CVE-2026-46090
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
ALSA: aloop: Fix peer runtime UAF during format-change stop
In the Linux kernel, the following vulnerability has been resolved: ALSA: aloop: Fix peer runtime UAF during format-change stop loopback_check_format() may stop the capture side when playback starts with parameters that no longer match a running capture stream. Commit 826af7fa62e3 ("ALSA: aloop: Fix racy access at PCM trigger") moved the peer lookup under cable->lock, but the actual snd_pcm_stop() still runs after dropping that lock. A concurrent close can clear the capture entry from cable->streams[] and detach or free its runtime while the playback trigger path still holds a stale peer substream pointer. Keep a per-cable count of in-flight peer stops before dropping cable->lock, and make free_cable() wait for those stops before detaching the runtime. This preserves the existing behavior while making the peer runtime lifetime explicit.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 597603d615d2b19a9e451d8cfac24372856a522d | affected | git | 83bd62fa9620ac98d5d694bde14c50f98c8e7189 | Unavailable | None listed |
| 597603d615d2b19a9e451d8cfac24372856a522d | affected | git | 345c24b2bcf0923dfae1ab41497351c68214ff76 | Unavailable | None listed |
| 597603d615d2b19a9e451d8cfac24372856a522d | affected | git | 3727a3541788412c393eec236ad228d72efe19c7 | Unavailable | None listed |
| 597603d615d2b19a9e451d8cfac24372856a522d | affected | git | d258cdce50ff3e02392917258e81a0ce9555c327 | Unavailable | None listed |
| 597603d615d2b19a9e451d8cfac24372856a522d | affected | git | 03f52a9c170431e8f10e156b9dc0dae80b3e9198 | Unavailable | None listed |
| 597603d615d2b19a9e451d8cfac24372856a522d | affected | git | bdd9503c3d222d2735b56c7a8b4422ccf3de6e5c | Unavailable | None listed |
| 597603d615d2b19a9e451d8cfac24372856a522d | affected | git | 5d45e34bf001344e2966dabca1897561bbc9e913 | Unavailable | None listed |
| 597603d615d2b19a9e451d8cfac24372856a522d | affected | git | e5c33cdc6f402eab8abd36ecf436b22c9d3a8aff | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.37 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.37 | Unavailable | None listed |
| 5.10.259 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.210 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.188 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.157 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.88 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.27 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.0.4 | unaffected | semver | Unavailable | 7.0.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |