[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
[  OK  ] Started Update UTMP about System Runlevel Changes.
         Starting Load/Save RF Kill Switch Status...
[  OK  ] Started Load/Save RF Kill Switch Status.

Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.1.7' (ECDSA) to the list of known hosts.
executing program
executing program
syzkaller login: [   45.230117] list_del corruption, ffff8880afd1fa70->next is LIST_POISON1 (dead000000000100)
[   45.238881] ------------[ cut here ]------------
[   45.243620] kernel BUG at lib/list_debug.c:45!
[   45.248189] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   45.253537] CPU: 0 PID: 8126 Comm: syz-executor566 Not tainted 4.19.211-syzkaller #0
[   45.261401] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   45.270747] RIP: 0010:__list_del_entry_valid.cold+0x23/0x4a
[   45.276455] Code: e8 11 43 f7 ff 0f 0b 48 89 ee 48 c7 c7 40 e4 b3 88 e8 00 43 f7 ff 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 80 e3 b3 88 e8 ec 42 f7 ff <0f> 0b 4c 89 e2 48 89 ee 48 c7 c7 e0 e3 b3 88 e8 d8 42 f7 ff 0f 0b
[   45.295333] RSP: 0018:ffff8880afd1f950 EFLAGS: 00010086
[   45.300676] RAX: 000000000000004e RBX: ffff8880afd1fa58 RCX: 0000000000000000
[   45.307923] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1015fa3f1c
[   45.315169] RBP: ffff8880afd1fa70 R08: 000000000000004e R09: 0000000000000000
[   45.322414] R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200
[   45.329661] R13: dead000000000100 R14: ffff8880afd1fa78 R15: 0000000000000007
[   45.336910] FS:  00007f372240b700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
[   45.345131] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.350989] CR2: 0000000020400000 CR3: 000000009b222000 CR4: 00000000003406f0
[   45.358236] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   45.365501] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   45.372746] Call Trace:
[   45.375324]  remove_wait_queue+0x2c/0x180
[   45.379454]  ? lockdep_hardirqs_on+0x3a8/0x5c0
[   45.384015]  __tipc_sendstream+0x373/0x9d0
[   45.388249]  ? tipc_sendmsg+0x70/0x70
[   45.392032]  ? do_wait_intr_irq+0x270/0x270
[   45.396335]  ? mark_held_locks+0xa6/0xf0
[   45.400376]  ? __local_bh_enable_ip+0x159/0x270
[   45.405022]  tipc_sendstream+0x4c/0x70
[   45.408910]  ? __tipc_sendstream+0x9d0/0x9d0
[   45.413298]  sock_sendmsg+0xc3/0x120
[   45.416994]  ___sys_sendmsg+0x7bb/0x8e0
[   45.420944]  ? copy_msghdr_from_user+0x440/0x440
[   45.425694]  ? __fget+0x32f/0x510
[   45.429127]  ? lock_downgrade+0x720/0x720
[   45.433258]  ? check_preemption_disabled+0x41/0x280
[   45.438266]  ? check_preemption_disabled+0x41/0x280
[   45.443259]  ? __fget+0x356/0x510
[   45.446691]  ? do_dup2+0x450/0x450
[   45.450210]  ? __fdget+0x1d0/0x230
[   45.453729]  __x64_sys_sendmsg+0x132/0x220
[   45.457955]  ? __sys_sendmsg+0x1b0/0x1b0
[   45.462003]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[   45.467361]  ? trace_hardirqs_off_caller+0x6e/0x210
[   45.472354]  ? do_syscall_64+0x21/0x620
[   45.476318]  do_syscall_64+0xf9/0x620
[   45.480112]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   45.485278] RIP: 0033:0x7f372249bb69
[   45.488968] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[   45.507846] RSP: 002b:00007f372240b308 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   45.515530] RAX: ffffffffffffffda RBX: 00007f3722523428 RCX: 00007f372249bb69
[   45.522779] RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004
[   45.530031] RBP: 00007f3722523420 R08: 00007f372240b700 R09: 0000000000000000
[   45.537278] R10: 00007f372240b700 R11: 0000000000000246 R12: 00007f372252342c
[   45.544542] R13: 00007f37224f1074 R14: 70756f7267632f2e R15: 0000000000022000
[   45.551789] Modules linked in:
[   45.554967] ---[ end trace 4b8f6bbc64f67f4c ]---
[   45.559704] RIP: 0010:__list_del_entry_valid.cold+0x23/0x4a
[   45.565396] Code: e8 11 43 f7 ff 0f 0b 48 89 ee 48 c7 c7 40 e4 b3 88 e8 00 43 f7 ff 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 80 e3 b3 88 e8 ec 42 f7 ff <0f> 0b 4c 89 e2 48 89 ee 48 c7 c7 e0 e3 b3 88 e8 d8 42 f7 ff 0f 0b
[   45.584274] RSP: 0018:ffff8880afd1f950 EFLAGS: 00010086
[   45.589615] RAX: 000000000000004e RBX: ffff8880afd1fa58 RCX: 0000000000000000
[   45.596866] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1015fa3f1c
[   45.604115] RBP: ffff8880afd1fa70 R08: 000000000000004e R09: 0000000000000000
[   45.611364] R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200
[   45.618611] R13: dead000000000100 R14: ffff8880afd1fa78 R15: 0000000000000007
[   45.625887] FS:  00007f372240b700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
[   45.634090] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.639950] CR2: 0000000020400000 CR3: 000000009b222000 CR4: 00000000003406f0
[   45.647200] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   45.654453] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   45.661699] Kernel panic - not syncing: Fatal exception
[   45.667213] Kernel Offset: disabled
[   45.670821] Rebooting in 86400 seconds..