CVE-2024-26644

kernel: btrfs: don't abort filesystem when attempting to snapshot deleted subvolume

Loading…

Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · March 26, 2024

Updated · November 21, 2025

Description

A vulnerability was found in the Btrfs filesystem implementation within the Linux kernel, where a NULL pointer dereference occurred because of create_pending_snapshot() function, attempting to initialize a new root item from a deleted subvolume's root.

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

Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS: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')