CVE-2024-57998: OPP: add index check to assert to avoid buffer overflow in _read_freq()

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-02-27 · updated 2026-08-04
Weakness: CWE-125

Description

In the Linux kernel, the following vulnerability has been resolved: OPP: add index check to assert to avoid buffer overflow in _read_freq() Pass the freq index to the assert function to make sure we do not read a freq out of the opp->rates[] table when called from the indexed variants: dev_pm_opp_find_freq_exact_indexed() or dev_pm_opp_find_freq_ceil/floor_indexed(). Add a secondary parameter to the assert function, unused for assert_single_clk() then add assert_clk_index() which will check for the clock index when called from the _indexed() find functions.

Affected products

Linux kernel: from 6.6 before 6.6.76; from 6.7 before 6.12.13; from 6.13 before 6.13.2 — fixed in 6.12.13, 6.13.2, 6.6.76

How to fix

Upgrade to a fixed version: Linux kernel 6.12.13, 6.13.2, 6.6.76. Check the vendor advisory for mitigations.

References

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