CVE-2026-46074
In the Linux kernel, the following vulnerability has been resolved: spi: ch341: fix memory leaks on probe failures Make sure to deregister the controller, disable pins, and kill and free the RX URB on probe failures to mirror disconnect and avoid memory leaks and use-after-free. Also add an explicit URB kill on disconnect for symmetry (even if that is not strictly required as USB core would have stopped it in the current setup).
Affected versions
Linux kernel versions
6.11
and later are affected. Fixed in
6.12.86,
6.18.27,
7.0.4,
7.1-rc1
and their respective stable series.
References
The following references provide additional information about CVE-2026-46074 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/5c6518633702d7f7b1153e9d8e042af847f11ef3
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PatchKernel patch commithttps://git.kernel.org/stable/c/9bee2faf9e21c796d0d222c9d84a98f41bd303a0
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PatchKernel patch commithttps://git.kernel.org/stable/c/b99e3ddb91b499d920e63a2daff8880be68cfe9e
Frequently asked questions
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What is CVE-2026-46074?
CVE-2026-46074 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.11 onward and has been patched in 6.12.86, 6.18.27, 7.0.4 and others. CVE-2026-46074 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-2026-46074?
Yes — CVE-2026-46074 has been patched. Fixed versions include 6.12.86, 6.18.27, 7.0.4 and others. If you are running Linux kernel 6.11 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-46074 actively exploited?
No — CVE-2026-46074 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.