CVE-2025-40198 (GCVE-0-2025-40198)

Vulnerability from cvelistv5 – Published: 2025-11-12 21:56 – Updated: 2025-12-01 06:19
VLAI?
Title
ext4: avoid potential buffer over-read in parse_apply_sb_mount_options()
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 8b67f04ab9de5d8f3a71aef72bf02c995a506db5 , < 7bf46ff83a0ef11836e38ebd72cdc5107209342d (git)
Affected: 8b67f04ab9de5d8f3a71aef72bf02c995a506db5 , < b2bac84fde28fb6a88817b8b761abda17a1d300b (git)
Affected: 8b67f04ab9de5d8f3a71aef72bf02c995a506db5 , < e651294218d2684302ee5ed95ccf381646f3e5b4 (git)
Affected: 8b67f04ab9de5d8f3a71aef72bf02c995a506db5 , < 01829af7656b56d83682b3491265d583d502e502 (git)
Affected: 8b67f04ab9de5d8f3a71aef72bf02c995a506db5 , < 2a0cf438320cdb783e0378570744c0ef0d83e934 (git)
Affected: 8b67f04ab9de5d8f3a71aef72bf02c995a506db5 , < a6e94557cd05adc82fae0400f6e17745563e5412 (git)
Affected: 8b67f04ab9de5d8f3a71aef72bf02c995a506db5 , < 8ecb790ea8c3fc69e77bace57f14cf0d7c177bd8 (git)
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    Linux Linux Affected: 2.6.36
Unaffected: 0 , < 2.6.36 (semver)
Unaffected: 5.4.301 , ≤ 5.4.* (semver)
Unaffected: 5.10.246 , ≤ 5.10.* (semver)
Unaffected: 6.1.158 , ≤ 6.1.* (semver)
Unaffected: 6.6.114 , ≤ 6.6.* (semver)
Unaffected: 6.12.54 , ≤ 6.12.* (semver)
Unaffected: 6.17.4 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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      "providerMetadata": {
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        "shortName": "Linux"
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}


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