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CVE-2022-41222 is a use-after-free vulnerability in the Linux kernel memory-management code in mm/mremap.c. In kernels before 5.13.3, a PUD move can occur without holding the required reverse-mapping lock, allowing a race between an rmap walk and an mremap operation to leave stale Translation Lookaside Buffer entries and cause use-after-free behavior.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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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.
13 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel use-after-free vulnerability in mm/mremap.c prior to version 5.13.3. A stale TLB condition may occur during a PUD move because an rmap lock is not held.
A Linux kernel use-after-free vulnerability in mm/mremap.c.
Previously identified vulnerability referenced as the issue for which CVE-2023-1476 provides an incomplete fix.
A use-after-free vulnerability in the Linux kernel mm/mremap.c component.
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.