Riskcovery

CVE-2026-43436

ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces

State
Published
Severity
Not scored
Published
May 8, 2026
Updated
May 11, 2026
Reserved
May 1, 2026

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 6c0a2078134aba6a77291554035304df9e16b85c to before b014cc945baba75816cda0cf8934be87c9ed4947Affected
  • 6c0a2078134aba6a77291554035304df9e16b85c to before c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34baAffected
  • 6c0a2078134aba6a77291554035304df9e16b85c to before b267255c15d2a5b90c4e926146aa155e5161e264Affected
  • 6c0a2078134aba6a77291554035304df9e16b85c to before 3d542cf3c4c854cdf5d58049771f68926b9eb2b9Affected
  • 6c0a2078134aba6a77291554035304df9e16b85c to before 3d4f23885e4b90347c9a1d779af6e79a99b5172aAffected
  • 6c0a2078134aba6a77291554035304df9e16b85c to before df1d8abf36ca3681c21a6809eaa9a1e01ef897a6Affected
LinuxLinux
  • 5.14Affected
  • before 5.14Not affected
  • 6.1.167 through 6.1.*Not affected
  • 6.6.130 through 6.6.*Not affected
  • 6.12.78 through 6.12.*Not affected
  • 6.18.19 through 6.18.*Not affected
  • 6.19.9 through 6.19.*Not affected
  • 7.0 and laterNot affected

References

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