CVE-2026-46293

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinuxd39fb172760e426e0628f16b785c85e16d17bd5e < 9ed9b580a814773482c0a4f1be045636e68cc109affected
LinuxLinuxd39fb172760e426e0628f16b785c85e16d17bd5e < 47bc7a03449c39805bc2665d3e57c73195d5bcf8affected
LinuxLinuxd39fb172760e426e0628f16b785c85e16d17bd5e < dbfcb09656cb30439577325c9dea2250203c2e3caffected
LinuxLinuxd39fb172760e426e0628f16b785c85e16d17bd5e < a0780aeea166a7cf4706c45af4cadbb2a43a1fc9affected
LinuxLinuxd39fb172760e426e0628f16b785c85e16d17bd5e < f24efd415455b98a1f1cfc6071fe6fde71986706affected
LinuxLinuxd39fb172760e426e0628f16b785c85e16d17bd5e < 2f7ae8ab6aa73daaf080d5332110357c29df9c36affected
LinuxLinux6.1affected
LinuxLinux0 < 6.1unaffected
LinuxLinux6.1.175 <= 6.1.*unaffected
LinuxLinux6.6.140 <= 6.6.*unaffected
LinuxLinux6.12.88 <= 6.12.*unaffected
LinuxLinux6.18.30 <= 6.18.*unaffected
LinuxLinux7.0.7 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References