Warning: Permanently added '10.128.0.153' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 92.980636][ T9844] ------------[ cut here ]------------ [ 92.986492][ T9844] ODEBUG: free active (active state 0) object type: timer_list hint: rfcomm_dlc_timeout+0x0/0xe0 [ 92.997904][ T9844] WARNING: CPU: 1 PID: 9844 at lib/debugobjects.c:485 debug_print_object+0x168/0x250 [ 93.007660][ T9844] Kernel panic - not syncing: panic_on_warn set ... [ 93.014248][ T9844] CPU: 1 PID: 9844 Comm: syz-executor885 Not tainted 5.6.0-rc1-syzkaller #0 [ 93.023010][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.033240][ T9844] Call Trace: [ 93.036536][ T9844] dump_stack+0x197/0x210 [ 93.040894][ T9844] ? debug_print_object+0x80/0x250 [ 93.046163][ T9844] panic+0x2e3/0x75c [ 93.050338][ T9844] ? add_taint.cold+0x16/0x16 [ 93.055379][ T9844] ? __kasan_check_write+0x14/0x20 [ 93.060535][ T9844] ? __warn.cold+0x14/0x3e [ 93.064974][ T9844] ? __warn+0xd9/0x1cf [ 93.069186][ T9844] ? debug_print_object+0x168/0x250 [ 93.074543][ T9844] __warn.cold+0x2f/0x3e [ 93.078791][ T9844] ? debug_print_object+0x168/0x250 [ 93.084059][ T9844] report_bug+0x289/0x300 [ 93.088947][ T9844] do_error_trap+0x11b/0x200 [ 93.093572][ T9844] do_invalid_op+0x37/0x50 [ 93.098335][ T9844] ? debug_print_object+0x168/0x250 [ 93.103619][ T9844] invalid_op+0x23/0x30 [ 93.107805][ T9844] RIP: 0010:debug_print_object+0x168/0x250 [ 93.113779][ T9844] Code: dd 40 dd 91 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 8b 14 dd 40 dd 91 88 48 c7 c7 a0 d2 91 88 e8 07 cf 9f fd <0f> 0b 83 05 43 cb ff 06 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 5d c3 [ 93.134289][ T9844] RSP: 0018:ffffc900062b7a48 EFLAGS: 00010086 [ 93.140345][ T9844] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 93.148389][ T9844] RDX: 0000000000000000 RSI: ffffffff815eab26 RDI: fffff52000c56f3b [ 93.156446][ T9844] RBP: ffffc900062b7a88 R08: ffff888096d745c0 R09: ffffed1015d245c9 [ 93.164530][ T9844] R10: ffffed1015d245c8 R11: ffff8880ae922e43 R12: 0000000000000001 [ 93.172498][ T9844] R13: ffffffff89bb6a60 R14: ffffffff81648520 R15: ffff8880a8880620 [ 93.180494][ T9844] ? calc_wheel_index+0x220/0x220 [ 93.185634][ T9844] ? vprintk_func+0x86/0x189 [ 93.190250][ T9844] ? debug_print_object+0x168/0x250 [ 93.195496][ T9844] debug_check_no_obj_freed+0x2d6/0x441 [ 93.201111][ T9844] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 93.206696][ T9844] kfree+0xf8/0x2c0 [ 93.210506][ T9844] rfcomm_dlc_free+0x20/0x30 [ 93.215097][ T9844] rfcomm_dev_ioctl+0x1b9d/0x1e80 [ 93.220190][ T9844] ? mark_held_locks+0xa4/0xf0 [ 93.225043][ T9844] ? lock_sock_nested+0xe2/0x120 [ 93.229974][ T9844] ? rfcomm_tty_install+0x1e0/0x1e0 [ 93.235233][ T9844] ? lock_sock_nested+0x9a/0x120 [ 93.240168][ T9844] ? trace_hardirqs_on+0x67/0x240 [ 93.245200][ T9844] ? __local_bh_enable_ip+0x15a/0x270 [ 93.250608][ T9844] rfcomm_sock_ioctl+0x90/0xb0 [ 93.255500][ T9844] sock_do_ioctl+0xd8/0x2f0 [ 93.259996][ T9844] ? compat_ifr_data_ioctl+0x160/0x160 [ 93.265532][ T9844] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 93.271433][ T9844] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 93.277720][ T9844] ? do_vfs_ioctl+0x568/0x13b0 [ 93.282486][ T9844] ? ioctl_file_clone+0x180/0x180 [ 93.287511][ T9844] sock_ioctl+0x3ed/0x790 [ 93.291856][ T9844] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.298103][ T9844] ? dlci_ioctl_set+0x40/0x40 [ 93.302822][ T9844] ? tomoyo_file_ioctl+0x23/0x30 [ 93.307752][ T9844] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.313995][ T9844] ? security_file_ioctl+0x8d/0xc0 [ 93.319252][ T9844] ? dlci_ioctl_set+0x40/0x40 [ 93.323931][ T9844] ksys_ioctl+0x123/0x180 [ 93.328259][ T9844] __x64_sys_ioctl+0x73/0xb0 [ 93.332872][ T9844] do_syscall_64+0xfa/0x790 [ 93.337378][ T9844] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.343410][ T9844] RIP: 0033:0x4412c9 [ 93.347296][ T9844] Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 9b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 93.367011][ T9844] RSP: 002b:00007ffe0f4c0ce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 93.375417][ T9844] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412c9 [ 93.383387][ T9844] RDX: 0000000020000100 RSI: 00000000400452c8 RDI: 0000000000000005 [ 93.391447][ T9844] RBP: 0000000000016b09 R08: 00000000004002c8 R09: 00000000004002c8 [ 93.399594][ T9844] R10: 00000000004002c8 R11: 0000000000000246 R12: 00000000004020f0 [ 93.407630][ T9844] R13: 0000000000402180 R14: 0000000000000000 R15: 0000000000000000 [ 93.417710][ T9844] Kernel Offset: disabled [ 93.422143][ T9844] Rebooting in 86400 seconds..