Warning: Permanently added '10.128.0.92' (ECDSA) to the list of known hosts.
executing program
executing program
[   66.259881][ T7780] ------------[ cut here ]------------
[   66.267854][ T7780] percpu_ref_kill_and_confirm called more than once on io_ring_ctx_ref_free!
[   66.268088][ T7780] WARNING: CPU: 0 PID: 7780 at lib/percpu-refcount.c:335 percpu_ref_kill_and_confirm+0x341/0x3b0
[   66.290569][ T7780] Kernel panic - not syncing: panic_on_warn set ...
[   66.298538][ T7780] CPU: 0 PID: 7780 Comm: syz-executor050 Not tainted 5.1.0-rc5+ #77
[   66.310135][ T7780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   66.321874][ T7780] Call Trace:
[   66.325645][ T7780]  dump_stack+0x172/0x1f0
[   66.330351][ T7780]  ? percpu_ref_kill_and_confirm+0x340/0x3b0
[   66.337054][ T7780]  panic+0x2cb/0x65c
[   66.341709][ T7780]  ? __warn_printk+0xf3/0xf3
[   66.347016][ T7780]  ? percpu_ref_kill_and_confirm+0x341/0x3b0
[   66.353383][ T7780]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   66.360023][ T7780]  ? __warn.cold+0x5/0x45
[   66.364922][ T7780]  ? __warn+0xe8/0x1d0
[   66.369365][ T7780]  ? percpu_ref_kill_and_confirm+0x341/0x3b0
[   66.376885][ T7780]  __warn.cold+0x20/0x45
[   66.381631][ T7780]  ? vprintk_emit+0x1ce/0x6d0
[   66.387857][ T7780]  ? percpu_ref_kill_and_confirm+0x341/0x3b0
[   66.395326][ T7780]  report_bug+0x263/0x2b0
[   66.400907][ T7780]  do_error_trap+0x11b/0x200
[   66.405970][ T7780]  do_invalid_op+0x37/0x50
[   66.411126][ T7780]  ? percpu_ref_kill_and_confirm+0x341/0x3b0
[   66.418347][ T7780]  invalid_op+0x14/0x20
[   66.423277][ T7780] RIP: 0010:percpu_ref_kill_and_confirm+0x341/0x3b0
[   66.431405][ T7780] Code: 42 e0 2a 06 01 48 89 fa 48 c1 ea 03 80 3c 02 00 75 76 49 8b 54 24 10 48 c7 c6 a0 71 a1 87 48 c7 c7 40 71 a1 87 e8 ad 92 13 fe <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02
[   66.455221][ T7780] RSP: 0018:ffff88809926fce0 EFLAGS: 00010086
[   66.463587][ T7780] RAX: 0000000000000000 RBX: 0000607f5142e3ab RCX: 0000000000000000
[   66.473783][ T7780] RDX: 0000000000000000 RSI: ffffffff815afcf6 RDI: ffffed101324df8e
[   66.482782][ T7780] RBP: ffff88809926fd10 R08: ffff88808fc626c0 R09: fffffbfff1133639
[   66.492962][ T7780] R10: fffffbfff1133638 R11: ffffffff8899b1c3 R12: ffff888098230580
[   66.501113][ T7780] R13: ffff888098230588 R14: 0000000000000286 R15: 0000000000000000
[   66.511557][ T7780]  ? vprintk_func+0x86/0x189
[   66.517463][ T7780]  __io_uring_register+0xa7/0x1fe0
[   66.523347][ T7780]  ? __mutex_lock+0x3cd/0x1310
[   66.528750][ T7780]  ? __ia32_sys_io_uring_register+0x182/0x1f0
[   66.535355][ T7780]  ? mutex_trylock+0x1e0/0x1e0
[   66.540894][ T7780]  ? io_sq_wq_submit_work+0x10f0/0x10f0
[   66.546609][ T7780]  ? calculate_sigpending+0x87/0xa0
[   66.552314][ T7780]  __ia32_sys_io_uring_register+0x193/0x1f0
[   66.559239][ T7780]  do_fast_syscall_32+0x281/0xc98
[   66.565597][ T7780]  entry_SYSENTER_compat+0x70/0x7f
[   66.571720][ T7780] RIP: 0023:0xf7fa2869
[   66.576541][ T7780] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
[   66.597919][ T7780] RSP: 002b:00000000f7f7d1ec EFLAGS: 00000296 ORIG_RAX: 00000000000001ab
[   66.606533][ T7780] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000003
[   66.616445][ T7780] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   66.624861][ T7780] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   66.633314][ T7780] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   66.642625][ T7780] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   66.652874][ T7780] Kernel Offset: disabled
[   66.658840][ T7780] Rebooting in 86400 seconds..