WARNING: CPU: 1 PID: 8216 at net/core/flow_dissector.c:764 __skb_flow_dissect+0xd39/0x5ad0 net/core/flow_dissector.c:764
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 8216 Comm: syz-executor1 Not tainted 4.20.0+ #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'loop5' (00000000725c2259): kobject_uevent_env
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1db/0x2d0 lib/dump_stack.c:113
kobject: 'loop5' (00000000725c2259): fill_kobj_path: path = '/devices/virtual/block/loop5'
 panic+0x2cb/0x589 kernel/panic.c:189
 __warn.cold+0x20/0x4b kernel/panic.c:544
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:290
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:__skb_flow_dissect+0xd39/0x5ad0 net/core/flow_dissector.c:764
Code: c8 65 48 33 34 25 28 00 00 00 0f 85 3d 44 00 00 48 8d 65 d0 5b 41 5a 41 5c 41 5d 41 5e 41 5f 5d 49 8d 62 f8 c3 e8 67 51 62 fb <0f> 0b e8 60 51 62 fb e8 5b ac 4b fb 31 ff 89 c3 89 c6 e8 d0 52 62
RSP: 0018:ffff888065cef420 EFLAGS: 00010212
RAX: 0000000000040000 RBX: 0000000000000001 RCX: ffffc9000800e000
RDX: 0000000000000246 RSI: ffffffff861f54a9 RDI: ffff88808d2357d8
RBP: ffff888065cef8c0 R08: ffff888056fe4340 R09: ffffed1015ce5b90
R10: ffffed1015ce5b8f R11: ffff8880ae72dc7b R12: 0000000000000000
R13: ffffffff8a5b68e4 R14: ffff888065cefb70 R15: ffff88808d2357c0
 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+0x297f/0x4150 drivers/net/tun.c:1930
 tun_chr_write_iter+0xbd/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+0x6e5/0xa80 fs/read_write.c:487
 vfs_write+0x20c/0x560 fs/read_write.c:549
 ksys_write+0x105/0x260 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+0x1a3/0x800 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:00007f7184dd8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9
RDX: 000000000000017b RSI: 0000000020000000 RDI: 000000000000000d
RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7184dd96d4
R13: 00000000004c71ea R14: 00000000004dcad0 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..