CVE-2026-46293 is a vulnerability in Linux Kernel
Published on June 8, 2026
clk: microchip: mpfs-ccc: fix out of bounds access during output registration
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.
Products Associated with CVE-2026-46293
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Affected Versions
Linux:- Version d39fb172760e426e0628f16b785c85e16d17bd5e and below 9ed9b580a814773482c0a4f1be045636e68cc109 is affected.
- Version d39fb172760e426e0628f16b785c85e16d17bd5e and below 47bc7a03449c39805bc2665d3e57c73195d5bcf8 is affected.
- Version d39fb172760e426e0628f16b785c85e16d17bd5e and below dbfcb09656cb30439577325c9dea2250203c2e3c is affected.
- Version d39fb172760e426e0628f16b785c85e16d17bd5e and below a0780aeea166a7cf4706c45af4cadbb2a43a1fc9 is affected.
- Version d39fb172760e426e0628f16b785c85e16d17bd5e and below f24efd415455b98a1f1cfc6071fe6fde71986706 is affected.
- Version d39fb172760e426e0628f16b785c85e16d17bd5e and below 2f7ae8ab6aa73daaf080d5332110357c29df9c36 is affected.
- Version 6.1 is affected.
- Before 6.1 is unaffected.
- Version 6.1.175, <= 6.1.* is unaffected.
- Version 6.6.140, <= 6.6.* is unaffected.
- Version 6.12.88, <= 6.12.* is unaffected.
- Version 6.18.30, <= 6.18.* is unaffected.
- Version 7.0.7, <= 7.0.* is unaffected.
- Version 7.1-rc1, <= * is unaffected.