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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2025-68212

fs: Fix uninitialized 'offp' in statmount_string()

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 37c4a9590e1efcae7749682239fc22a330d2d325 to < acfde9400e611c8d2668f1c70053c4a1d6ecfc36affected
  • 37c4a9590e1efcae7749682239fc22a330d2d325 to < 0778ac7df5137d5041783fadfc201f8fd55a1d9baffected

Linux Linux

Default version status: affected

  • 6.15affected
  • 0 to < 6.15unaffected
  • 6.17.10 to ≤ 6.17.*unaffected
  • 6.18 to ≤ *unaffected

References