CVE Database›CVE-2024-26904

CVE-2024-26904

kernel: btrfs: fix data race at btrfs_use_block_rsv() when accessing block reserve

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Severity

Low

Red Hat Product Security

2.5

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 · 2.5
CVSS: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')