Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.1.74' (ECDSA) to the list of known hosts.
executing program
executing program
executing program
executing program
executing program
executing program
syzkaller login: [   33.206048] hrtimer: interrupt took 53128 ns
[   33.401645] WARNING: CPU: 1 PID: 8103 at kernel/signal.c:372 task_participate_group_stop+0x29e/0x300
[   33.411086] Kernel panic - not syncing: panic_on_warn set ...
[   33.411086] 
[   33.418461] CPU: 1 PID: 8103 Comm: 3 Not tainted 4.19.211-syzkaller #0
[   33.425129] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
[   33.434487] Call Trace:
[   33.437084]  dump_stack+0x1fc/0x2ef
[   33.440718]  panic+0x26a/0x50e
[   33.443954]  ? __warn_printk+0xf3/0xf3
executing program
executing program
[   33.447864]  ? task_participate_group_stop+0x29e/0x300
[   33.453159]  ? __probe_kernel_read+0x130/0x1b0
[   33.457747]  ? __warn.cold+0x5/0x5a
[   33.461377]  ? __warn+0xe4/0x200
[   33.464760]  ? task_participate_group_stop+0x29e/0x300
[   33.470049]  __warn.cold+0x20/0x5a
[   33.473608]  ? task_participate_group_stop+0x29e/0x300
[   33.478902]  report_bug+0x262/0x2b0
[   33.482548]  do_error_trap+0x1d7/0x310
[   33.486487]  ? math_error+0x310/0x310
[   33.490299]  ? check_preemption_disabled+0x41/0x280
[   33.495326]  ? error_entry+0x72/0xd0
executing program
executing program
[   33.499061]  ? trace_hardirqs_off_caller+0x2c/0x210
[   33.504092]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   33.508956]  invalid_op+0x14/0x20
[   33.512427] RIP: 0010:task_participate_group_stop+0x29e/0x300
[   33.518320] Code: 00 f0 83 44 24 fc 00 be 15 00 00 00 4c 89 ef e8 a8 25 0e 00 e9 4c fe ff ff e8 4e a0 27 00 0f 0b e9 f2 fd ff ff e8 42 a0 27 00 <0f> 0b e9 a3 fe ff ff 48 89 ef e8 93 7c 5d 00 e9 6d fe ff ff 48 89
[   33.537319] RSP: 0018:ffff88809563fbd0 EFLAGS: 00010093
[   33.542699] RAX: ffff8880b15d60c0 RBX: 0000000000000000 RCX: ffffffff813ae3c0
executing program
[   33.549975] RDX: 0000000000000000 RSI: ffffffff813ae52e RDI: 0000000000000005
[   33.557251] RBP: ffff8880abce0d20 R08: 0000000000000001 R09: 0000000000000000
[   33.564528] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880abce0c80
[   33.571812] R13: ffff8880b15d6540 R14: 0000000000040000 R15: 0000000000000000
[   33.579108]  ? task_participate_group_stop+0x130/0x300
[   33.584393]  ? task_participate_group_stop+0x29e/0x300
[   33.589682]  do_signal_stop+0x1f1/0x860
[   33.593667]  get_signal+0xf17/0x1f70
[   33.597388]  ? check_preemption_disabled+0x41/0x280
[   33.602422]  do_signal+0x8f/0x1670
[   33.605966]  ? setup_sigcontext+0x820/0x820
[   33.610292]  ? __do_execve_file+0x2ba/0x2360
[   33.614713]  ? open_exec+0x70/0x70
[   33.618264]  ? __sanitizer_cov_trace_switch+0x4b/0x80
[   33.623452]  ? __phys_addr+0x9a/0x110
[   33.627259]  ? __check_object_size+0x17b/0x3e0
[   33.631853]  ? exit_to_usermode_loop+0x36/0x2a0
[   33.636538]  exit_to_usermode_loop+0x204/0x2a0
[   33.641133]  do_syscall_64+0x538/0x620
[   33.645032]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   33.650223] RIP: 0033:0x7ff6e75dc120
[   33.653936] Code: Bad RIP value.
[   33.657295] RSP: 002b:00007fff2fddd360 EFLAGS: 00000200 ORIG_RAX: 000000000000003b
[   33.665002] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   33.672285] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   33.679557] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   33.686834] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   33.694107] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   33.701786] Kernel Offset: disabled
[   33.705566] Rebooting in 86400 seconds..