input: syz1 as /devices/virtual/input/input4992
input: syz1 as /devices/virtual/input/input4993
------------[ cut here ]------------
WARNING: CPU: 0 PID: 25898 at net/core/dev.c:2490 skb_warn_bad_offload+0x2b0/0x390 net/core/dev.c:2490
lo: caps=(0x000000a2803b7c69, 0x0000000000000000) len=65269 data_len=65079 gso_size=146 gso_type=4 ip_summed=0
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 25898 Comm: syz-executor.4 Not tainted 4.9.194+ #0
 ffff88019ff57458 ffffffff81b67001 ffff88019ff57500 ffffffff82a3b3c0
 00000000ffffffff 0000000000000000 0000000000000009 ffff88019ff57538
 ffffffff813fef3a 0000000041b58ab3 ffffffff82e32f55 ffffffff813fed61
Call Trace:
 [<00000000f1b2d427>] __dump_stack lib/dump_stack.c:15 [inline]
 [<00000000f1b2d427>] dump_stack+0xc1/0x120 lib/dump_stack.c:51
 [<00000000efd20d2d>] panic+0x1d9/0x3bd kernel/panic.c:180
 [<000000009e8a880d>] __warn.cold+0x2f/0x2f kernel/panic.c:546
 [<0000000094241d73>] warn_slowpath_fmt+0xc2/0x100 kernel/panic.c:569
 [<00000000f423bf38>] skb_warn_bad_offload+0x2b0/0x390 net/core/dev.c:2490
 [<00000000fedb1ad7>] __skb_gso_segment+0x597/0x6c0 net/core/dev.c:2796
 [<00000000778d871f>] skb_gso_segment include/linux/netdevice.h:4010 [inline]
 [<00000000778d871f>] validate_xmit_skb+0x4a1/0xaa0 net/core/dev.c:3032
 [<0000000034f40733>] __dev_queue_xmit+0x83e/0x1bd0 net/core/dev.c:3465
 [<00000000d4d4a477>] dev_queue_xmit+0x18/0x20 net/core/dev.c:3506
 [<00000000b83facbf>] packet_snd net/packet/af_packet.c:2990 [inline]
 [<00000000b83facbf>] packet_sendmsg+0x24e8/0x47d0 net/packet/af_packet.c:3015
 [<0000000082b413e4>] sock_sendmsg_nosec net/socket.c:649 [inline]
 [<0000000082b413e4>] sock_sendmsg+0xbe/0x110 net/socket.c:659
 [<0000000097efc03a>] sock_write_iter+0x235/0x3d0 net/socket.c:857
 [<00000000d9b1225e>] new_sync_write fs/read_write.c:498 [inline]
 [<00000000d9b1225e>] __vfs_write+0x3c1/0x560 fs/read_write.c:511
 [<000000000c07cfb2>] vfs_write+0x185/0x520 fs/read_write.c:559
 [<0000000079f81a9a>] SYSC_write fs/read_write.c:607 [inline]
 [<0000000079f81a9a>] SyS_write+0x121/0x270 fs/read_write.c:599
 [<000000000ff977d1>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288
 [<000000007dfc9002>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Kernel Offset: disabled
Rebooting in 86400 seconds..