1.5 KiB
| id | status | status_updated | status_note | component | severity | timestamp | last_seen | occurrences | files | tags | related | fix_commits | legacy | gitea_issue | gitea_synced_status | gitea_synced_hash | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| bug-1861 | fixed | 2026-09-25 | b5d59253 |
controller | unknown | 2026-09-24T15:05:56Z | 2026-09-24T15:05:56Z | 1 |
|
|
|
true | 280 | fixed | 06b29e927501 |
bug-1861: config_repl.c do_upgrade_config_with_bytes: temp decode file…
Description
config_repl.c do_upgrade_config_with_bytes: temp decode file /tmp/xce_upgrade_cfg.<pthread_self()>.tmp -- the name is identical across processes (parallel controller_unit_test instances failed handle_upgrade_config with -EINVAL, 'a majority-acked upgrade must succeed') and is opened O_CREAT|O_TRUNC without O_EXCL in world-writable /tmp
Environment
Not recorded (migrated from buglog.json).
Reproduction
Not recorded (migrated from buglog.json).
Root cause
pthread_self() is a thread-descriptor address, not a unique id: the main thread's value repeats across processes (esp. with ASLR off under ASAN), so two processes on one host share and clobber the file; a predictable name opened without O_EXCL in /tmp is also a symlink-attack target (write/truncate through an attacker's link).
Fix
Not recorded (migrated from buglog.json).
Verification
Not recorded (migrated from buglog.json).
References
- Gitea: #280