Warning: Permanently added '10.128.10.35' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 73.479853][ T9733] ------------[ cut here ]------------ [ 73.485343][ T9733] ODEBUG: free active (active state 0) object type: timer_list hint: rfcomm_dlc_timeout+0x0/0x80 [ 73.495965][ T9733] WARNING: CPU: 1 PID: 9733 at lib/debugobjects.c:484 debug_check_no_obj_freed+0x464/0x5b0 [ 73.505921][ T9733] Kernel panic - not syncing: panic_on_warn set ... [ 73.512499][ T9733] CPU: 1 PID: 9733 Comm: syz-executor361 Not tainted 5.3.0-rc1+ #51 [ 73.520498][ T9733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.530548][ T9733] Call Trace: [ 73.533825][ T9733] dump_stack+0x1d8/0x2f8 [ 73.538147][ T9733] panic+0x29b/0x7d9 [ 73.542038][ T9733] ? __warn+0x126/0x230 [ 73.546185][ T9733] ? nmi_panic+0x97/0x97 [ 73.550523][ T9733] ? __probe_kernel_read+0x14b/0x1a0 [ 73.555801][ T9733] ? debug_check_no_obj_freed+0x464/0x5b0 [ 73.561847][ T9733] ? is_valid_bugaddr+0x81/0x100 [ 73.566776][ T9733] __warn+0x22f/0x230 [ 73.570742][ T9733] ? debug_check_no_obj_freed+0x464/0x5b0 [ 73.576445][ T9733] report_bug+0x190/0x290 [ 73.580752][ T9733] ? debug_check_no_obj_freed+0x464/0x5b0 [ 73.586451][ T9733] do_error_trap+0xd7/0x440 [ 73.590990][ T9733] do_invalid_op+0x36/0x40 [ 73.595394][ T9733] ? debug_check_no_obj_freed+0x464/0x5b0 [ 73.601182][ T9733] invalid_op+0x23/0x30 [ 73.605332][ T9733] RIP: 0010:debug_check_no_obj_freed+0x464/0x5b0 [ 73.611641][ T9733] Code: 08 48 89 df e8 3d e4 49 fe 4c 8b 03 48 c7 c7 ca 56 88 88 48 c7 c6 fd f1 a0 88 4c 89 e2 44 89 f9 4d 89 e9 31 c0 e8 ac 4f e0 fd <0f> 0b 4c 8b 6d a8 ff 05 b4 74 95 05 49 83 c5 30 4c 89 e8 48 c1 e8 [ 73.631232][ T9733] RSP: 0018:ffff8880894377d0 EFLAGS: 00010046 [ 73.637278][ T9733] RAX: 92f2fb325ff52d00 RBX: ffffffff88cd9fc0 RCX: ffff888092e64300 [ 73.645361][ T9733] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 73.653328][ T9733] RBP: ffff888089437868 R08: ffffffff816063f4 R09: ffffed1015d640c2 [ 73.661333][ T9733] R10: ffffed1015d640c2 R11: 0000000000000000 R12: ffffffff8893f19f [ 73.669386][ T9733] R13: ffffffff86f3c250 R14: dffffc0000000000 R15: 0000000000000000 [ 73.677359][ T9733] ? rfcomm_dlc_alloc+0x3a0/0x3a0 [ 73.682480][ T9733] ? vprintk_emit+0x2d4/0x3a0 [ 73.687209][ T9733] ? rfcomm_dlc_free+0x1e/0x30 [ 73.691965][ T9733] kfree+0x107/0x200 [ 73.695929][ T9733] rfcomm_dlc_free+0x1e/0x30 [ 73.700609][ T9733] rfcomm_dev_ioctl+0xc7e/0x1e60 [ 73.705592][ T9733] ? trace_lock_release+0x135/0x1a0 [ 73.710940][ T9733] ? rfcomm_sock_debugfs_show+0x140/0x140 [ 73.716745][ T9733] ? trace_lock_acquire+0x159/0x1d0 [ 73.722005][ T9733] ? __local_bh_enable_ip+0x13a/0x240 [ 73.727377][ T9733] ? check_preemption_disabled+0x47/0x2a0 [ 73.733091][ T9733] ? trace_irq_enable_rcuidle+0x23/0x1e0 [ 73.738767][ T9733] ? local_bh_enable+0x9/0x30 [ 73.743433][ T9733] ? __local_bh_enable_ip+0x13a/0x240 [ 73.748800][ T9733] ? local_bh_enable+0x1f/0x30 [ 73.753553][ T9733] ? lock_sock_nested+0xd6/0x120 [ 73.758506][ T9733] rfcomm_sock_ioctl+0x7e/0xa0 [ 73.763296][ T9733] sock_do_ioctl+0xd6/0x300 [ 73.767912][ T9733] ? sock_splice_read+0xf0/0xf0 [ 73.772750][ T9733] ? __lock_acquire+0x4750/0x4750 [ 73.777850][ T9733] ? trace_irq_enable_rcuidle+0x23/0x1e0 [ 73.783505][ T9733] ? trace_hardirqs_on+0x74/0x80 [ 73.788430][ T9733] sock_ioctl+0x4f8/0x730 [ 73.792876][ T9733] ? sock_poll+0x310/0x310 [ 73.797281][ T9733] ? tomoyo_check_path_acl+0x180/0x180 [ 73.802722][ T9733] ? smk_access+0x4f0/0x4f0 [ 73.807199][ T9733] ? smk_access+0x18c/0x4f0 [ 73.811686][ T9733] ? sock_poll+0x310/0x310 [ 73.816131][ T9733] do_vfs_ioctl+0x7d4/0x18f0 [ 73.820760][ T9733] ? ioctl_preallocate+0x240/0x240 [ 73.825878][ T9733] ? debug_smp_processor_id+0x1c/0x20 [ 73.831277][ T9733] ? fpregs_assert_state_consistent+0xb7/0xe0 [ 73.837333][ T9733] ? tomoyo_file_ioctl+0x23/0x30 [ 73.842296][ T9733] ? security_file_ioctl+0xa1/0xd0 [ 73.847678][ T9733] __x64_sys_ioctl+0xe3/0x120 [ 73.852421][ T9733] do_syscall_64+0xfe/0x140 [ 73.856973][ T9733] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 73.862849][ T9733] RIP: 0033:0x441229 [ 73.866771][ T9733] 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 [ 73.886364][ T9733] RSP: 002b:00007fffd0ad9048 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 73.895020][ T9733] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441229 [ 73.902978][ T9733] RDX: 0000000020000100 RSI: 00000000400452c8 RDI: 0000000000000004 [ 73.910977][ T9733] RBP: 0000000000011ef9 R08: 00000000004002c8 R09: 00000000004002c8 [ 73.918954][ T9733] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402050 [ 73.926911][ T9733] R13: 00000000004020e0 R14: 0000000000000000 R15: 0000000000000000 [ 73.935818][ T9733] Kernel Offset: disabled [ 73.940137][ T9733] Rebooting in 86400 seconds..