CVE-2026-43436
ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces The Scarlett2 mixer quirk in USB-audio driver may hit a NULL dereference when a malformed USB descriptor is passed, since it assumes the presence of an endpoint in the parsed interface in scarlett2_find_fc_interface(), as reported by fuzzer. For avoiding the NULL dereference, just add the sanity check of bNumEndpoints and skip the invalid interface.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Linux Linux |
≥ 6c0a2078134aba6a77291554035304df9e16b85c; < b014cc945baba75816cda0cf8934be87c9ed4947 (affected, git) ≥ 6c0a2078134aba6a77291554035304df9e16b85c; < c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34ba (affected, git) ≥ 6c0a2078134aba6a77291554035304df9e16b85c; < b267255c15d2a5b90c4e926146aa155e5161e264 (affected, git) ≥ 6c0a2078134aba6a77291554035304df9e16b85c; < 3d542cf3c4c854cdf5d58049771f68926b9eb2b9 (affected, git) ≥ 6c0a2078134aba6a77291554035304df9e16b85c; < 3d4f23885e4b90347c9a1d779af6e79a99b5172a (affected, git) ≥ 6c0a2078134aba6a77291554035304df9e16b85c; < df1d8abf36ca3681c21a6809eaa9a1e01ef897a6 (affected, git) Other versions: unaffected |
CNA: Linux |
| Linux Linux |
5.14 (affected) ≥ 0; < 5.14 (unaffected, semver) ≥ 6.1.167; ≤ 6.1.* (unaffected, semver) ≥ 6.6.130; ≤ 6.6.* (unaffected, semver) ≥ 6.12.78; ≤ 6.12.* (unaffected, semver) ≥ 6.18.19; ≤ 6.18.* (unaffected, semver) ≥ 6.19.9; ≤ 6.19.* (unaffected, semver) ≥ 7.0; ≤ * (unaffected, original_commit_for_fix) Other versions: affected |
CNA: Linux |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://git.kernel.org/stable/c/b014cc945baba75816cda0cf8934be87c9ed4947CNA: Linux
- https://git.kernel.org/stable/c/c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34baCNA: Linux
- https://git.kernel.org/stable/c/b267255c15d2a5b90c4e926146aa155e5161e264CNA: Linux
- https://git.kernel.org/stable/c/3d542cf3c4c854cdf5d58049771f68926b9eb2b9CNA: Linux
- https://git.kernel.org/stable/c/3d4f23885e4b90347c9a1d779af6e79a99b5172aCNA: Linux
- https://git.kernel.org/stable/c/df1d8abf36ca3681c21a6809eaa9a1e01ef897a6CNA: Linux
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