Lucene search

K
redhatcveRedhat.comRH:CVE-2018-18281
HistoryApr 08, 2020 - 5:14 a.m.

CVE-2018-18281

2020-04-0805:14:54
redhat.com
access.redhat.com
14

EPSS

0.001

Percentile

44.5%

Since Linux kernel version 3.2, the mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused.