CVE-2018-14613

kernel: Invalid pointer dereference in io_ctl_map_page() when mounting and operating a crafted btrfs image

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Severity

Low

Red Hat Product Security

4.6

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. An invalid pointer dereference in io_ctl_map_page() when mounting and operating a crafted btrfs image is due to a lack of block group item validation in check_leaf_item() in fs/btrfs/tree-checker.c function. This could lead to a system crash and a denial of service.

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 · 4.6
CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference