vulnerability
Red Hat: CVE-2022-39188: unmap_mapping_range() race with munmap() on VM_PFNMAP mappings leads to stale TLB entry (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:M/Au:S/C:N/I:N/A:C) | 2022-09-02 | 2023-05-15 | 2025-03-21 |
Severity
4
CVSS
(AV:L/AC:M/Au:S/C:N/I:N/A:C)
Published
2022-09-02
Added
2023-05-15
Modified
2025-03-21
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.
Solution(s)
redhat-upgrade-kernelredhat-upgrade-kernel-rt
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