[[0;32m OK [0m] Started Getty on tty2.
[[0;32m OK [0m] Started Serial Getty on ttyS0.
[[0;32m OK [0m] Started Getty on tty1.
[[0;32m OK [0m] Reached target Login Prompts.
[[0;32m OK [0m] Reached target Multi-User System.
[[0;32m OK [0m] Reached target Graphical Interface.
Starting Update UTMP about System Runlevel Changes...
[[0;32m OK [0m] Started Update UTMP about System Runlevel Changes.
Starting Load/Save RF Kill Switch Status...
[[0;32m OK [0m] Started Load/Save RF Kill Switch Status.
Debian GNU/Linux 9 syzkaller ttyS0
Warning: Permanently added '10.128.1.29' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [ 40.384137] kasan: CONFIG_KASAN_INLINE enabled
[ 40.388941] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 40.397052] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[ 40.403294] CPU: 0 PID: 6426 Comm: syz-executor867 Not tainted 4.19.114-syzkaller #0
[ 40.411294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 40.420747] RIP: 0010:get_unique_tuple+0x27a/0x1d50
[ 40.425755] Code: c1 e9 03 80 3c 11 00 0f 85 cd 17 00 00 4a 8b 14 e5 a0 0f 8e 89 4c 8d 24 c2 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 99 17 00 00 49 8b 04 24 48 89 85 08 ff ff ff e8
[ 40.445285] RSP: 0018:ffff888081686e18 EFLAGS: 00010246
[ 40.452933] RAX: dffffc0000000000 RBX: ffff888081686fc0 RCX: 1ffffffff131c299
[ 40.460200] RDX: 0000000000000000 RSI: ffffffff85d2a937 RDI: ffffffff898e14c8
[ 40.467451] RBP: ffff888081686f70 R08: ffff8880a561c0c0 R09: ffffed1015cc4733
[ 40.474707] R10: ffffed1015cc4732 R11: ffff8880ae623993 R12: 0000000000000000
[ 40.482099] R13: 0000000000000001 R14: ffff888081687010 R15: ffff8880a7e264c0
[ 40.489354] FS: 000000000250b880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
[ 40.497561] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 40.503513] CR2: 0000000020000280 CR3: 00000000932c7000 CR4: 00000000001406f0
[ 40.511043] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 40.518296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 40.525652] Call Trace:
[ 40.528241] ? find_held_lock+0x2d/0x110
[ 40.532290] ? nft_target_eval_bridge+0x330/0x330
[ 40.537115] ? nf_ct_invert_tuplepr+0x118/0x1f0
[ 40.541773] ? hash_by_src+0x3a0/0x3a0
[ 40.545658] ? lock_downgrade+0x740/0x740
[ 40.549807] ? check_preemption_disabled+0x41/0x280
[ 40.554810] nf_nat_setup_info+0x1c3/0x840
[ 40.559043] ? nf_nat_proto_clean+0x1f0/0x1f0
[ 40.563526] ? _raw_spin_unlock_irqrestore+0xa0/0xe0
[ 40.568626] ? save_stack+0x89/0xa0
[ 40.572234] ? kasan_kmalloc+0xbf/0xe0
[ 40.576105] ? kmem_cache_alloc+0x127/0x710
[ 40.580419] ? __nf_conntrack_alloc+0xd6/0x670
[ 40.584983] ? ctnetlink_create_conntrack+0xb1/0x1280
[ 40.590166] ? ctnetlink_new_conntrack+0x4f5/0xde0
[ 40.595091] ? nfnetlink_rcv_msg+0xc9e/0xf4b
[ 40.599494] ? netlink_rcv_skb+0x160/0x410
[ 40.603726] ? nfnetlink_rcv+0x1b2/0x420
[ 40.607771] ? netlink_unicast+0x4d7/0x6a0
[ 40.611988] ? netlink_sendmsg+0x80b/0xcd0
[ 40.616205] ? sock_sendmsg+0xcf/0x120
[ 40.620073] ? ___sys_sendmsg+0x803/0x920
[ 40.624204] ? __sys_sendmsg+0xec/0x1b0
[ 40.628174] ? do_syscall_64+0xf9/0x620
[ 40.632135] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 40.637484] __nf_nat_alloc_null_binding+0x164/0x1d0
[ 40.642571] ? nf_nat_setup_info+0x840/0x840
[ 40.646962] ? mark_held_locks+0xf0/0xf0
[ 40.651005] ? __lock_is_held+0xad/0x140
[ 40.655052] ? nft_target_eval_bridge+0x330/0x330
[ 40.659878] nfnetlink_parse_nat_setup+0x38f/0x410
[ 40.666442] ? nf_nat_inet_fn+0x8c0/0x8c0
[ 40.670575] ? __nf_conntrack_alloc+0xd6/0x670
[ 40.675155] ? __lock_is_held+0xad/0x140
[ 40.679201] ctnetlink_parse_nat_setup+0xb6/0x640
[ 40.684026] ctnetlink_create_conntrack+0x4b7/0x1280
[ 40.689113] ? ctnetlink_dump_table+0x11e0/0x11e0
[ 40.693960] ? __sanitizer_cov_trace_switch+0x45/0x70
[ 40.699136] ? hash_conntrack_raw+0x2d3/0x450
[ 40.703614] ? nf_ct_unconfirmed_destroy+0xa0/0xa0
[ 40.708540] ? __nf_conntrack_confirm+0x2fc0/0x2fc0
[ 40.713558] ctnetlink_new_conntrack+0x4f5/0xde0
[ 40.718299] ? ctnetlink_create_conntrack+0x1280/0x1280
[ 40.723644] ? mutex_trylock+0x1a0/0x1a0
[ 40.727706] ? __lock_is_held+0xad/0x140
[ 40.731750] ? check_preemption_disabled+0x41/0x280
[ 40.736749] ? ctnetlink_create_conntrack+0x1280/0x1280
[ 40.742879] nfnetlink_rcv_msg+0xc9e/0xf4b
[ 40.747102] ? nfnetlink_bind+0x2b0/0x2b0
[ 40.751237] ? __lock_acquire+0x6ee/0x49c0
[ 40.755456] ? __alloc_skb+0xef/0x5b0
[ 40.759328] ? cred_has_capability+0x162/0x2e0
[ 40.763894] ? cred_has_capability+0x16d/0x2e0
[ 40.768457] ? selinux_ipv4_output+0x50/0x50
[ 40.772848] ? selinux_ipv4_output+0x50/0x50
[ 40.777245] netlink_rcv_skb+0x160/0x410
[ 40.781290] ? nfnetlink_bind+0x2b0/0x2b0
[ 40.785421] ? netlink_ack+0xa60/0xa60
[ 40.789294] ? ns_capable_common+0xe2/0x100
[ 40.793600] nfnetlink_rcv+0x1b2/0x420
[ 40.797483] ? nfnetlink_rcv_batch+0x15e0/0x15e0
[ 40.802222] netlink_unicast+0x4d7/0x6a0
[ 40.806265] ? netlink_attachskb+0x710/0x710
[ 40.810668] netlink_sendmsg+0x80b/0xcd0
[ 40.814713] ? netlink_unicast+0x6a0/0x6a0
[ 40.818938] ? move_addr_to_kernel.part.0+0x110/0x110
[ 40.824125] ? netlink_unicast+0x6a0/0x6a0
[ 40.828342] sock_sendmsg+0xcf/0x120
[ 40.832038] ___sys_sendmsg+0x803/0x920
[ 40.836008] ? copy_msghdr_from_user+0x410/0x410
[ 40.840747] ? rcu_read_lock_sched_held+0x10a/0x130
[ 40.845749] ? kmem_cache_alloc+0x31b/0x710
[ 40.850056] ? percpu_counter_add_batch+0x123/0x180
[ 40.855058] ? alloc_empty_file+0xd7/0x170
[ 40.859290] ? find_held_lock+0x2d/0x110
[ 40.863352] ? __fd_install+0x1b4/0x610
[ 40.867427] ? __fget_light+0x1a2/0x230
[ 40.871487] __sys_sendmsg+0xec/0x1b0
[ 40.875740] ? __ia32_sys_shutdown+0x70/0x70
[ 40.880234] ? trace_hardirqs_on_thunk+0x1a/0x1c
[ 40.884977] ? trace_hardirqs_off_caller+0x55/0x210
[ 40.889978] ? do_syscall_64+0x21/0x620
[ 40.894022] do_syscall_64+0xf9/0x620
[ 40.897818] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 40.903002] RIP: 0033:0x440229
[ 40.906665] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[ 40.925887] RSP: 002b:00007fff6b1149b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 40.933583] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440229
[ 40.940834] RDX: 0000000000000000 RSI: 0000000020000640 RDI: 0000000000000003
[ 40.948104] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8
[ 40.955357] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401ab0
[ 40.962617] R13: 0000000000401b40 R14: 0000000000000000 R15: 0000000000000000
[ 40.969890] Modules linked in:
[ 40.980203] ---[ end trace 35bf5b0e9ca5d787 ]---
[ 40.985013] RIP: 0010:get_unique_tuple+0x27a/0x1d50
[ 40.990045] Code: c1 e9 03 80 3c 11 00 0f 85 cd 17 00 00 4a 8b 14 e5 a0 0f 8e 89 4c 8d 24 c2 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 99 17 00 00 49 8b 04 24 48 89 85 08 ff ff ff e8
[ 41.009906] RSP: 0018:ffff888081686e18 EFLAGS: 00010246
[ 41.015965] RAX: dffffc0000000000 RBX: ffff888081686fc0 RCX: 1ffffffff131c299
[ 41.023282] RDX: 0000000000000000 RSI: ffffffff85d2a937 RDI: ffffffff898e14c8
[ 41.030585] RBP: ffff888081686f70 R08: ffff8880a561c0c0 R09: ffffed1015cc4733
[ 41.037854] R10: ffffed1015cc4732 R11: ffff8880ae623993 R12: 0000000000000000
[ 41.045260] R13: 0000000000000001 R14: ffff888081687010 R15: ffff8880a7e264c0
[ 41.052585] FS: 000000000250b880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
[ 41.060947] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 41.066852] CR2: 00007ff69a3b5740 CR3: 00000000932c7000 CR4: 00000000001406f0
[ 41.074167] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 41.081471] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 41.088737] Kernel panic - not syncing: Fatal exception
[ 41.095254] Kernel Offset: disabled
[ 41.098900] Rebooting in 86400 seconds..