CVE-2026-53111

A flaw was found in the Linux kernel. The bpflwtxmitpushencap helper in the Berkeley Packet Filter BPF subsystem attempts to access an uninitialized network device structure during certain test runs. A local user can exploit this null pointer dereference by executing the bpflwtpushipencap functio...

CVE-2026-53111

In the Linux kernel, CVE-2026-53111 is a concrete issue in the BPF LWT encap path. The bug occurs in bpf_lwt_xmit_push_encap when skb_dst(skb)->dev is used to compute headroom, but skb->_skb_refdst may be uninitialized during bpf_prog_test_run_skb, causing a NULL pointer dereference and a k...