CVE-2026-5590 — net: ip/tcp: Null pointer dereference can be triggered by a race condition
A race condition during TCP connection teardown can cause tcp_recv() to operate on a connection that has already been released. If tcp_conn_search() returns NULL while processin…
Published: 2026-04-05 · CVSS: 6.4 · CVSS 3.1
A race condition during TCP connection teardown can cause tcp_recv() to operate on a connection that has already been released. If tcp_conn_search() returns NULL while processing a SYN packet, a NULL pointer derived from stale context data is passed to tcp_backlog_is_full() and dereferenced without validation, leading to a crash.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7