PT-2025-40215 · Linux+2 · Linux Kernel+2

Published 2023-07-26 · Updated 2025-11-19 · CVE-2023-53508

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A flaw exists in the Linux kernel where the ublk ctrl start dev() function may fail to properly handle interruptions during queue setup. Specifically, if wait for completion interruptible() is interrupted by a signal, the queues may not be fully configured, potentially leading to a kernel oops. This issue was reported while working on qemu-storage-deamon, which requires a single-threaded ublk daemon.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

BDU:2025-12865

CVE-2023-53508

SUSE-SU-2025:03600-1

SUSE-SU-2025:03634-1

SUSE-SU-2025:20851-1

SUSE-SU-2025:20861-1

SUSE-SU-2025:20870-1

SUSE-SU-2025:20898-1

SUSE-SU-2025:3751-1

SUSE-SU-2025:4057-1

SUSE-SU-2025:4132-1

SUSE-SU-2025:4141-1

Affected Products

Linux Kernel

Suse

Qemu-Storage-Daemon

References · 1406

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53508.json · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53508 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-53508 · Vendor Advisory
• https://git.kernel.org/stable/c/6ab3e7d424cd413d7a5e976c8a30b4ffa84a65dd · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:20851-1 · Vendor Advisory
• https://git.kernel.org/stable/c/53e7d08f6d6e214c40db1f51291bb2975c789dc2 · Patch
• https://cve.org/CVERecord?id=CVE-2023-53508 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:4141-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:20861-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:20870-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-53508 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-12865 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53508 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:4057-1 · Vendor Advisory
• https://git.kernel.org/stable/c/0d5916c439574b18a0734872daa0022b3d6105ad · Patch