------------[ cut here ]------------ WARNING: CPU: 0 PID: 13775 at net/core/dev.c:2490 skb_warn_bad_offload+0x2b0/0x390 net/core/dev.c:2490 lo: caps=(0x000000a2803b7c69, 0x0000000000000000) len=4086 data_len=3768 gso_size=274 gso_type=4 ip_summed=0 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 13775 Comm: syz-executor.1 Not tainted 4.9.202+ #0 ffff8801abd67238 ffffffff81b55d2b ffff8801abd67300 ffffffff82a3b700 00000000ffffffff 0000000000000000 0000000000000009 ffff8801abd67318 ffffffff813fef21 0000000041b58ab3 ffffffff82e316f3 ffffffff813fed41 Call Trace: [<00000000a67d0786>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000a67d0786>] dump_stack+0xcb/0x130 lib/dump_stack.c:56 [<000000006bdb9e00>] panic+0x1e0/0x3c4 kernel/panic.c:181 [<000000003e46d773>] __warn.cold+0x2f/0x2f kernel/panic.c:547 [<00000000daa9454c>] warn_slowpath_fmt+0xc2/0x100 kernel/panic.c:570 [<000000000d15126c>] skb_warn_bad_offload+0x2b0/0x390 net/core/dev.c:2490 [<0000000052c0ea65>] __skb_gso_segment+0x597/0x6c0 net/core/dev.c:2796 [<000000008aabc0da>] skb_gso_segment include/linux/netdevice.h:4010 [inline] [<000000008aabc0da>] validate_xmit_skb+0x4a1/0xaa0 net/core/dev.c:3032 [<000000004c33a745>] __dev_queue_xmit+0x83e/0x1bd0 net/core/dev.c:3465 [<0000000060267736>] dev_queue_xmit+0x18/0x20 net/core/dev.c:3506 [<00000000c28b7423>] packet_snd net/packet/af_packet.c:2990 [inline] [<00000000c28b7423>] packet_sendmsg+0x24e0/0x47c0 net/packet/af_packet.c:3015 [<00000000b9c33770>] sock_sendmsg_nosec net/socket.c:649 [inline] [<00000000b9c33770>] sock_sendmsg+0xbe/0x110 net/socket.c:659 [<00000000a8118476>] kernel_sendmsg+0x44/0x50 net/socket.c:667 [<00000000d12bb27d>] sock_no_sendpage+0x116/0x150 net/core/sock.c:2340 [<00000000a698fc61>] kernel_sendpage+0x95/0xf0 net/socket.c:3326 [<0000000027ce5f0b>] sock_sendpage+0x8b/0xc0 net/socket.c:803 [<00000000cdeced2d>] pipe_to_sendpage+0x28d/0x3d0 fs/splice.c:470 [<00000000a3b0523a>] splice_from_pipe_feed fs/splice.c:521 [inline] [<00000000a3b0523a>] __splice_from_pipe+0x351/0x790 fs/splice.c:645 [<00000000d0ba1b1b>] splice_from_pipe+0x108/0x170 fs/splice.c:680 [<000000006352bd2e>] generic_splice_sendpage+0x3c/0x50 fs/splice.c:851 [<00000000cf1d7c0d>] do_splice_from fs/splice.c:870 [inline] [<00000000cf1d7c0d>] do_splice fs/splice.c:1166 [inline] [<00000000cf1d7c0d>] SYSC_splice fs/splice.c:1416 [inline] [<00000000cf1d7c0d>] SyS_splice+0xe02/0x14c0 fs/splice.c:1399 [<000000007118ebea>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000879cd495>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Kernel Offset: disabled Rebooting in 86400 seconds..