CVE-2023-53508

HIGH EPSS 4.7%
Published Oct 1, 20259mo ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Oct 1, 2025 9mo ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: ublk: fail to start device if queue setup is interrupted In ublk_ctrl_start_dev(), if wait_for_completion_interruptible() is interrupted by signal, queues aren't setup successfully yet, so we have to fail UBLK_CMD_START_DEV, otherwise kernel oops can be triggered. Reported by German when working on qemu-storage-deamon which requires single thread ublk daemon.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

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

Affected Products 5

VendorProductVersionRange
linuxlinux_kernel*≥6.0  –  <6.1.43
linuxlinux_kernel*≥6.2  –  <6.4.8
linuxlinux_kernel6.5any
linuxlinux_kernel6.5any
linuxlinux_kernel6.5any

References 3

  • git.kernel.org https://git.kernel.org/stable/c/0d5916c439574b18a0734872daa0022b3d6105ad
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/53e7d08f6d6e214c40db1f51291bb2975c789dc2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6ab3e7d424cd413d7a5e976c8a30b4ffa84a65dd
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0d5916c439574b18a0734872daa0022b3d6105ad
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/53e7d08f6d6e214c40db1f51291bb2975c789dc2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6ab3e7d424cd413d7a5e976c8a30b4ffa84a65dd
    Patch