myxce/.wolf/bugs/bug-007.md
Rongsong Shen d26ff8870d
feat(buglog): one Markdown record per bug, checked against a record standard
The buglog was one 27K-line JSON file whose fields covered only symptom,
root cause and fix, as free text: 2% of entries named the code version a
bug was found on, 12% the build profile, 36% a way to reproduce, and 58% of
the file was OpenWolf hook auto-detections ("Missing guard clause",
"Function not marked async" on .md files).

- .claude/skills/buglog/bug-record.md: the record standard. Eight
  sections (Summary as the title, Description, Environment, Reproduction;
  Root cause, Fix, Verification, References once fixed), each with the
  content it must contain -- e.g. Environment needs the OS, the libc the
  failing binary loads (from its ELF interpreter: glibc 2.42 in the nix
  shell vs 2.40 on the host), toolchain, build profile and commit.
- .wolf/bugs/<id>.md: 500 records migrated from buglog.json; every field
  verified to round-trip. They carry legacy: true and an explicit "not
  recorded" where the old log had no such field; component derived from
  file paths, severity from keywords (else unknown), fix_commits from
  hashes in status_note/fix that git resolves (91 of 463 fixed).
- .wolf/buglog-archive.json: the 710 hook auto-detections, verbatim.
- .wolf/buglog.json is now an index generated from the records, keeping
  the fields OpenWolf's hooks and `openwolf bug search` read.
- scripts/buglog.py rewritten: new (template + Environment collected from
  the machine and --binary), check, status (refuses a status the record
  doesn't support; fixed needs Root cause, Fix, Verification and
  --commit hashes git resolves), note, recur, set, show, list, triage,
  env, index. 29 unittest cases in scripts/tests/test_buglog.py.
- scripts/git-hooks/pre-commit runs `check --staged`: incomplete staged
  records, a legacy record hand-changed to fixed without the fix-time
  sections, a new record claiming legacy: true, or a stale index refuse
  the commit.
- scripts/gitea-sync.py reads the records: issue body = the record's
  sections plus linked fix commits (origin remote, GITEA_COMMIT_REPO to
  override), and a body hash so an issue's text is refreshed when the
  record changes.
- bug-1866 rewritten to the full standard as the worked example.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-09-28 03:40:11 +00:00

1.3 KiB

id status status_updated status_note component severity timestamp last_seen occurrences files tags related legacy
bug-007 fixed 2026-09-24 controller crash 2026-05-21T12:53:13.789Z 2026-09-19T09:00:00Z 2
src/controller/ha.c
guard-clause
c
heap-use-after-free
asan
liveness_poll_fn
ha_arm_heartbeat_timeout_vtask
race-condition
integration-test
true

bug-007: AddressSanitizer: heap-use-after-free in liveness_poll_fn at ha.c:3293 — reading ctx->cancelled…

Description

AddressSanitizer: heap-use-after-free in liveness_poll_fn at ha.c:3293 — reading ctx->cancelled after ha_arm_heartbeat_timeout_vtask freed the old ctx

Environment

Not recorded (migrated from buglog.json).

Reproduction

Not recorded (migrated from buglog.json).

Root cause

ha_arm_heartbeat_timeout_vtask freed the old liveness_poll_ctx_t immediately after setting cancelled=1, but the delaymgr task was already in flight reading ctx->cancelled=0 and then continued to read ctx->ha after free

Fix

ha_arm_heartbeat_timeout_vtask no longer frees old ctx; liveness_poll_fn now frees ctx when it fires with cancelled=1 (guarded by #ifndef XCE_TESTING to avoid bad-free on stack-allocated test ctxs)

Verification

Not recorded (migrated from buglog.json).

References

Not recorded (migrated from buglog.json).