CVE-2024-26904
kernel: btrfs: fix data race at btrfs_use_block_rsv() when accessing block reserve
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 race condition occurs in the btrfs_use_block_rsv() function when reading the size of a block reserve without acquiring the appropriate lock. A local user could exploit this flaw during concurrent file system operations to cause inconsistent memory states, potentially leading to a denial of service (DoS).
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 · 2.5CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')