CVE-2024-37354
kernel: btrfs: fix crash on racing fsync and size-extending write into prealloc
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 25, 2024
Updated · October 21, 2026
Description
A flaw was found in the Linux kernel btrfs fsync path. An fsync can race with a size-extending write into a preallocated extent and crash the kernel. A local user of a btrfs filesystem can trigger that race.
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-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')