CVE-2026-80738

CVE-2026-80738 affects the Linux kernel BPF TCP SYN cookie helpers bpf_tcp_gen_syncookie and bpf_tcp_check_syncookie . These functions accept a socket pointer typed as ARG_PTR_TO_BTF_ID_SOCK_COMMON but dereference sk->sk_protocol —a field specific to full sockets—without first confirming the s...

EUVD-2026-70342

In the Linux kernel, the following vulnerability has been resolved: bpf: Check skstate before skprotocol in bpftcpsyncookie bpftcpgensyncookie and bpftcpchecksyncookie accept a socket pointer 'sk' with argument type ARGPTRTOBTFIDSOCKCOMMON. However, they access sk-skprotocol without validating...