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.
4.13.0-16.196.5.0-9.96.11.0-8.85.3.0-18.195.3.0-24.265.4.0-100.1135.4.0-104.1185.4.0-105.1195.4.0-107.1215.4.0-109.1235.4.0-110.1245.4.0-113.1275.4.0-117.132+57 more5.4.0-132.1484.2.0-16.194.2.0-17.214.2.0-19.234.3.0-1.104.3.0-2.114.3.0-5.164.3.0-6.174.3.0-7.184.4.0-2.163.11.0-12.195.13.0-19.196.5.0-1008.85.13.0-1005.64.4.0-1001.10Exploitability
AV:LAC:HPR:LUI:NScope
S:UImpact
C:HI:HA:HCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H