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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 0.13% probability · 3th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/2f7ae8ab6aa73daaf080d5332110357c29df9c36Patch
- https://git.kernel.org/stable/c/47bc7a03449c39805bc2665d3e57c73195d5bcf8Patch
- https://git.kernel.org/stable/c/9ed9b580a814773482c0a4f1be045636e68cc109Patch
- https://git.kernel.org/stable/c/a0780aeea166a7cf4706c45af4cadbb2a43a1fc9Patch
- https://git.kernel.org/stable/c/dbfcb09656cb30439577325c9dea2250203c2e3cPatch
- https://git.kernel.org/stable/c/f24efd415455b98a1f1cfc6071fe6fde71986706Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.