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CVE-2024-56615 is a memory-safety vulnerability in the Linux kernel BPF DEVMAP implementation. A signed integer used as the map-entry index can cause out-of-bounds writes when deleting elements. The dev_map_free() cleanup function also uses a signed integer iterator, causing out-of-bounds accesses when releasing a map. The defect can corrupt kernel memory and trigger a kernel-mode page fault during deferred BPF map cleanup. The fix changes both the map-entry index and the cleanup iterator from int to u32.
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6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel BPF DEVMAP vulnerability causes out-of-bounds writes during element deletion and out-of-bounds accesses during map cleanup because indices use signed integers. The fix changes the relevant index and iterator types from int to u32. The advisory rates the vulnerability High, with a CVSS v3 score of 7.8 and a local, low-privilege attack vector.
A high-impact local vulnerability affecting Unity Linux systems, requiring low privileges and no user interaction, with potential for high confidentiality, integrity, and availability impact.
A Unity Linux vulnerability requiring local access and low privileges, with high impact to confidentiality, integrity, and availability according to the listed CVSS v3 vector.
Linux kernel BPF out-of-bounds devmap write issue when deleting elements.
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.