CVE-2022-48734
kernel: btrfs: fix deadlock between quota disable and qgroup rescan worker
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 20, 2024
Updated · November 21, 2025
Description
A vulnerability was found in the Linux kernel's btrfs file system. The quota disable process leads to a deadlock situation when the quota disable ioctl is initiated. This issue starts a transaction and waits indefinitely for the qgroup rescan worker to complete, creating a circular dependency with other tasks.
Statement
Red Hat Enterprise Linux is not vulnerable to this CVE, as it does not affect the versions or configurations of the Linux kernel used in its distributions.
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
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-833 · Deadlock