Vulnerability 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.
CVSS Score
HIGH
References
- https://git.kernel.org/stable/c/01829af7656b56d83682b3491265d583d502e502
- https://git.kernel.org/stable/c/2a0cf438320cdb783e0378570744c0ef0d83e934
- https://git.kernel.org/stable/c/7bf46ff83a0ef11836e38ebd72cdc5107209342d
- https://git.kernel.org/stable/c/8ecb790ea8c3fc69e77bace57f14cf0d7c177bd8
- https://git.kernel.org/stable/c/a6e94557cd05adc82fae0400f6e17745563e5412
- https://git.kernel.org/stable/c/b2bac84fde28fb6a88817b8b761abda17a1d300b
- https://git.kernel.org/stable/c/e651294218d2684302ee5ed95ccf381646f3e5b4
FAQ
What is CVE-2025-40198?
CVE-2025-40198 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 t...
How severe is CVE-2025-40198?
CVE-2025-40198 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-40198?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.