CVE-2026-46146

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

At a glance

Severity
Not available
EPSS
EPSS 0.13 % · percentile 3 (2026-10-27)
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

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

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 786571b10b1ae6d90e1242848ce78ee7e1d493c4 < 076d5d13eb9c1ad259a7f246149f6676c62285f9 ; affected 275e37532e8ebe25e8a4069b2d9f955bfd202a46 < 316aa0b1e3c5600eae5ab876394c1ac70e6db581 ; affected 47ab3d820cb0a502bd0074f83bb3cf7ab5d79902 < 24a40df79307ca7ca0eec0889361cf6ac146d72a ; affected 1034719fdefd26caeec0a44a868bb5a412c2c1a5 < e0e3dcf48189603f3865f1a0b799b3b42baae96d ; affected ae17b3b5e753efc239421d186cd1ff06e5ac296e < 4e0ee232ebe3df04874125d7c7f3e6c25ea5483d ; affected ecfd41166b72b67d3bdeb88d224ff445f6163869 < be09b47ed8677d76962e3240c145502e2ad9f3c8
Linux · Linuxaffected 6.17 ; unaffected 0 < 6.17 ; unaffected 5.10.258 ≤ 5.10.* ; unaffected 5.15.209 ≤ 5.15.* ; unaffected 6.1.175 ≤ 6.1.* ; unaffected 6.6.140 ≤ 6.6.*

References

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD