CVE-2024-49943

Service interruption via queue use-after-free

Published Oct 21, 2024 · Updated Aug 5, 2026

Use-after-free in the Linux kernel 6.11 allows local users to interrupt service by racing Intel Xe queue destruction against a wedge check. In wedged_fini, the queue lookup releases submission_state before checking wedge status, allowing an asynchronous destroy to free a zero-reference-count queue before dereference. Reachability requires local low-privileged access and the affected Intel Xe graphics path; the stale dereference can destabilize the host kernel.

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

What happened

Use-after-free in the Linux kernel 6.11 allows local users to interrupt service by racing Intel Xe queue destruction against a wedge check. In wedged_fini, the queue lookup releases submission_state before checking wedge status, allowing an asynchronous destroy to free a zero-reference-count queue before dereference. Reachability requires local low-privileged access and the affected Intel Xe graphics path; the stale dereference can destabilize the host kernel.

The record

CVE
CVE-2024-49943
Published
Oct 21, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-667, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 21, 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=6.11
  2. Affected versionversion=8ed9aaae39f39130b7a3eb2726be05d7f64b344c <790533e44bfc7af929842fccd9674c9f424d4627
  3. Affected versionversion=8ed9aaae39f39130b7a3eb2726be05d7f64b344c <d88f9bab7e62dd0dbe983fa70cf040042a60cc84

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.11; version=8ed9aaae39f39130b7a3eb2726be05d7f64b344c <790533e44bfc7af929842fccd9674c9f424d4627; version=8ed9aaae39f39130b7a3eb2726be05d7f64b344c <d88f9bab7e62dd0dbe983fa70cf040042a60cc84

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8kernel.orgCVSS: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-667Improper Locking
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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