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CVE-2024-42246 is an infinite-loop denial-of-service vulnerability in the Linux kernel SunRPC TCP socket setup path. When a BPF program attached to kernel_connect() rejects a connection and returns -EPERM, xs_tcp_setup_socket() does not handle that error as a terminal network connection failure. The function can repeatedly retry socket setup, generating excessive syslog output and potentially causing the kernel to become unresponsive. The fix remaps -EPERM to -ECONNREFUSED for consistent handling by upper networking layers.
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4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel net/sunrpc flaw involving EPERM handling after connection failures in xs_tcp_setup_socket.
A vulnerability addressed by the updated Red Hat Enterprise Linux 9 el9/flatpak-sdk container image; no technical details are provided in this advisory.
Linux kernel networking/SunRPC error-handling issue in xs_tcp_setup_socket during connection failures.
A Linux kernel networking/SUNRPC issue involving EPERM handling after connection failure in xs_tcp_setup_socket.
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.