CVE-2022-39188 — Race Condition in Kernel
Severity
4.7MEDIUMNVD
OSV7.8OSV5.9OSV5.5OSV4.4
EPSS
0.0%
top 95.60%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedSep 2
Latest updateFeb 13
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.0 | Impact: 3.6
Affected Packages7 packages
Also affects: Debian Linux 10.0, 11.0