CVE-2024-26905
kernel: btrfs: fix data races when accessing the reserved amount of block reserves
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · April 17, 2024
Updated · October 31, 2026
Description
A flaw was found in the Linux kernel's Btrfs file system. A local user could trigger a race condition by executing concurrent filesystem operations where block reserve accounting values are accessed without proper synchronization. This race condition may lead to inconsistent space tracking and premature metadata space reclamation, potentially causing performance degradation.
Statement
This CVE has been marked as Rejected by the assigning CNA.
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')