CVE-2026-43436
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…
Does this matter?
Lower severity and a low EPSS score (0.12%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.12% probability · 2th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.