CVE-2026-64575

The CVE-2026-64575 issue affects the Linux kernel’s BPF TCP batch iterator. The root cause is a double release of socket references during batch realloc; on realloc failure, cur_sk/end_sk remain and later code dereferences a cookie as a struct sock, causing a null-ptr-deref in __sock_gen_cookie a...

EUVD-2026-53269

In the Linux kernel, the following vulnerability has been resolved: bpf: tcp: fix double sock release on batch realloc bpfitertcpbatch releases the current batch via bpfitertcpputbatch, which drops the socket refs and rewrites each slot with the socket cookie, then grows the batch. cursk/endsk ar...