CVE-2026-46136
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: fix a potential clc buffer length underflow The buf_len is used to limit the iterations for retrieving the country power setting and may underflow under certain conditions due to changes in the power table in CLC. This underflow leads to an almost infinite loop or an invalid power setting resulting in driver initialization failure.
Affected versions
Linux kernel versions
6.1.75,
6.6.14,
6.7.2,
6.8
and later are affected. Fixed in
6.1.175,
6.6.140,
6.12.88,
6.18.30,
7.0.7,
7.1-rc1
and their respective stable series.
References
The following references provide additional information about CVE-2026-46136 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/0aa63d33742b805d1a218d18d12b983cce4b2f7b
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PatchKernel patch commithttps://git.kernel.org/stable/c/2a79b1a492bcfa725383b6580cd93a6862308c85
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PatchKernel patch commithttps://git.kernel.org/stable/c/5373f8b19e568b5c217832b9bbef165bd2b2df14
Frequently asked questions
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What is CVE-2026-46136?
CVE-2026-46136 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.1.75 onward and has been patched in 6.1.175, 6.6.140, 6.12.88 and others. CVE-2026-46136 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-2026-46136?
Yes — CVE-2026-46136 has been patched. Fixed versions include 6.1.175, 6.6.140, 6.12.88 and others. If you are running Linux kernel 6.1.75 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-46136 actively exploited?
No — CVE-2026-46136 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.