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Review reviewHigh

CVE-2026-46293

Linux Linux, linux kernel

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 arr...

CVSS
7.1
EPSS
0.13%
2.66% percentile
CISA KEV
Not listed
Published
2026.06.09
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.13%
Technical severityCVSS 7.1

Vulnerability overview

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 arr...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= d39fb172760e426e0628f16b785c85e16d17bd5e < 9ed9b580a814773482c0a4f1be045636e68cc109, >= d39fb172760e426e0628f16b785c85e16d17bd5e < 47bc7a03449c39805bc2665d3e57c73195d5bcf8, >= d39fb172760e426e0628f16b785c85e16d17bd5e < dbfcb09656cb30439577325c9dea2250203c2e3c, >= d39fb172760e426e0628f16b785c85e16d17bd5e < a0780aeea166a7cf4706c45af4cadbb2a43a1fc9, >= d39fb172760e426e0628f16b785c85e16d17bd5e < f24efd415455b98a1f1cfc6071fe6fde71986706, >= d39fb172760e426e0628f16b785c85e16d17bd5e < 2f7ae8ab6aa73daaf080d5332110357c29df9c36, >= 6.1, >= 6.1 < 6.1.175, >= 6.2 < 6.6.140, >= 6.7 < 6.12.88, >= 6.13 < 6.18.30, >= 6.19 < 7.0.7
Fixed versions
6.1.175, 6.6.140, 6.12.88, 6.18.30, 7.0.7

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE
CWE-125
CVE-2026-46293 — Linux Linux, linux kernel | SECUFOCUS NOW