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CVE-2024-35877 affects Page Attribute Table (PAT) tracking for x86 copy-on-write (COW) mappings in the Linux kernel. Write faults can replace mapped page-table entries with anonymous folios, preventing follow_phys() from reliably recovering the original physical frame number and cache mode. It may return anonymous-folio information or fail on swap and nonswap entries, triggering warnings in untrack_pfn() and track_pfn_copy(). Consequently, free_pfn_range() may omit memtype_free() or invoke it for an incorrect range, potentially leaking memory.
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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.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Referenced by the OpenShift Container Platform 4.17.30 security advisory without vulnerability-specific technical details.
A flaw in Linux kernel x86 memory-management handling of VM_PAT in copy-on-write mappings.
Unknown.
Unknown
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.