CVE-2024-26672

Kernel crash via premature mca_funcs dereference

Published Apr 2, 2024 · Updated May 11, 2026

NULL pointer dereference in the AMDGPU driver in Linux 4.2 through 6.7.3 allows local users to crash the kernel through MCA access. amdgpu_mca_smu_get_mca_entry() reads max_ue_count or max_ce_count through adev->mca.mca_funcs before checking whether that pointer is NULL. Reachability requires local low-privileged access and an AMDGPU MCA path with an uninitialized function table; the resulting fault can stop the host.

CVSS severity7.1
High
EPSS probability0.22%
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 AMDGPU driver in Linux 4.2 through 6.7.3 allows local users to crash the kernel through MCA access. amdgpu_mca_smu_get_mca_entry() reads max_ue_count or max_ce_count through adev->mca.mca_funcs before checking whether that pointer is NULL. Reachability requires local low-privileged access and an AMDGPU MCA path with an uninitialized function table; the resulting fault can stop the host.

The record

CVE
CVE-2024-26672
Published
Apr 2, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 2, 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=4.2
  2. Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <4f32504a2f85a7b40fe149436881381f48e9c0c0
  3. Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <7b5d58c07024516c0e81b95e98f37710cf402c53

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.2; version=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <4f32504a2f85a7b40fe149436881381f48e9c0c0; version=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <7b5d58c07024516c0e81b95e98f37710cf402c53

Published CVSS scores

7.1CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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
Privilegesauthenticated
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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