program: r0 = syz_open_dev$tty1(0xc, 0x4, 0x1) ioctl$KDSETLED(r0, 0x4b32, 0x6) r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x2, 0x0) connect$bt_l2cap(r1, &(0x7f0000000080)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}, 0x7ff}, 0xe) r2 = syz_init_net_socket$bt_hidp(0x1f, 0x3, 0x6) syz_mount_image$f2fs(&(0x7f0000000140), &(0x7f00000000c0)='./bus\x00', 0x0, &(0x7f00000003c0)={[{@nodiscard}, {@alloc_mode_def}, {@acl}, {@alloc_mode_reuse}, {@block_mode}, {@disable_roll_forward}, {@background_gc_on}, {@nouser_xattr}, {@checkpoint_diasble}, {@user_xattr}, {@fsync_mode_strict}, {@nobarrier}, {@jqfmt_vfsold}, {@block_mode}]}, 0x1, 0x5505, &(0x7f0000002480)="$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r3 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./file0\x00', 0x183341, 0x0) ioctl$F2FS_IOC_COMPRESS_FILE(r3, 0xf518, 0x0) ioctl$KDSKBMETA(r0, 0x4b63, &(0x7f0000000040)=0x3) ioctl$sock_bt_hidp_HIDPCONNADD(r2, 0x400448c8, &(0x7f00000000c0)={r1, r1, 0x206, 0x0, 0x0, 0x2, 0x72, 0x1, 0x3, 0x7, 0x0, 0x8, 'syz1\x00'}) r4 = syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) socket$inet_icmp_raw(0x2, 0x3, 0x1) syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5) close(0x4) syz_open_procfs$namespace(0x0, &(0x7f0000000080)='ns/ipc\x00') mmap(&(0x7f0000001000/0xc00000)=nil, 0xc00000, 0x9, 0x3032, 0xffffffffffffffff, 0x0) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000000100)={0x0, 0x0, 0x0}, 0x0) r5 = socket$nl_route(0x10, 0x3, 0x0) socket$pppoe(0x18, 0x1, 0x0) sendmsg$nl_route(r5, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)=@newlink={0x30, 0x10, 0x1, 0x70bd25, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x2021}, [@IFLA_MTU={0x8, 0x4, 0x2000}, @IFLA_GROUP={0x8}]}, 0x30}, 0x1, 0x0, 0x0, 0x810}, 0x0) ioctl$HCIINQUIRY(r4, 0x400448ca, 0x0) [ 85.029024][ T5341] loop0: detected capacity change from 0 to 40427 [ 85.040430][ T47] Bluetooth: hci0: command tx timeout [ 85.071854][ T5341] F2FS-fs (loop0): invalid crc value [ 85.156401][ T5341] F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 1 [ 85.166992][ T5341] F2FS-fs (loop0): Start checkpoint disabled! [ 85.176006][ T5341] F2FS-fs (loop0): f2fs_disable_checkpoint() finish, err:0 [ 85.189362][ T5341] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e6 [ 85.228875][ T5341] input: Bluetooth HID Boot Protocol Device as /devices/virtual/bluetooth/hci0/hci0:200/input5 [ 85.590130][ T5341] [ 85.591167][ T5341] ====================================================== [ 85.593958][ T5341] WARNING: possible circular locking dependency detected [ 85.596814][ T5341] syzkaller #0 Not tainted [ 85.598880][ T5341] ------------------------------------------------------ [ 85.601861][ T5341] syz.0.0/5341 is trying to acquire lock: [ 85.604466][ T5341] ffff888011382840 ((work_completion)(&(&conn->info_timer)->work)){+.+.}-{0:0}, at: __flush_work+0xd2/0xbc0 [ 85.609435][ T5341] [ 85.609435][ T5341] but task is already holding lock: [ 85.612530][ T5341] ffff888011382b38 (&conn->lock#2){+.+.}-{4:4}, at: l2cap_conn_del+0x7b/0x5b0 [ 85.616478][ T5341] [ 85.616478][ T5341] which lock already depends on the new lock. [ 85.616478][ T5341] [ 85.620839][ T5341] [ 85.620839][ T5341] the existing dependency chain (in reverse order) is: [ 85.624732][ T5341] [ 85.624732][ T5341] -> #1 (&conn->lock#2){+.+.}-{4:4}: [ 85.627928][ T5341] __mutex_lock+0x187/0x1350 [ 85.630123][ T5341] l2cap_info_timeout+0x60/0xa0 [ 85.632759][ T5341] process_scheduled_works+0xad1/0x1770 [ 85.635814][ T5341] worker_thread+0x8a0/0xda0 [ 85.638201][ T5341] kthread+0x711/0x8a0 [ 85.640366][ T5341] ret_from_fork+0x510/0xa50 [ 85.642370][ T5341] ret_from_fork_asm+0x1a/0x30 [ 85.644606][ T5341] [ 85.644606][ T5341] -> #0 ((work_completion)(&(&conn->info_timer)->work)){+.+.}-{0:0}: [ 85.649173][ T5341] __lock_acquire+0x15a6/0x2cf0 [ 85.651625][ T5341] lock_acquire+0x107/0x340 [ 85.653946][ T5341] __flush_work+0x6b8/0xbc0 [ 85.656105][ T5341] __cancel_work_sync+0xbe/0x110 [ 85.658585][ T5341] l2cap_conn_del+0x402/0x5b0 [ 85.661023][ T5341] hci_conn_hash_flush+0x10d/0x260 [ 85.663626][ T5341] hci_dev_close_sync+0x821/0x1100 [ 85.666084][ T5341] hci_dev_close+0x108/0x270 [ 85.668216][ T5341] sock_do_ioctl+0xdc/0x300 [ 85.670552][ T5341] sock_ioctl+0x576/0x790 [ 85.672828][ T5341] __se_sys_ioctl+0xfc/0x170 [ 85.675193][ T5341] do_syscall_64+0xec/0xf80 [ 85.677418][ T5341] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.680227][ T5341] [ 85.680227][ T5341] other info that might help us debug this: [ 85.680227][ T5341] [ 85.685273][ T5341] Possible unsafe locking scenario: [ 85.685273][ T5341] [ 85.688827][ T5341] CPU0 CPU1 [ 85.691417][ T5341] ---- ---- [ 85.694106][ T5341] lock(&conn->lock#2); [ 85.696210][ T5341] lock((work_completion)(&(&conn->info_timer)->work)); [ 85.700779][ T5341] lock(&conn->lock#2); [ 85.704256][ T5341] lock((work_completion)(&(&conn->info_timer)->work)); [ 85.708010][ T5341] [ 85.708010][ T5341] *** DEADLOCK *** [ 85.708010][ T5341] [ 85.712194][ T5341] 5 locks held by syz.0.0/5341: [ 85.714894][ T5341] #0: ffff888040990ec0 (&hdev->req_lock){+.+.}-{4:4}, at: hci_dev_close+0x100/0x270 [ 85.719762][ T5341] #1: ffff8880409900c0 (&hdev->lock){+.+.}-{4:4}, at: hci_dev_close_sync+0x640/0x1100 [ 85.724276][ T5341] #2: ffffffff8f485c88 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_conn_hash_flush+0xa1/0x260 [ 85.728755][ T5341] #3: ffff888011382b38 (&conn->lock#2){+.+.}-{4:4}, at: l2cap_conn_del+0x7b/0x5b0 [ 85.732757][ T5341] #4: ffffffff8df41aa0 (rcu_read_lock){....}-{1:3}, at: __flush_work+0xd2/0xbc0 [ 85.736533][ T5341] [ 85.736533][ T5341] stack backtrace: [ 85.738968][ T5341] CPU: 0 UID: 0 PID: 5341 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 85.738985][ T5341] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 85.738992][ T5341] Call Trace: [ 85.739000][ T5341] [ 85.739007][ T5341] dump_stack_lvl+0xe8/0x150 [ 85.739025][ T5341] print_circular_bug+0x2e2/0x300 [ 85.739041][ T5341] check_noncircular+0x12e/0x150 [ 85.739057][ T5341] __lock_acquire+0x15a6/0x2cf0 [ 85.739068][ T5341] ? do_raw_spin_lock+0x121/0x290 [ 85.739085][ T5341] ? __flush_work+0xd2/0xbc0 [ 85.739096][ T5341] lock_acquire+0x107/0x340 [ 85.739105][ T5341] ? __flush_work+0xd2/0xbc0 [ 85.739117][ T5341] ? __flush_work+0xd2/0xbc0 [ 85.739128][ T5341] __flush_work+0x6b8/0xbc0 [ 85.739139][ T5341] ? __flush_work+0xd2/0xbc0 [ 85.739151][ T5341] ? __flush_work+0xd2/0xbc0 [ 85.739162][ T5341] ? __pfx___flush_work+0x10/0x10 [ 85.739172][ T5341] ? __pfx_wq_barrier_func+0x10/0x10 [ 85.739183][ T5341] ? __cancel_work_sync+0x5c/0x110 [ 85.739191][ T5341] __cancel_work_sync+0xbe/0x110 [ 85.739198][ T5341] l2cap_conn_del+0x402/0x5b0 [ 85.739208][ T5341] ? __pfx_l2cap_disconn_cfm+0x10/0x10 [ 85.739216][ T5341] hci_conn_hash_flush+0x10d/0x260 [ 85.739226][ T5341] hci_dev_close_sync+0x821/0x1100 [ 85.739234][ T5341] ? __pfx_hci_dev_close_sync+0x10/0x10 [ 85.739241][ T5341] ? lockdep_hardirqs_on+0x7b/0x110 [ 85.739248][ T5341] ? enable_work+0x1e9/0x220 [ 85.739257][ T5341] hci_dev_close+0x108/0x270 [ 85.739266][ T5341] sock_do_ioctl+0xdc/0x300 [ 85.739276][ T5341] ? __pfx_sock_do_ioctl+0x10/0x10 [ 85.739282][ T5341] ? do_futex+0x333/0x420 [ 85.739291][ T5341] sock_ioctl+0x576/0x790 [ 85.739298][ T5341] ? __pfx_sock_ioctl+0x10/0x10 [ 85.739305][ T5341] ? __fget_files+0x2a/0x420 [ 85.739314][ T5341] ? __fget_files+0x3a0/0x420 [ 85.739323][ T5341] ? __fget_files+0x2a/0x420 [ 85.739334][ T5341] ? bpf_lsm_file_ioctl+0x9/0x20 [ 85.739351][ T5341] ? __pfx_sock_ioctl+0x10/0x10 [ 85.739363][ T5341] __se_sys_ioctl+0xfc/0x170 [ 85.739378][ T5341] do_syscall_64+0xec/0xf80 [ 85.739388][ T5341] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.739397][ T5341] ? trace_irq_disable+0x37/0x100 [ 85.739420][ T5341] ? clear_bhb_loop+0x60/0xb0 [ 85.739432][ T5341] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.739444][ T5341] RIP: 0033:0x7f0a6c58f7c9 [ 85.739456][ T5341] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 85.739466][ T5341] RSP: 002b:00007f0a6d353038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 85.739478][ T5341] RAX: ffffffffffffffda RBX: 00007f0a6c7e5fa0 RCX: 00007f0a6c58f7c9 [ 85.739485][ T5341] RDX: 0000000000000000 RSI: 00000000400448ca RDI: 0000000000000009 [ 85.739492][ T5341] RBP: 00007f0a6c613f91 R08: 0000000000000000 R09: 0000000000000000 [ 85.739499][ T5341] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.739505][ T5341] R13: 00007f0a6c7e6038 R14: 00007f0a6c7e5fa0 R15: 00007ffcf7365f98 [ 85.739519][ T5341] [ 85.954727][ T5347] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.957882][ T5347] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.108738][ T47] Bluetooth: hci0: command tx timeout [ 89.188856][ T47] Bluetooth: hci0: command tx timeout [ 91.268678][ T47] Bluetooth: hci0: command tx timeout [ 91.751554][ T9] cfg80211: failed to load regulatory.db