IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5767 at net/core/dev.c:2473 skb_warn_bad_offload+0x2af/0x380 net/core/dev.c:2468 veth0: caps=(0x00000c229fbb59e9, 0x0000000000000000) len=64831 data_len=64741 gso_size=49152 gso_type=5 ip_summed=0 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 5767 Comm: syz-executor5 Not tainted 4.9.97-g1321d42 #16 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801b44ef490 ffffffff81eb0b69 ffffffff83c484a0 00000000ffffffff 0000000000000000 0000000000000000 00000000000009a9 ffff8801b44ef550 ffffffff8141f975 0000000041b58ab3 ffffffff843b8408 ffffffff8141f7b6 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] panic+0x1bf/0x3bc kernel/panic.c:179 [] __warn.cold.9+0xc1/0x17f kernel/panic.c:542 [] warn_slowpath_fmt+0xc2/0x100 kernel/panic.c:565 [] skb_warn_bad_offload+0x2af/0x380 net/core/dev.c:2468 [] __skb_gso_segment+0x546/0x680 net/core/dev.c:2774 [] skb_gso_segment include/linux/netdevice.h:4000 [inline] [] validate_xmit_skb+0x48e/0xab0 net/core/dev.c:3010 [] __dev_queue_xmit+0x888/0x2080 net/core/dev.c:3443 [] dev_queue_xmit+0x17/0x20 net/core/dev.c:3484 [] packet_snd net/packet/af_packet.c:2960 [inline] [] packet_sendmsg+0x1eff/0x4470 net/packet/af_packet.c:2985 [] sock_sendmsg_nosec net/socket.c:635 [inline] [] sock_sendmsg+0xcc/0x110 net/socket.c:645 [] SYSC_sendto+0x21c/0x370 net/socket.c:1670 [] SyS_sendto+0x40/0x50 net/socket.c:1638 [] do_syscall_32_irqs_on arch/x86/entry/common.c:325 [inline] [] do_fast_syscall_32+0x2f7/0x870 arch/x86/entry/common.c:387 [] entry_SYSENTER_compat+0x90/0xa2 arch/x86/entry/entry_64_compat.S:137 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..