CVE-2026-46146ALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3()
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 786571b10b1ae6d90e1242848ce78ee7e1d493c4 builds before 076d5d13eb9c1ad259a7f246149f6676c62285f9; from 275e37532e8ebe25e8a4069b2d9f955bfd202a46 before 316aa0b1e3c5600eae5ab876394c1ac70e6db581; 47ab3d820cb0a502bd0074f83bb3cf7ab5d79902 builds before 24a40df79307ca7ca0eec0889361cf6ac146d72a; from 1034719fdefd26caeec0a44a868bb5a412c2c1a5 before e0e3dcf48189603f3865f1a0b799b3b42baae96d; from ae17b3b5e753efc239421d186cd1ff06e5ac296e before 4e0ee232ebe3df04874125d7c7f3e6c25ea5483d; from ecfd41166b72b67d3bdeb88d224ff445f6163869 before be09b47ed8677d76962e3240c145502e2ad9f3c8; from ecfd41166b72b67d3bdeb88d224ff445f6163869 before fa5b19ce69067874b1413f3c2027563bae8c2cb3; from ecfd41166b72b67d3bdeb88d224ff445f6163869 before 6e7247d8f5fefeceb0bb9cc80a5388a636b219cd; and 11 more ranges | CNA record |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | all versions | CISA ADP |
linux linux_kernel linux:linux_kernel | from 5.4.297 before 5.5; from 5.10.241 before 5.10.258; from 5.15.190 before 5.15.209; from 6.1.149 before 6.1.175; from 6.6.103 before 6.6.140; from 6.12.43 before 6.12.88; from 6.15.11 before 6.16; from 6.16.2 before 6.17; and 10 more ranges | NVD |
References
- https://git.kernel.org/stable/c/076d5d13eb9c1ad259a7f246149f6676c62285f9patch
- https://git.kernel.org/stable/c/316aa0b1e3c5600eae5ab876394c1ac70e6db581patch
- https://git.kernel.org/stable/c/24a40df79307ca7ca0eec0889361cf6ac146d72apatch
- https://git.kernel.org/stable/c/e0e3dcf48189603f3865f1a0b799b3b42baae96dpatch
- https://git.kernel.org/stable/c/4e0ee232ebe3df04874125d7c7f3e6c25ea5483dpatch
- https://git.kernel.org/stable/c/be09b47ed8677d76962e3240c145502e2ad9f3c8patch
- https://git.kernel.org/stable/c/fa5b19ce69067874b1413f3c2027563bae8c2cb3patch
- https://git.kernel.org/stable/c/6e7247d8f5fefeceb0bb9cc80a5388a636b219cdpatch
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.