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CVE-2024-27022 is a race condition in the Linux kernel fork path affecting file-backed VMAs, including hugetlbfs mappings. During dup_mmap(), a child VMA could be inserted into the file mapping's i_mmap interval tree and thus become visible to concurrent operations before hugetlb_dup_vma_private() and the VMA open callback had completed initialization of its VMA lock. A concurrent hugetlbfs hole-punch operation could traverse the visible VMA and attempt to acquire or release the uninitialized lock. The fix defers linking file VMAs into the i_mmap tree until VMA initialization is complete.
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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.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel fork-path flaw involving linking a file VMA before it is fully initialized.
Linux kernel fork/VMA initialization flaw addressed by deferring file-VMA linking.
A resolved Linux kernel vulnerability in fork-related virtual memory area (VMA) handling, addressed by deferring linkage of a file VMA until initialization is complete.
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.