CVE-2026-43436

Description

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.

References

• https://git.kernel.org/stable/c/3d4f23885e4b90347c9a1d779af6e79a99b5172a
• https://git.kernel.org/stable/c/3d542cf3c4c854cdf5d58049771f68926b9eb2b9
• https://git.kernel.org/stable/c/b014cc945baba75816cda0cf8934be87c9ed4947
• https://git.kernel.org/stable/c/b267255c15d2a5b90c4e926146aa155e5161e264
• https://git.kernel.org/stable/c/c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34ba