CVE-2026-98831

In the Linux kernel, the following vulnerability has been resolved:

of/overlay: don't leak fragment references when changeset init fails

init_overlay_changeset() stores the number of initialized fragments

in ovcs->count only on full success. When find_target() or the

__symbols__ lookup fails partway through, the target and overlay

references taken for the fragments initialized so far are never

dropped: free_overlay_changeset() bounds its cleanup loop by

ovcs->count, which is still 0.

Store the running count on the error path so free_overlay_changeset()

puts whatever was set up. The store is guarded by ovcs->fragments

because on the allocation-failure path cnt still holds the counting

pass total while there is no fragments array; everywhere else cnt

only counts fully-initialized fragments.