CVE-2024-57998

Kernel data disclosure via unchecked OPP index

Published Feb 27, 2025 · Updated Aug 5, 2026

Out-of-bounds read in the Linux OPP core allows local users to expose kernel heap data through caller-visible frequency values. The indexed OPP lookup helpers pass an unchecked clock index to _read_freq(), which reads beyond opp->rates[] and returns the adjacent word as a frequency. This requires a local process and a device using indexed OPP lookups; consequences include invalid clocks, I/O hangs, or a kernel panic.

CVSS severity7.3
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in the Linux OPP core allows local users to expose kernel heap data through caller-visible frequency values. The indexed OPP lookup helpers pass an unchecked clock index to _read_freq(), which reads beyond opp->rates[] and returns the adjacent word as a frequency. This requires a local process and a device using indexed OPP lookups; consequences include invalid clocks, I/O hangs, or a kernel panic.

The record

CVE
CVE-2024-57998
Published
Feb 27, 2025
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=142e17c1c2b48e3fb4f024e62ab6dee18f268694 <7d68c20638e50d5eb4576492a7958328ae445248
  2. Affected versionversion=142e17c1c2b48e3fb4f024e62ab6dee18f268694 <d659bc68ed489022ea33342cfbda2911a81e7a0d
  3. Affected versionversion=142e17c1c2b48e3fb4f024e62ab6dee18f268694 <da2a6acc73933b7812c94794726e438cde39e037
  4. Affected versionversion=142e17c1c2b48e3fb4f024e62ab6dee18f268694 <eb6ffa0192ba83ece1a318b956265519c5c7dcec
  5. Affected versionversion=6.6
  6. Affected versionversion=92fcb46659d5dbfdad0422a503e289085990a5d0 <774dd6f0f0a61c9c3848e025d7d9eeed1a7ca4cd

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=142e17c1c2b48e3fb4f024e62ab6dee18f268694 <7d68c20638e50d5eb4576492a7958328ae445248; version=142e17c1c2b48e3fb4f024e62ab6dee18f268694 <d659bc68ed489022ea33342cfbda2911a81e7a0d; version=142e17c1c2b48e3fb4f024e62ab6dee18f268694 <da2a6acc73933b7812c94794726e438cde39e037; version=142e17c1c2b48e3fb4f024e62ab6dee18f268694 <eb6ffa0192ba83ece1a318b956265519c5c7dcec; version=6.6; version=92fcb46659d5dbfdad0422a503e289085990a5d0 <774dd6f0f0a61c9c3848e025d7d9eeed1a7ca4cd

Published CVSS scores

7.3LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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