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CVE-2024-56614 is an out-of-bounds write vulnerability in the Linux kernel AF_XDP XSK map deletion path, xsk_map_delete_elem(). The function compares a user-controlled signed key/index with the unsigned map maximum-entry count. Implicit signed-to-unsigned conversion can allow negative key values to pass the bounds check when the map has a sufficiently large unsigned maximum-entry value. The negative key is subsequently used to index the XSK map array. An exchange operation then writes through the invalid array-derived pointer, and the invalid entry can also be passed to xsk_map_sock_delete(), causing further memory corruption.
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No public exploit code observed for this vulnerability.
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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.
Linux kernel XSK flaw permitting out-of-bounds map writes when deleting elements.
Out-of-bounds map writes in Linux kernel AF_XDP socket element deletion.
Unknown
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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.