CVE-2025-68212 (GCVE-0-2025-68212)
Vulnerability from cvelistv5
Published
2025-12-16 13:57
Modified
2025-12-16 13:57
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: e52e97f09fb66fd868260d05bd6b74a9a3db39ee
Version: e52e97f09fb66fd868260d05bd6b74a9a3db39ee
Version: d49c64c1d723c167f521833f429ab28d3ca7e0d9
Version: c3787a4fae66e710543137b4b1b073cb2bff3bca
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          "programFiles": [
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      "descriptions": [
        {
          "lang": "en",
          "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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      "providerMetadata": {
        "dateUpdated": "2025-12-16T13:57:08.327Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
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          "url": "https://git.kernel.org/stable/c/0778ac7df5137d5041783fadfc201f8fd55a1d9b"
        }
      ],
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    "datePublished": "2025-12-16T13:57:08.327Z",
    "dateReserved": "2025-12-16T13:41:40.256Z",
    "dateUpdated": "2025-12-16T13:57:08.327Z",
    "state": "PUBLISHED"
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  }
}


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