af_packet fanout

  1. CVE-2026-31504: AF_PACKET fanout race can trigger kernel use-after-free

    The Linux kernel’s networking stack has a new memory-safety problem on its hands, and this one sits in an especially sensitive place: AF_PACKET fanout teardown. CVE-2026-31504 describes a race in packet_release where a concurrent NETDEV_UP event can re-register a socket into a fanout group after...
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    • af_packet fanout cve 2026 linux kernel memory safety
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    • Forum: Security Alerts