CVE-2026-46146
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.
How to fix
- linux linux_kernel5.5, 5.10.258, 5.15.209, 6.1.175, 6.6.140, 6.12.88, 6.16, 6.17, 6.18.30, 7.0.7 or later
- git.kernel.org/stable/c/076d5d13eb9c1ad259a7f246149f6676c62285f9
- git.kernel.org/stable/c/24a40df79307ca7ca0eec0889361cf6ac146d72a
- git.kernel.org/stable/c/316aa0b1e3c5600eae5ab876394c1ac70e6db581
- git.kernel.org/stable/c/4e0ee232ebe3df04874125d7c7f3e6c25ea5483d
- git.kernel.org/stable/c/6e7247d8f5fefeceb0bb9cc80a5388a636b219cd
- git.kernel.org/stable/c/be09b47ed8677d76962e3240c145502e2ad9f3c8
- git.kernel.org/stable/c/e0e3dcf48189603f3865f1a0b799b3b42baae96d
- git.kernel.org/stable/c/fa5b19ce69067874b1413f3c2027563bae8c2cb3
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.4.297 ≤ v < 5.5, 5.10.241 ≤ v < 5.10.258, 5.15.190 ≤ v < 5.15.209, 6.1.149 ≤ v < 6.1.175, 6.6.103 ≤ v < 6.6.140, 6.12.43 ≤ v < 6.12.88, 6.15.11 ≤ v < 6.16, 6.16.2 ≤ v < 6.17, 6.17.1 ≤ v < 6.18.30, 6.19 ≤ v < 7.0.7, 6.17, 7.1 | 5.5, 5.10.258, 5.15.209, 6.1.175, 6.6.140, 6.12.88, 6.16, 6.17, 6.18.30, 7.0.7 |
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