CVE-2024-57975

kernel: btrfs: do proper folio cleanup when run_delalloc_nocow() failed

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Severity

Moderate

Red Hat Product Security

4.7

CVSS 3.1

Review impact separately from score.

Published · February 27, 2025

Updated · October 21, 2026

Description

A flaw was found in the Linux kernel btrfs delalloc path. When run_delalloc_nocow() fails, the folio is left unlocked and later writeback hits a BUG_ON. A local user of a btrfs filesystem can crash the kernel by forcing that failure.

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

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 4.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-459 · Incomplete Cleanup