CVE-2024-49921

Host crash via unchecked AMD display pointers

Published Oct 21, 2024 · Updated May 11, 2026

Null-pointer dereference in Linux 4.15 through 6.11.2 allows local users to crash the host through AMD display-driver paths. Ten AMD display code paths reuse pointers such as dc->clk_mgr after earlier null checks without validating them again before dereference. Trigger details are undisclosed; reaching the affected paths requires local low-privileged access and applicable AMD display hardware, and the reported consequence is an availability-only host crash.

CVSS severity5.5
Medium
EPSS probability0.21%
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 Linux 4.15 through 6.11.2 allows local users to crash the host through AMD display-driver paths. Ten AMD display code paths reuse pointers such as dc->clk_mgr after earlier null checks without validating them again before dereference. Trigger details are undisclosed; reaching the affected paths requires local low-privileged access and applicable AMD display hardware, and the reported consequence is an availability-only host crash.

The record

CVE
CVE-2024-49921
Published
Oct 21, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
Unavailable

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 <5b35bf1a82eb29841b67ff5643ba83762250fc24
  3. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <be1fb44389ca3038ad2430dac4234669bc177ee3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=4.15; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <5b35bf1a82eb29841b67ff5643ba83762250fc24; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <be1fb44389ca3038ad2430dac4234669bc177ee3

Published CVSS scores

5.5SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.8SUSECVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5NVDCVSS: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
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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