CVE-2025-40198

high

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid potential buffer over-read in parse_apply_sb_mount_options() Unlike other strings in the ext4 superblock, we rely on tune2fs to make sure s_mount_opts is NUL terminated. Harden parse_apply_sb_mount_options() by treating s_mount_opts as a potential __nonstring.

References

https://git.kernel.org/stable/c/e651294218d2684302ee5ed95ccf381646f3e5b4

https://git.kernel.org/stable/c/b2bac84fde28fb6a88817b8b761abda17a1d300b

https://git.kernel.org/stable/c/a6e94557cd05adc82fae0400f6e17745563e5412

https://git.kernel.org/stable/c/8ecb790ea8c3fc69e77bace57f14cf0d7c177bd8

https://git.kernel.org/stable/c/7bf46ff83a0ef11836e38ebd72cdc5107209342d

https://git.kernel.org/stable/c/2a0cf438320cdb783e0378570744c0ef0d83e934

https://git.kernel.org/stable/c/01829af7656b56d83682b3491265d583d502e502

Details

Source: Mitre, NVD

Published: 2025-11-12

Updated: 2025-11-14

Risk Information

CVSS v2

Base Score: 5.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 7.1

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

Severity: High

EPSS

EPSS: 0.00024