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cvelistMitreCVELIST:CVE-2022-39188
HistorySep 02, 2022 - 12:00 a.m.

CVE-2022-39188

2022-09-0200:00:00
mitre
www.cve.org
1
linux kernel
race condition
stale tlb entries

6.2 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

14.3%

An issue was discovered in include/asm-generic/tlb.h in the Linux kernel before 5.19. Because of a race condition (unmap_mapping_range versus munmap), a device driver can free a page while it still has stale TLB entries. This only occurs in situations with VM_PFNMAP VMAs.