CVE-2022-39188
low-risk
Published 2022-09-02
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.
Do I need to act?
-
0.02% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.7/10
Medium
LOCAL
/ HIGH complexity
Affected Products (3)
References (16)
Third Party Advisory
https://www.debian.org/security/2022/dsa-5257
Third Party Advisory
https://www.debian.org/security/2022/dsa-5257
21
/ 100
low-risk
Severity
12/34 · Low
Exploitability
0/34 · Minimal
Exposure
9/34 · Low