CVE-2026-46293
In the Linux kernel, the following vulnerability has been resolved: clk: microchip: mpfs-ccc: fix out of bounds access during output registration UBSAN reported an out of bounds access during registration of the last two outputs. This out of bounds access occurs because space is only allocated in the hws array for two PLLs and the four output dividers that each has, but the defined IDs contain two DLLS and their two outputs each, which are not supported by the driver. The ID order is PLLs -> DLLs -> PLL outputs -> DLL outputs. Decrement the PLL output IDs by two while adding them to the array to avoid the problem.
Affected versions
Linux kernel versions
6.1
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-2026-46293 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/2f7ae8ab6aa73daaf080d5332110357c29df9c36
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PatchKernel patch commithttps://git.kernel.org/stable/c/47bc7a03449c39805bc2665d3e57c73195d5bcf8
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PatchKernel patch commithttps://git.kernel.org/stable/c/9ed9b580a814773482c0a4f1be045636e68cc109
Frequently asked questions
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What is CVE-2026-46293?
CVE-2026-46293 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.1 onward and has been patched in 6.1.175, 6.6.140, 6.12.88 and others. CVE-2026-46293 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-2026-46293?
Yes — CVE-2026-46293 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 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-46293 actively exploited?
No — CVE-2026-46293 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.