CVE-2018-14611

kernel: Use-after-free in try_merge_free_space() when mounting crafted btrfs image

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Severity

Low

Red Hat Product Security

5.2

CVSS 3.0

Review impact separately from score.

Published · May 26, 2018

Updated · June 28, 2026

Description

An issue was discovered in the btrfs filesystem code in the Linux kernel. A use-after-free is possible in try_merge_free_space() when mounting a crafted btrfs image due to a lack of chunk type flag checks in btrfs_check_chunk_valid() in the fs/btrfs/volumes.c function. This could lead to a denial of service or other unspecified impact.

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 3.0 · 5.2
CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

CWE-1287 · Improper Validation of Specified Type of Input