CVE-2023-52691

Kernel crash via AMD initialization double-free

Published May 17, 2024 · Updated Aug 5, 2026

Double free in AMD GPU power management in Linux 4.9 through 6.7.1 allows local users to trigger a kernel crash during initialization. When a display-clock dependency allocation fails in si_dpm_init, cleanup frees the extended power table, then si_dpm_fini frees the same fields again through the dpm_failed path. Reachability requires the legacy Southern Islands AMD GPU power-management initialization path and an allocation failure; the resulting memory corruption interrupts the host.

CVSS severity7.8
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Double free in AMD GPU power management in Linux 4.9 through 6.7.1 allows local users to trigger a kernel crash during initialization. When a display-clock dependency allocation fails in si_dpm_init, cleanup frees the extended power table, then si_dpm_fini frees the same fields again through the dpm_failed path. Reachability requires the legacy Southern Islands AMD GPU power-management initialization path and an allocation failure; the resulting memory corruption interrupts the host.

The record

CVE
CVE-2023-52691
Published
May 17, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-415, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 17, 2024CVE 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=4.9
  2. Affected versionversion=841686df9f7d2942cfd94d024b8591fa3f74ef7c <06d95c99d5a4f5accdb79464076efe62e668c706
  3. Affected versionversion=841686df9f7d2942cfd94d024b8591fa3f74ef7c <2bf47c89bbaca2bae16581ef1b28aaec0ade0334
  4. Affected versionversion=841686df9f7d2942cfd94d024b8591fa3f74ef7c <ac16667237a82e2597e329eb9bc520d1cf9dff30
  5. Affected versionversion=841686df9f7d2942cfd94d024b8591fa3f74ef7c <aeed2b4e4a70c7568d4a5eecd6a109713c0dfbf4
  6. Affected versionversion=841686df9f7d2942cfd94d024b8591fa3f74ef7c <afe9f5b871f86d58ecdc45b217b662227d7890d0
  7. Affected versionversion=841686df9f7d2942cfd94d024b8591fa3f74ef7c <ca8e2e251c65e5a712f6025e27bd9b26d16e6f4a
  8. Affected versionversion=841686df9f7d2942cfd94d024b8591fa3f74ef7c <f957a1be647f7fc65926cbf572992ec2747a93f2
  9. Affected versionversion=841686df9f7d2942cfd94d024b8591fa3f74ef7c <fb1936cb587262cd539e84b34541abb06e42b2f9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.9; version=841686df9f7d2942cfd94d024b8591fa3f74ef7c <06d95c99d5a4f5accdb79464076efe62e668c706; version=841686df9f7d2942cfd94d024b8591fa3f74ef7c <2bf47c89bbaca2bae16581ef1b28aaec0ade0334; version=841686df9f7d2942cfd94d024b8591fa3f74ef7c <ac16667237a82e2597e329eb9bc520d1cf9dff30; version=841686df9f7d2942cfd94d024b8591fa3f74ef7c <aeed2b4e4a70c7568d4a5eecd6a109713c0dfbf4; version=841686df9f7d2942cfd94d024b8591fa3f74ef7c <afe9f5b871f86d58ecdc45b217b662227d7890d0; version=841686df9f7d2942cfd94d024b8591fa3f74ef7c <ca8e2e251c65e5a712f6025e27bd9b26d16e6f4a; version=841686df9f7d2942cfd94d024b8591fa3f74ef7c <f957a1be647f7fc65926cbf572992ec2747a93f2; version=841686df9f7d2942cfd94d024b8591fa3f74ef7c <fb1936cb587262cd539e84b34541abb06e42b2f9

Published CVSS scores

5.5Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-415Double Free
T1499Endpoint Denial of Service

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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