device nr0
 entered promiscuous mode
WARNING: CPU: 1 PID: 18872 at net/core/flow_dissector.c:764 __skb_flow_dissect+0xdee/0x5c30 net/core/flow_dissector.c:764
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 18872 Comm: syz-executor3 Not tainted 4.20.0+ #110
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d3/0x2c6 lib/dump_stack.c:113
 panic+0x2ad/0x55f kernel/panic.c:189
 __warn.cold.8+0x20/0x52 kernel/panic.c:544
 report_bug+0x254/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271
 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:290
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:__skb_flow_dissect+0xdee/0x5c30 net/core/flow_dissector.c:764
Code: e8 f8 ff ff c7 03 f8 f8 f8 f8 48 c1 e8 03 48 01 d0 ba f8 f8 ff ff c7 00 f8 f8 f8 f8 66 89 50 04 e9 3d 09 00 00 e8 92 23 60 fb <0f> 0b e8 8b 23 60 fb e8 76 7b 49 fb 31 ff 41 89 c4 89 c6 e8 8a 24
RSP: 0018:ffff88806776ef80 EFLAGS: 00010212
RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9000c032000
RDX: 000000000000019e RSI: ffffffff8621825e RDI: ffff88808a672658
RBP: ffff88806776f710 R08: ffff888085d8c500 R09: ffffed1015ce5b8f
R10: ffffed1015ce5b8f R11: ffff8880ae72dc7b R12: ffffffff8a3a9c64
R13: 0000000000000001 R14: ffff88806776fb10 R15: ffff88808a672640
 skb_flow_dissect_flow_keys_basic include/linux/skbuff.h:1254 [inline]
 skb_probe_transport_header include/linux/skbuff.h:2435 [inline]
 tun_get_user+0x2ce4/0x4200 drivers/net/tun.c:1930
 tun_chr_write_iter+0xb9/0x160 drivers/net/tun.c:2017
 call_write_iter include/linux/fs.h:1857 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x6b8/0x9f0 fs/read_write.c:487
 vfs_write+0x1fc/0x560 fs/read_write.c:549
 ksys_write+0x101/0x260 fs/read_write.c:598
 __do_sys_write fs/read_write.c:610 [inline]
 __se_sys_write fs/read_write.c:607 [inline]
 __x64_sys_write+0x73/0xb0 fs/read_write.c:607
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457ec9
Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fcff29acc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9
RDX: 0000000000000081 RSI: 0000000020000000 RDI: 000000000000000f
RBP: 000000000073c040 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcff29ad6d4
R13: 00000000004c6fc2 R14: 00000000004dc520 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..