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CVE-2022-39188 is a use-after-free vulnerability in the Linux kernel before 5.19 affecting TLB invalidation handling in include/asm-generic/tlb.h. A race between unmap_mapping_range() and munmap() for VM_PFNMAP virtual memory areas can permit a device driver to free a page while stale TLB translations still reference it.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel virtual-memory race condition producing stale TLB entries.
Linux memory-mapping race condition resulting in stale TLB entries.
Linux kernel VM_PFNMAP mapping race resulting in stale TLB entries.
Race condition creating stale TLB entries for VM_PFNMAP mappings.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.