CVE-2025-68212 (GCVE-0-2025-68212)

Vulnerability from cvelistv5 – Published: 2025-12-16 13:57 – Updated: 2026-01-17 15:46
VLAI?
Title
fs: Fix uninitialized 'offp' in statmount_string()
Summary
In the Linux kernel, the following vulnerability has been resolved: fs: Fix uninitialized 'offp' in statmount_string() In statmount_string(), most flags assign an output offset pointer (offp) which is later updated with the string offset. However, the STATMOUNT_MNT_UIDMAP and STATMOUNT_MNT_GIDMAP cases directly set the struct fields instead of using offp. This leaves offp uninitialized, leading to a possible uninitialized dereference when *offp is updated. Fix it by assigning offp for UIDMAP and GIDMAP as well, keeping the code path consistent.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 37c4a9590e1efcae7749682239fc22a330d2d325 , < acfde9400e611c8d2668f1c70053c4a1d6ecfc36 (git)
Affected: 37c4a9590e1efcae7749682239fc22a330d2d325 , < 0778ac7df5137d5041783fadfc201f8fd55a1d9b (git)
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    Linux Linux Affected: 6.15
Unaffected: 0 , < 6.15 (semver)
Unaffected: 6.17.10 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs: Fix uninitialized \u0027offp\u0027 in statmount_string()\n\nIn statmount_string(), most flags assign an output offset pointer (offp)\nwhich is later updated with the string offset. However, the\nSTATMOUNT_MNT_UIDMAP and STATMOUNT_MNT_GIDMAP cases directly set the\nstruct fields instead of using offp. This leaves offp uninitialized,\nleading to a possible uninitialized dereference when *offp is updated.\n\nFix it by assigning offp for UIDMAP and GIDMAP as well, keeping the code\npath consistent."
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        "dateUpdated": "2026-01-17T15:46:46.600Z",
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    "cveId": "CVE-2025-68212",
    "datePublished": "2025-12-16T13:57:08.327Z",
    "dateReserved": "2025-12-16T13:41:40.256Z",
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