CVE-2024-34027
kernel: f2fs: compress: fix to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 24, 2024
Updated · November 21, 2025
Description
A vulnerability was found in the Flash-Friendly File System (F2FS) in the Linux kernel, where the reserve_compress_blocks() and release_compress_blocks() functions were not adequately protected by the cp_rwsem lock. This locking deficiency could lead to race conditions, potentially causing data corruption or system instability when multiple processes access these functions concurrently. The issue has been addressed in a kernel update to ensure proper locking and prevent such race conditions.
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:H/A:N
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')