CVE-2025-68212

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.