CVE-2026-63954

Published: Jul 19, 2026Modified: Oct 30, 2026

7.8

Vector

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

Exploitability: 1.8 / Impact: 5.9

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Description

In the Linux kernel, the following vulnerability has been resolved: hpfs: fix a crash if hpfs_map_dnode_bitmap fails If hpfs_map_dnode_bitmap fails, the code would call hpfs_brelse4 on uninitialized quad buffer head, causing a crash.

Affected (17)

Products: Linux: Linux Kernel

Linux

1 product

Linux Kernel

Configuration A

17 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	2.6.12.1 ≤ version < 5.10.259
Linux Linux Kernel	5.11 ≤ version < 5.15.210
Linux Linux Kernel	5.16 ≤ version < 6.1.176
Linux Linux Kernel	6.13 ≤ version < 6.18.35
Linux Linux Kernel	6.19 ≤ version < 7.0.12
Linux Linux Kernel	6.2 ≤ version < 6.6.143
Linux Linux Kernel	6.7 ≤ version < 6.12.93
Linux Linux Kernel	Version 2.6.12
Linux Linux Kernel	Version 2.6.12 rc2
Linux Linux Kernel	Version 2.6.12 rc3
Linux Linux Kernel	Version 2.6.12 rc4
Linux Linux Kernel	Version 2.6.12 rc5
Linux Linux Kernel	Version 7.1 rc1
Linux Linux Kernel	Version 7.1 rc2
Linux Linux Kernel	Version 7.1 rc3
Linux Linux Kernel	Version 7.1 rc4
Linux Linux Kernel	Version 7.1 rc5