MEDIUM 4.7 Microsoft
CVE-2022-39188
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.
Microsoft Security Update 2022-Sep: 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.
Affected Products
- cm1 kernel 5.10.144.1-1 on CBL Mariner 1.0
- cbl2 kernel 5.15.67.1-4 on CBL Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-39188
- https://nvd.nist.gov/vuln/detail/CVE-2022-39188
This medium severity vulnerability with a CVSS score of 4.7 was published on 2022-09-13 via Microsoft. Affected: cm1 kernel 5.10.144.1-1 on CBL Mariner 1.0, cbl2 kernel 5.15.67.1-4 on CBL Mariner 2.0.
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