CVE-2026-43436
MEDIUM severity · CVSS 5.5 · CWE-476
5.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/3d4f23885e4b90347c9a1d779af6e79a99b5172a ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/3d4f23885e4b90347c9a1d779af6e79a99b5172aPatch
- https://git.kernel.org/stable/c/3d542cf3c4c854cdf5d58049771f68926b9eb2b9Patch
- https://git.kernel.org/stable/c/b014cc945baba75816cda0cf8934be87c9ed4947Patch
- https://git.kernel.org/stable/c/b267255c15d2a5b90c4e926146aa155e5161e264Patch
- https://git.kernel.org/stable/c/c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34baPatch
- https://git.kernel.org/stable/c/df1d8abf36ca3681c21a6809eaa9a1e01ef897a6Patch