CVE-2024-49907

System crash via AMD display null dereference

Published Oct 21, 2024 · Updated May 11, 2026

NULL pointer dereference in the Linux kernel's AMD display driver allows local users to crash the system through idle-power handling. The AMD display core passes dc to apply_idle_power_optimizations even when dc->clk_mgr is null, and dcn35_apply_idle_power_optimizations then dereferences that pointer. Reachability requires low-privileged local access and an AMD display path that enters idle-power optimization without an initialized clock manager.

CVSS severity5.5
Medium
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

NULL pointer dereference in the Linux kernel's AMD display driver allows local users to crash the system through idle-power handling. The AMD display core passes dc to apply_idle_power_optimizations even when dc->clk_mgr is null, and dcn35_apply_idle_power_optimizations then dereferences that pointer. Reachability requires low-privileged local access and an AMD display path that enters idle-power optimization without an initialized clock manager.

The record

CVE
CVE-2024-49907
Published
Oct 21, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 21, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=4.15
  2. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <3f7e533c10db3d0158709a99e2129ff63add6bcd
  3. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <5ba3fbf75b243b2863a8be9e7c393e003d3b88f3
  4. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <8d54001f8dccd56146973f23f3ab2ba037a21251
  5. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <95d9e0803e51d5a24276b7643b244c7477daf463
  6. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <9641bc4adf8446034e490ed543ae7e9833cfbdf5
  7. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <a2773e0a4b79e7a6463abdffaf8cc4f24428ba18
  8. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <a545a9403e04c6e17fdc04a26a61d9feebbba106

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.15; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <3f7e533c10db3d0158709a99e2129ff63add6bcd; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <5ba3fbf75b243b2863a8be9e7c393e003d3b88f3; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <8d54001f8dccd56146973f23f3ab2ba037a21251; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <95d9e0803e51d5a24276b7643b244c7477daf463; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <9641bc4adf8446034e490ed543ae7e9833cfbdf5; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <a2773e0a4b79e7a6463abdffaf8cc4f24428ba18; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <a545a9403e04c6e17fdc04a26a61d9feebbba106

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

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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