CVE-2023-53292

MEDIUM EPSS 3.3%
Published Sep 16, 20259mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 16, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none After grabbing q->sysfs_lock, q->elevator may become NULL because of elevator switch. Fix the NULL dereference on q->elevator by checking it with lock.

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
3.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 1

VendorProductVersionRange
linuxlinux_kernel* <6.4.7

References 3

  • git.kernel.org https://git.kernel.org/stable/c/245165658e1c9f95c0fecfe02b9b1ebd30a1198a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3e977386521b71471e66ec2ba82efdfcc456adf2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/988ddb77218d3975dd13dee7bb0e1fae098a9fdb

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/245165658e1c9f95c0fecfe02b9b1ebd30a1198a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3e977386521b71471e66ec2ba82efdfcc456adf2
    Patch