mm/mremap
mm/mremap.c in the Linux kernel before 5.13.3 has a use-after-free via a stale TLB because an rmap lock is not held during a PUD move.
Exploitability
AV:L
AC:H
PR:L
UI:N
Scope
S:U
Impact
C:H
I:H
A:H
7/CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H