANT 1
-check_variant1()
-{
-	_info "\033[1;34mCVE-2017-5753 [bounds check bypass] aka 'Spectre Variant 1'\033[0m"
-	_info_nol "* Checking count of LFENCE opcodes in kernel: "
-
-	status=0
-	if [ -n "$vmlinux_err" ]; then
-		pstatus yellow UNKNOWN "$vmlinux_err"
-	else
-		if ! which objdump >/dev/null 2>&1; then
-			pstatus yellow UNKNOWN "missing 'objdump' tool, please install it, usually it's in the binutils package"
-		else
-			# here we disassemble the kernel and count the number of occurences of the LFENCE opcode
-			# in non-patched kernels, this has been empirically determined as being around 40-50
-			# in patched kernels, this is more around 70-80, sometimes way higher (100+)
-			# v0.13: 68 found in a 3.10.23-xxxx-std-ipv6-64 (with lots of modules compiled-in directly), which doesn't have the LFENCE patches,
-			# so let's push the threshold to 70.
-			# TODO LKML patch is starting to dump LFENCE in favor of the PAUSE opcode, we might need to check that (patch not stabilized yet)
-			nb_lfence=$(objdump -D "$vmlinux" | grep -wc lfence)
-			if [ "$nb_lfence" -lt 70 ]; then
-				pstatus red NO "only $nb_lfence opcodes found, should be >= 70"
-				status=1
-			else
-				pstatus green YES "$nb_lfence opcodes found, which is >= 70"
-				status=2
-			fi
-		fi
-	fi
-
-	if ! is_cpu_vulnerable 1; then
-		pvulnstatus CVE-2017-5753 OK "your CPU vendor reported your CPU model as not vulnerable"
-	else
-		case "$status" in
-			0) pvulnstatus CVE-2017-5753 UNK "impossible to check ${vmlinux}";;
-			1) pvulnstatus CVE-2017-5753 VULN 'heuristic to be improved when official patches become available';;
-			2) pvulnstatus CVE-2017-5753 OK 'heuristic to be improved when official patches become available';;
-		esac
-	fi
-}
-
-###################
-# SPECTRE VARIANT 2
-check_variant2()
-{
-	_info "\033[1;34mCVE-2017-5715 [branch target injection] aka 'Spectre Variant 2'\033[0m"
-	_info "* Mitigation 1"
-	_info_nol "*   Hardware (CPU microcode) support for mitigation: "
-	if [ ! -e /dev/cpu/0/msr ]; then
-		# try to load the module ourselves (and remember it so we can rmmod it afterwards)
-		modprobe msr 2>/dev/null && insmod_msr=1
-	fi
-	if [ ! -e /dev/cpu/0/msr ]; then
-		pstatus yellow UNKNOWN "couldn't read /dev/cpu/0/msr, is msr support enabled in your kernel?"
-	else
-		# the new MSR 'SPEC_CTRL' is at offset 0x48
-		# here we use dd, it's the same as using 'rdmsr 0x48' but without needing the rdmsr tool
-		# if we get a read error, the MSR is not there
-		dd if=/dev/cpu/0/msr of=/dev/null bs=8 count=1 skip=9 2>/dev/null
-		if [ $? -eq 0 ]; then
-			pstatus green YES
-		else
-			pstatus red NO
-		fi
-	fi
-
-	if [ "$insmod_msr" = 1 ]; then
-		# if we used modprobe ourselves, rmmod the module
-		rmmod msr 2>/dev/null
-	fi
-
-	_info_nol "*   Kernel support for IBRS: "
-	if [ "$opt_live" = 1 ]; then
-		mount_debugfs
-		if [ -e /sys/kernel/debug/ibrs_enabled ]; then
-			# if the file is there, we have IBRS compiled-in
-			pstatus green YES
-			ibrs_supported=1
-			ibrs_enabled=$(cat /sys/kernel/debug/ibrs_enabled 2>/dev/null)
-		elif [ -e /sys/kernel/debug/x86/ibrs_enabled ]; then
-			# RedHat uses a different path (see https://access.redhat.com/articles/3311301)
-			pstatus green YES
-			ibrs_supported=1
-			ibrs_enabled=$(cat /sys/kernel/debug/x86/ibrs_enabled 2>/dev/null)
-		fi
-	fi
-	if [ "$ibrs_supported" != 1 -a -n "$opt_map" ]; then
-		if grep -q spec_ctrl "$opt_map"; then
-			pstatus green YES
-			ibrs_supported=1
-		fi
-	fi
-	if [ "$ibrs_supported" != 1 ]; then
-		pstatus red NO
-	fi
-
-	_info_nol "*   IBRS enabled for Kernel space: "
-	if [ "$opt_live" = 1 ]; then
-		# 0 means disabled
-		# 1 is enabled only for kernel space
-		# 2 is enabled for kernel and user space
-		case "$ibrs_enabled" in
-			"") [ "$ibrs_supported" = 1 ] && pstatus yellow UNKNOWN || pstatus red NO;;
-			0)     pstatus red NO;;
-			1 | 2) pstatus green YES;;
-			*)     pstatus yellow UNKNOWN;;
-		esac
-	else
-		pstatus blue N/A "not testable in offline mode"
-	fi
-
-	_info_nol "*   IBRS enabled for User space: "
-	if [ "$opt_live" = 1 ]; then
-		case "$ibrs_enabled" in
-			"") [ "$ibrs_supported" = 1 ] && pstatus yellow UNKNOWN || pstatus red NO;;
-			0 | 1) pstatus red NO;;
-			2) pstatus green YES;;
-			*) pstatus yellow UNKNOWN;;
-		esac
-	else
-		pstatus blue N/A "not testable in offline mode"
-	fi
-
-	_info "* Mitigation 2"
-	_info_nol "*   Kernel compiled with retpoline option: "
-	# We check the RETPOLINE kernel options
-	if [ -r "$opt_config" ]; then
-		if grep -q '^CONFIG_RETPOLINE=y' "$opt_config"; then
-			pstatus green YES
-			retpoline=1
-		else
-			pstatus red NO
-		fi
-	else
-		pstatus yellow UNKNOWN "couldn't read your kernel configuration"
-	fi
-
-	_info_nol "*   Kernel compiled with a retpoline-aware compiler: "
-	# Now check if the compiler used to compile the kernel knows how to insert retpolines in generated asm
-	# For gcc, this is -mindirect-branch=thunk-extern (detected by the kernel makefiles)
-	# See gcc commit https://github.com/hjl-tools/gcc/commit/23b517d4a67c02d3ef80b6109218f2aadad7bd79
-	# In latest retpoline LKML patches, the noretpoline_setup symbol exists only if CONFIG_RETPOLINE is set
-	# *AND* if the compiler is retpoline-compliant, so look for that symbol
-	if [ -n "$opt_map" ]; then
-		# look for the symbol
-		if grep -qw noretpoline_setup "$opt_map"; then
-			retpoline_compiler=1
-			pstatus green YES "noretpoline_setup symbol found in System.map"
-		else
-			pstatus red NO
-		fi
-	elif [ -n "$vmlinux" ]; then
-		# look for the symbol
-		if which nm >/dev/null 2>&1; then
-			# the proper way: use nm and look for the symbol
-			if nm "$vmlinux" 2>/dev/null | grep -qw 'noretpoline_setup'; then
-				retpoline_compiler=1
-				pstatus green YES "noretpoline_setup found in vmlinux symbols"
-			else
-				pstatus red NO
-			fi
-		elif grep -q noretpoline_setup "$vmlinux"; then
-			# if we don't have nm, nevermind, the symbol name is long enough to not have
-			# any false positive using good old grep directly on the binary
-			retpoline_compiler=1
-			pstatus green YES "noretpoline_setup found in vmlinux"
-		else
-			pstatus red NO
-		fi
-	else
-		pstatus yellow UNKNOWN "couldn't find your kernel image or System.map"
-	fi
-
-	if ! is_cpu_vulnerable 2; then
-		pvulnstatus CVE-2017-5715 OK "your CPU vendor reported your CPU model as not vulnerable"
-	elif [ "$retpoline" = 1 -a "$retpoline_compiler" = 1 ]; then
-		pvulnstatus CVE-2017-5715 OK "retpoline mitigate the vulnerability"
-	elif [ "$opt_live" = 1 ]; then
-		if [ "$ibrs_enabled" = 1 -o "$ibrs_enabled" = 2 ]; then
-			pvulnstatus CVE-2017-5715 OK "IBRS mitigates the vulnerability"
-		else
-			pvulnstatus CVE-2017-5715 VULN "IBRS hardware + kernel support OR kernel with retpoline are needed to mitigate the vulnerability"
-		fi
-	else
-		if [ "$ibrs_supported" = 1 ]; then
-			pvulnstatus CVE-2017-5715 OK "offline mode: IBRS will mitigate the vulnerability if enabled at runtime"
-		else
-			pvulnstatus CVE-2017-5715 VULN "IBRS hardware + kernel support OR kernel with retpoline are needed to mitigate the vulnerability"
-		fi
-	fi
-}
-
-########################
-# MELTDOWN aka VARIANT 3
-check_variant3()
-{
-	_info "\033[1;34mCVE-2017-5754 [rogue data cache load] aka 'Meltdown' aka 'Variant 3'\033[0m"
-	_info_nol "* Kernel supports Page Table Isolation (PTI): "
-	kpti_support=0
-	kpti_can_tell=0
-	if [ -n "$opt_config" ]; then
-		kpti_can_tell=1
-		if grep -Eq '^(CONFIG_PAGE_TABLE_ISOLATION|CONFIG_KAISER)=y' "$opt_config"; then
-			kpti_support=1
-		fi
-	fi
-	if [ "$kpti_support" = 0 -a -n "$opt_map" ]; then
-		# it's not an elif: some backports don't have the PTI config but still include the patch
-		# so we try to find an exported symbol that is part of the PTI patch in System.map
-		kpti_can_tell=1
-		if grep -qw kpti_force_enabled "$opt_map"; then
-			kpti_support=1
-		fi
-	fi
-	if [ "$kpti_support" = 0 -a -n "$vmlinux" ]; then
-		# same as above but in case we don't have System.map and only vmlinux, look for the
-		# nopti option that is part of the patch (kernel command line option)
-		kpti_can_tell=1
-		if ! which strings >/dev/null 2>&1; then
-			pstatus yellow UNKNOWN "missing 'strings' tool, please install it, usually it's in the binutils package"
-		else
-			if strings "$vmlinux" | grep -qw nopti; then
-				kpti_support=1
-			fi
-		fi
-	fi
-
-	if [ "$kpti_support" = 1 ]; then
-		pstatus green YES
-	elif [ "$kpti_can_tell" = 1 ]; then
-		pstatus red NO
-	else
-		pstatus yellow UNKNOWN "couldn't read your kernel configuration nor System.map file"
-	fi
-
-	mount_debugfs
-	_info_nol "* PTI enabled and active: "
-	if [ "$opt_live" = 1 ]; then
-		if grep ^flags /proc/cpuinfo | grep -qw pti; then
-			# vanilla PTI patch sets the 'pti' flag in cpuinfo
-			kpti_enabled=1
-		elif grep ^flags /proc/cpuinfo | grep -qw kaiser; then
-			# kernel line 4.9 sets the 'kaiser' flag in cpuinfo
-			kpti_enabled=1
-		elif [ -e /sys/kernel/debug/x86/pti_enabled ]; then
-			# RedHat Backport creates a dedicated file, see https://access.redhat.com/articles/3311301
-			kpti_enabled=$(cat /sys/kernel/debug/x86/pti_enabled 2>/dev/null)
-		elif dmesg | grep -Eq 'Kernel/User page tables isolation: enabled|Kernel page table isolation enabled'; then
-			# if we can't find the flag, grep dmesg output
-			kpti_enabled=1
-		elif [ -r /var/log/dmesg ] && grep -Eq 'Kernel/User page tables isolation: enabled|Kernel page table isolation enabled' /var/log/dmesg; then
-			# if we can't find the flag in dmesg output, grep in /var/log/dmesg when readable
-			kpti_enabled=1
-		else
-			kpti_enabled=0
-		fi
-		if [ "$kpti_enabled" = 1 ]; then
-			pstatus green YES
-		else
-			pstatus red NO
-		fi
-	else
-		pstatus blue N/A "can't verify if PTI is enabled in offline mode"
-	fi
-
-	if ! is_cpu_vulnerable 3; then
-		pvulnstatus CVE-2017-5754 OK "your CPU vendor reported your CPU model as not vulnerable"
-	elif [ "$opt_live" = 1 ]; then
-		if [ "$kpti_enabled" = 1 ]; then
-			pvulnstatus CVE-2017-5754 OK "PTI mitigates the vulnerability"
-		else
-			pvulnstatus CVE-2017-5754 VULN "PTI is needed to mitigate the vulnerability"
-		fi
-	else
-		if [ "$kpti_support" = 1 ]; then
-			pvulnstatus CVE-2017-5754 OK "offline mode: PTI will mitigate the vulnerability if enabled at runtime"
-		else
-			pvulnstatus CVE-2017-5754 VULN "PTI is needed to mitigate the vulnerability"
-		fi
-	fi
-}
-
-# now run the checks the user asked for
-if [ "$opt_variant1" = 1 -o "$opt_allvariants" = 1 ]; then
-	check_variant1
-	_info
-fi
-if [ "$opt_variant2" = 1 -o "$opt_allvariants" = 1 ]; then
-	check_variant2
-	_info
-fi
-if [ "$opt_variant3" = 1 -o "$opt_allvariants" = 1 ]; then
-	check_variant3
-	_info
-fi
-
-_info "A false sense of security is worse than no security at all, see --disclaimer"
-
-# this'll umount only if we mounted debugfs ourselves
-umount_debugfs
-
-# cleanup the temp decompressed config
-[ -n "$dumped_config" ] && rm -f "$dumped_config"
-
-if [ "$opt_batch" = 1 -a "$opt_batch_format" = "nrpe" ]; then
-	if [ ! -z "$nrpe_vuln" ]; then
-		echo "Vulnerable:$nrpe_vuln"
-	else
-		echo "OK"
-	fi
-	[ "$nrpe_critical" = 1 ] && exit 2  # critical
-	[ "$nrpe_unknown" = 1 ] && exit 3  # unknown
-	exit 0  # ok
-fi

state/seen.json.bootstrap

@@ -0,0 +1,824 @@
+{
+  "aliases": {
+    "CVE-2018-3615": "CVE-2018-3646",
+    "CVE-2018-3620": "CVE-2018-3646",
+    "CVE-2025-54505": "https://www.phoronix.com/news/AMD-FP-DSS-Zen-1-Bug",
+    "CVE-2026-33691": "https://seclists.org/oss-sec/2026/q2/175",
+    "CVE-2026-41113": "https://seclists.org/oss-sec/2026/q2/176",
+    "CVE-2026-4519": "CVE-2026-4786",
+    "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33055": "CVE-2026-33055",
+    "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33056": "CVE-2026-33056",
+    "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-4786": "CVE-2026-4786",
+    "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-5160": "CVE-2026-5160",
+    "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-6100": "CVE-2026-6100",
+    "https://seclists.org/oss-sec/2026/q2/173": "CVE-2026-33691",
+    "https://seclists.org/oss-sec/2026/q2/176": "CVE-2026-41113",
+    "https://transient.fail/": "CVE-2019-11091"
+  },
+  "last_run": "2026-04-19T14:06:07.928573+00:00",
+  "schema_version": 2,
+  "seen": {
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