CVE-2025-40198
ext4: avoid potential buffer over-read in parse_apply_sb_mount_options()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Nov 12, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
8b67f04ab9de5d8f3a71aef72bf02c995a506db5 < 7bf46ff83a0ef11836e38ebd72cdc5107209342d 8b67f04ab9de5d8f3a71aef72bf02c995a506db5 < b2bac84fde28fb6a88817b8b761abda17a1d300b 8b67f04ab9de5d8f3a71aef72bf02c995a506db5 < e651294218d2684302ee5ed95ccf381646f3e5b4 8b67f04ab9de5d8f3a71aef72bf02c995a506db5 < 01829af7656b56d83682b3491265d583d502e502 8b67f04ab9de5d8f3a71aef72bf02c995a506db5 < 2a0cf438320cdb783e0378570744c0ef0d83e934 8b67f04ab9de5d8f3a71aef72bf02c995a506db5 < a6e94557cd05adc82fae0400f6e17745563e5412 8b67f04ab9de5d8f3a71aef72bf02c995a506db5 < 8ecb790ea8c3fc69e77bace57f14cf0d7c177bd8
Linux / Linux
2.6.36
References
git.kernel.org: https://git.kernel.org/stable/c/7bf46ff83a0ef11836e38ebd72cdc5107209342d git.kernel.org: https://git.kernel.org/stable/c/b2bac84fde28fb6a88817b8b761abda17a1d300b git.kernel.org: https://git.kernel.org/stable/c/e651294218d2684302ee5ed95ccf381646f3e5b4 git.kernel.org: https://git.kernel.org/stable/c/01829af7656b56d83682b3491265d583d502e502 git.kernel.org: https://git.kernel.org/stable/c/2a0cf438320cdb783e0378570744c0ef0d83e934 git.kernel.org: https://git.kernel.org/stable/c/a6e94557cd05adc82fae0400f6e17745563e5412 git.kernel.org: https://git.kernel.org/stable/c/8ecb790ea8c3fc69e77bace57f14cf0d7c177bd8