CVE-2026-46090
- Source
- https://cve.org/CVERecord?id=CVE-2026-46090
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-46090.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-46090
- Downstream
- Related
- Published
- 2026-05-27T12:58:34.428Z
- Modified
- 2026-06-24T18:29:21.968822688Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- ALSA: aloop: Fix peer runtime UAF during format-change stop
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ALSA: aloop: Fix peer runtime UAF during format-change stop
loopbackcheckformat() 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 sndpcmstop() 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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46090.json" }- References
-
- https://git.kernel.org/stable/c/03f52a9c170431e8f10e156b9dc0dae80b3e9198
- https://git.kernel.org/stable/c/345c24b2bcf0923dfae1ab41497351c68214ff76
- https://git.kernel.org/stable/c/5d45e34bf001344e2966dabca1897561bbc9e913
- https://git.kernel.org/stable/c/83bd62fa9620ac98d5d694bde14c50f98c8e7189
- https://git.kernel.org/stable/c/bdd9503c3d222d2735b56c7a8b4422ccf3de6e5c
- https://git.kernel.org/stable/c/e5c33cdc6f402eab8abd36ecf436b22c9d3a8aff
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46090.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-46090
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced597603d615d2b19a9e451d8cfac24372856a522dFixed83bd62fa9620ac98d5d694bde14c50f98c8e7189Fixed345c24b2bcf0923dfae1ab41497351c68214ff76Fixed03f52a9c170431e8f10e156b9dc0dae80b3e9198Fixedbdd9503c3d222d2735b56c7a8b4422ccf3de6e5cFixed5d45e34bf001344e2966dabca1897561bbc9e913Fixede5c33cdc6f402eab8abd36ecf436b22c9d3a8aff