CVE-2024-26657

Local service interruption via null scheduler queue

Published Apr 2, 2024 · Updated May 11, 2026

NULL pointer dereference in Linux kernel 6.7 and 6.8 AMDGPU DRM scheduler code allows local users to crash the kernel via an ioctl. The amdgpu_cs_wait_ioctl path treats a wait with no previously submitted job as successful, passes a NULL sched_rq into drm_sched_entity_init, and dereferences it. Triggering the fault requires a valid AMDGPU context on AMD GPU hardware and interrupts the host with a kernel oops.

CVSS severity5.5
Medium
EPSS probability0.23%
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 kernel 6.7 and 6.8 AMDGPU DRM scheduler code allows local users to crash the kernel via an ioctl. The amdgpu_cs_wait_ioctl path treats a wait with no previously submitted job as successful, passes a NULL sched_rq into drm_sched_entity_init, and dereferences it. Triggering the fault requires a valid AMDGPU context on AMD GPU hardware and interrupts the host with a kernel oops.

The record

CVE
CVE-2024-26657
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=56e449603f0ac580700621a356d35d5716a62ce5 <54b5b7275dfdec35812ccce70930cd7c4ee612b2
  2. Affected versionversion=56e449603f0ac580700621a356d35d5716a62ce5 <74cd204c7afe498aa9dcc3ebf0ecac53d477a429
  3. Affected versionversion=56e449603f0ac580700621a356d35d5716a62ce5 <f34e8bb7d6c6626933fe993e03ed59ae85e16abb
  4. Affected versionversion=6.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=56e449603f0ac580700621a356d35d5716a62ce5 <54b5b7275dfdec35812ccce70930cd7c4ee612b2; version=56e449603f0ac580700621a356d35d5716a62ce5 <74cd204c7afe498aa9dcc3ebf0ecac53d477a429; version=56e449603f0ac580700621a356d35d5716a62ce5 <f34e8bb7d6c6626933fe993e03ed59ae85e16abb; version=6.7

Published CVSS scores

5.5CanonicalCVSS: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
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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