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.
Affected products
linux: linux kernel
References6
- git.kernel.org/stable/c/3d4f23885e4b90347c9a1d779af6e79a99b5172a Patch
- git.kernel.org/stable/c/3d542cf3c4c854cdf5d58049771f68926b9eb2b9 Patch
- git.kernel.org/stable/c/b014cc945baba75816cda0cf8934be87c9ed4947 Patch
- git.kernel.org/stable/c/b267255c15d2a5b90c4e926146aa155e5161e264 Patch
- git.kernel.org/stable/c/c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34ba Patch
- git.kernel.org/stable/c/df1d8abf36ca3681c21a6809eaa9a1e01ef897a6 Patch
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 2 · as of 13 November 2026
- CWE
- CWE-476
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