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CVE-2024-56633 is a Linux kernel flaw in tcp_bpf_sendmsg socket-memory accounting. In the __SK_REDIRECT and __SK_DROP paths, when apply_bytes is smaller than the socket message size, the affected logic can fail to uncharge all socket-message memory after a send error or message drop. The resulting inconsistent accounting can trigger an inet_sock_destruct warning during socket teardown.
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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.
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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.
A Linux kernel tcp_bpf socket-memory accounting flaw affecting redirect and drop processing in tcp_bpf_sendmsg. Incorrect uncharging when apply_bytes is used can result in inconsistent memory accounting and kernel warnings.
A vulnerability included in the AlmaLinux 9.6 security-check advisory.
Linux kernel vulnerability in tcp_bpf/tcp_bpf_sendmsg involving incorrect sk_mem_uncharge logic.
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.