CVE-2024-49943

MEDIUM EPSS 4.7%
Published Oct 21, 20241y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Oct 21, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: drm/xe/guc_submit: add missing locking in wedged_fini Any non-wedged queue can have a zero refcount here and can be running concurrently with an async queue destroy, therefore dereferencing the queue ptr to check wedge status after the lookup can trigger UAF if queue is not wedged. Fix this by keeping the submission_state lock held around the check to postpone the free and make the check safe, before dropping again around the put() to avoid the deadlock. (cherry picked from commit d28af0b6b9580b9f90c265a7da0315b0ad20bbfd)

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-667

Affected Products 2

VendorProductVersionRange
linuxlinux_kernel*≥6.11  –  <6.11.3
linuxlinux_kernel6.12any

References 2

  • git.kernel.org https://git.kernel.org/stable/c/790533e44bfc7af929842fccd9674c9f424d4627
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d88f9bab7e62dd0dbe983fa70cf040042a60cc84
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/790533e44bfc7af929842fccd9674c9f424d4627
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d88f9bab7e62dd0dbe983fa70cf040042a60cc84
    Patch