CVE-2023-53348

kernel: Kernel: Denial of Service due to deadlock in btrfs during block group relocation with scrub

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · September 17, 2025

Updated · June 30, 2026

Description

A flaw was found in the kernel. A local user could trigger a deadlock in the btrfs filesystem when a transaction is aborted during a block group relocation operation while a scrub is paused. This vulnerability can lead to a Denial of Service (DoS) condition, making the system unresponsive.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-833 · Deadlock