CVE-2026-46146
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.
Affected versions
Linux kernel versions
5.10.241,
5.15.190,
6.1.149,
6.6.103,
6.12.43,
5.4.297,
6.15.11,
6.16.2,
6.17
and later are affected. Fixed in
5.10.258,
5.15.209,
6.1.175,
6.6.140,
6.12.88,
6.18.30,
7.0.7,
7.1-rc2
and their respective stable series.
References
The following references provide additional information about CVE-2026-46146 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/076d5d13eb9c1ad259a7f246149f6676c62285f9
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PatchKernel patch commithttps://git.kernel.org/stable/c/24a40df79307ca7ca0eec0889361cf6ac146d72a
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PatchKernel patch commithttps://git.kernel.org/stable/c/316aa0b1e3c5600eae5ab876394c1ac70e6db581
Frequently asked questions
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What is CVE-2026-46146?
CVE-2026-46146 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.10.241 onward and has been patched in 5.10.258, 5.15.209, 6.1.175 and others. CVE-2026-46146 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-46146?
Yes — CVE-2026-46146 has been patched. Fixed versions include 5.10.258, 5.15.209, 6.1.175 and others. If you are running Linux kernel 5.10.241 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-46146 actively exploited?
No — CVE-2026-46146 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.