Linux Kernel: ALSA USB-Audio Driver Null Deref via Scarlett2 quirk
CVE-2026-43436 Published on May 8, 2026

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.

NVD


Products Associated with CVE-2026-43436

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Affected Versions

Linux: Linux: