ALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3()
Summary
| CVE | CVE-2026-46146 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-05-28 10:16:30 UTC |
| Updated | 2026-05-28 13:44:01 UTC |
| 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. |
Risk And Classification
EPSS: 0.000180000 probability, percentile 0.051570000 (date 2026-05-30)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 1034719fdefd26caeec0a44a868bb5a412c2c1a5 e0e3dcf48189603f3865f1a0b799b3b42baae96d git | Not specified |
| CNA | Linux | Linux | affected ae17b3b5e753efc239421d186cd1ff06e5ac296e 4e0ee232ebe3df04874125d7c7f3e6c25ea5483d git | Not specified |
| CNA | Linux | Linux | affected ecfd41166b72b67d3bdeb88d224ff445f6163869 be09b47ed8677d76962e3240c145502e2ad9f3c8 git | Not specified |
| CNA | Linux | Linux | affected ecfd41166b72b67d3bdeb88d224ff445f6163869 fa5b19ce69067874b1413f3c2027563bae8c2cb3 git | Not specified |
| CNA | Linux | Linux | affected ecfd41166b72b67d3bdeb88d224ff445f6163869 6e7247d8f5fefeceb0bb9cc80a5388a636b219cd git | Not specified |
| CNA | Linux | Linux | affected 799c06ad4c9c790c265e8b6b94947213f1fb389c git | Not specified |
| CNA | Linux | Linux | affected 786571b10b1ae6d90e1242848ce78ee7e1d493c4 git | Not specified |
| CNA | Linux | Linux | affected 275e37532e8ebe25e8a4069b2d9f955bfd202a46 git | Not specified |
| CNA | Linux | Linux | affected 47ab3d820cb0a502bd0074f83bb3cf7ab5d79902 git | Not specified |
| CNA | Linux | Linux | affected dfdcbcde5c20df878178245d4449feada7d5b201 git | Not specified |
| CNA | Linux | Linux | affected 7ef3fd250f84494fb2f7871f357808edaa1fc6ce git | Not specified |
| CNA | Linux | Linux | affected 6.6.103 6.6.140 semver | Not specified |
| CNA | Linux | Linux | affected 6.12.43 6.12.88 semver | Not specified |
| CNA | Linux | Linux | affected 5.4.297 5.5 semver | Not specified |
| CNA | Linux | Linux | affected 5.10.241 5.11 semver | Not specified |
| CNA | Linux | Linux | affected 5.15.190 5.16 semver | Not specified |
| CNA | Linux | Linux | affected 6.1.149 6.2 semver | Not specified |
| CNA | Linux | Linux | affected 6.15.11 6.16 semver | Not specified |
| CNA | Linux | Linux | affected 6.16.2 6.17 semver | Not specified |
| CNA | Linux | Linux | affected 6.17 | Not specified |
| CNA | Linux | Linux | unaffected 6.17 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.140 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.88 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.30 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.0.7 7.0.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1-rc2 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/e0e3dcf48189603f3865f1a0b799b3b42baae96d | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/6e7247d8f5fefeceb0bb9cc80a5388a636b219cd | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/be09b47ed8677d76962e3240c145502e2ad9f3c8 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/fa5b19ce69067874b1413f3c2027563bae8c2cb3 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/4e0ee232ebe3df04874125d7c7f3e6c25ea5483d | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.