Riskcovery

CVE-2026-46146

ALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3()

State
Published
Severity
Not scored
Published
May 28, 2026
Updated
Oct 15, 2026
Reserved
May 13, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

ALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3()

The convert_chmap_v3() has a loop with its increment size of cs_desc->wLength, but we forgot to validate cs_desc->wLength itself, which may lead to potential endless loop by a malformed descriptor.

Add a proper size check to abort the loop for plugging the hole.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 786571b10b1ae6d90e1242848ce78ee7e1d493c4 to before 076d5d13eb9c1ad259a7f246149f6676c62285f9Affected
  • 275e37532e8ebe25e8a4069b2d9f955bfd202a46 to before 316aa0b1e3c5600eae5ab876394c1ac70e6db581Affected
  • 47ab3d820cb0a502bd0074f83bb3cf7ab5d79902 to before 24a40df79307ca7ca0eec0889361cf6ac146d72aAffected
  • 1034719fdefd26caeec0a44a868bb5a412c2c1a5 to before e0e3dcf48189603f3865f1a0b799b3b42baae96dAffected
  • ae17b3b5e753efc239421d186cd1ff06e5ac296e to before 4e0ee232ebe3df04874125d7c7f3e6c25ea5483dAffected
  • ecfd41166b72b67d3bdeb88d224ff445f6163869 to before be09b47ed8677d76962e3240c145502e2ad9f3c8Affected
  • ecfd41166b72b67d3bdeb88d224ff445f6163869 to before fa5b19ce69067874b1413f3c2027563bae8c2cb3Affected
  • ecfd41166b72b67d3bdeb88d224ff445f6163869 to before 6e7247d8f5fefeceb0bb9cc80a5388a636b219cdAffected
  • 799c06ad4c9c790c265e8b6b94947213f1fb389cAffected
  • dfdcbcde5c20df878178245d4449feada7d5b201Affected
  • 7ef3fd250f84494fb2f7871f357808edaa1fc6ceAffected
  • 5.10.241 to before 5.10.258Affected
  • 5.15.190 to before 5.15.209Affected
  • 6.1.149 to before 6.1.175Affected
  • 6.6.103 to before 6.6.140Affected
  • 6.12.43 to before 6.12.88Affected
  • 5.4.297 to before 5.5Affected
  • 6.15.11 to before 6.16Affected
  • 6.16.2 to before 6.17Affected
LinuxLinux
  • 6.17Affected
  • before 6.17Not affected
  • 5.10.258 through 5.10.*Not affected
  • 5.15.209 through 5.15.*Not affected
  • 6.1.175 through 6.1.*Not affected
  • 6.6.140 through 6.6.*Not affected
  • 6.12.88 through 6.12.*Not affected
  • 6.18.30 through 6.18.*Not affected
  • 7.0.7 through 7.0.*Not affected
  • 7.1 and laterNot affected

References

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