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CVE-2024-36927 is an uninitialized-value access in the Linux kernel IPv4 packet-construction path. A race between changes to the IP_HDRINCL socket option and execution of __ip_make_skb() can cause the function to treat a socket buffer as containing an ICMP header when no such header is present. The fix uses FLOWI_FLAG_KNOWN_NH from the flow state instead of the mutable socket HDRINCL state, and explicitly initializes fl4_icmp_type and fl4_icmp_code in raw_sendmsg().
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No public exploit code observed for this vulnerability.
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11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel IPv4 networking vulnerability involving a race condition between IP_HDRINCL socket-option changes and __ip_make_skb(). The race can cause uninitialized memory access and potentially affect system availability.
An uninitialized-value access vulnerability in the Linux kernel IPv4 __ip_make_skb() path.
A Linux kernel IPv4 vulnerability involving access to an uninitialized value in the __ip_make_skb() function. The automated assessment labels the potential impact Moderate and derives flags including REMOTE, READ, KASAN, RACE, NETWORK, and SKB from patch data.
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.