The vulnerability of the reqsk_queue_hash_req() function in the net/ipv4/inet_connection_sock.c module of the IPv4 protocol implementation in Linux’s kernel, which allows an attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the reqskqueuehashreq function in the net/ipv4/inetconnectionsock.c module, part of the IPv4 protocol implementation in Linux kernel, relates to the use of memory after it is freed. Exploiting this vulnerability could allow a remote attacker to compromise the confidentiality,...

CVE-2026-53260: Use After Free

In the Linux kernel, the following vulnerability has been resolved: tcp: Add preemptdisable,enablenested in reqskqueuehashreq. syzbot reported a weird reqsk-rskrefcnt underflow in inetcskreqskqueuedrop. The captured reqskput in inetcskreqskqueuedrop is called only when it successfully removes req...