program:
sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$IPSET_CMD_ADD(0xffffffffffffffff, 0x0, 0x24004840)
syz_usb_connect(0x0, 0x24, &(0x7f0000000200)=ANY=[@ANYBLOB="120100002ec6601037210100352a010203010902120001000000000904"], 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f00000002c0), 0x42801, 0x0) (fail_nth: 9)
[ 104.005240][ T5302] Bluetooth: hci0: command tx timeout
[ 104.339859][ T53] usb 5-1: new high-speed USB device number 2 using dummy_hcd
[ 104.488554][ T53] usb 5-1: Using ep0 maxpacket: 16
[ 104.497316][ T53] usb 5-1: New USB device found, idVendor=2137, idProduct=0001, bcdDevice=2a.35
[ 104.501774][ T53] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 104.505117][ T53] usb 5-1: Product: syz
[ 104.506831][ T53] usb 5-1: Manufacturer: syz
[ 104.518202][ T53] usb 5-1: SerialNumber: syz
[ 104.534427][ T53] usb 5-1: config 0 descriptor??
[ 104.562448][ T53] as10x_usb: device has been detected
[ 104.569740][ T53] dvbdev: DVB: registering new adapter (Sky IT Digital Key (green led))
[ 104.591528][ T53] usb 5-1: DVB: registering adapter 1 frontend 0 (Sky IT Digital Key (green led))...
[ 104.616705][ T53] as10x_usb: error during firmware upload part1
[ 104.620519][ T53] Registered device Sky IT Digital Key (green led)
[ 104.744716][ T5324] random: crng reseeded on system resumption
[ 104.754604][ T5324] FAULT_INJECTION: forcing a failure.
[ 104.754604][ T5324] name failslab, interval 1, probability 0, space 0, times 1
[ 104.760971][ T5324] CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 104.760989][ T5324] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 104.760996][ T5324] Call Trace:
[ 104.761001][ T5324]
[ 104.761006][ T5324] dump_stack_lvl+0xe8/0x150
[ 104.761123][ T5324] should_fail_ex+0x412/0x560
[ 104.761172][ T5324] should_failslab+0xa8/0x100
[ 104.761188][ T5324] __kmalloc_cache_noprof+0x88/0x660
[ 104.761201][ T5324] ? async_schedule_node_domain+0x5b/0x120
[ 104.761218][ T5324] ? __pfx___async_dev_cache_fw_image+0x10/0x10
[ 104.761232][ T5324] async_schedule_node_domain+0x5b/0x120
[ 104.761249][ T5324] dev_cache_fw_image+0x36c/0x3f0
[ 104.761260][ T5324] ? __pfx_dev_cache_fw_image+0x10/0x10
[ 104.761267][ T5324] ? lockdep_hardirqs_on+0x7a/0x110
[ 104.761306][ T5324] ? enable_work+0x1fd/0x230
[ 104.761317][ T5324] ? __pfx_dev_cache_fw_image+0x10/0x10
[ 104.761329][ T5324] dpm_for_each_dev+0x56/0xb0
[ 104.761342][ T5324] fw_pm_notify+0x20c/0x2d0
[ 104.761352][ T5324] ? __pfx_fw_pm_notify+0x10/0x10
[ 104.761362][ T5324] ? __pfx_autoremove_wake_function+0x10/0x10
[ 104.761385][ T5324] notifier_call_chain+0x1be/0x400
[ 104.761409][ T5324] blocking_notifier_call_chain_robust+0x85/0x100
[ 104.761425][ T5324] pm_notifier_call_chain_robust+0x2c/0x60
[ 104.761441][ T5324] snapshot_open+0x133/0x280
[ 104.761457][ T5324] ? __pfx_snapshot_open+0x10/0x10
[ 104.761471][ T5324] misc_open+0x2d5/0x350
[ 104.761489][ T5324] chrdev_open+0x4cd/0x5e0
[ 104.761504][ T5324] ? __pfx_chrdev_open+0x10/0x10
[ 104.761515][ T5324] ? fsnotify_open_perm_and_set_mode+0x135/0x6d0
[ 104.761542][ T5324] ? __pfx_chrdev_open+0x10/0x10
[ 104.761553][ T5324] do_dentry_open+0x785/0x14e0
[ 104.761569][ T5324] vfs_open+0x3b/0x340
[ 104.761580][ T5324] ? path_openat+0x2df0/0x3860
[ 104.761592][ T5324] path_openat+0x2e08/0x3860
[ 104.761612][ T5324] ? __pfx_stack_trace_save+0x10/0x10
[ 104.761627][ T5324] ? stack_depot_save_flags+0x33/0x810
[ 104.761649][ T5324] ? __pfx_path_openat+0x10/0x10
[ 104.761658][ T5324] ? __x64_sys_openat+0x138/0x170
[ 104.761671][ T5324] ? do_syscall_64+0x14d/0xf80
[ 104.761684][ T5324] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 104.761701][ T5324] ? __lock_acquire+0x6b5/0x2cf0
[ 104.761720][ T5324] do_file_open+0x23e/0x4a0
[ 104.761734][ T5324] ? __pfx_do_file_open+0x10/0x10
[ 104.761757][ T5324] ? _raw_spin_unlock+0x28/0x50
[ 104.761768][ T5324] ? alloc_fd+0x64b/0x6c0
[ 104.761791][ T5324] do_sys_openat2+0x113/0x200
[ 104.761808][ T5324] ? __pfx_do_sys_openat2+0x10/0x10
[ 104.761823][ T5324] ? ksys_write+0x242/0x270
[ 104.761833][ T5324] ? __pfx_ksys_write+0x10/0x10
[ 104.761846][ T5324] __x64_sys_openat+0x138/0x170
[ 104.761862][ T5324] do_syscall_64+0x14d/0xf80
[ 104.761872][ T5324] ? trace_irq_disable+0x3b/0x150
[ 104.761881][ T5324] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 104.761891][ T5324] ? clear_bhb_loop+0x40/0x90
[ 104.761906][ T5324] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 104.761917][ T5324] RIP: 0033:0x7f591439c819
[ 104.761930][ T5324] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 104.761939][ T5324] RSP: 002b:00007f59151e8fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[ 104.761952][ T5324] RAX: ffffffffffffffda RBX: 00007f5914615fa0 RCX: 00007f591439c819
[ 104.761957][ T5324] RDX: 0000000000042801 RSI: 00002000000002c0 RDI: ffffffffffffff9c
[ 104.761962][ T5324] RBP: 00007f59151e9050 R08: 0000000000000000 R09: 0000000000000000
[ 104.761966][ T5324] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 104.761970][ T5324] R13: 00007f5914616038 R14: 00007f5914615fa0 R15: 00007ffd2ec05bf8
[ 104.761982][ T5324]
[ 104.947029][ T5324]
[ 104.948168][ T5324] ============================================
[ 104.951106][ T5324] WARNING: possible recursive locking detected
[ 104.953538][ T5324] syzkaller #0 Not tainted
[ 104.955411][ T5324] --------------------------------------------
[ 104.958166][ T5324] syz.0.0/5324 is trying to acquire lock:
[ 104.960784][ T5324] ffffffff8f1961c8 (fw_lock){+.+.}-{4:4}, at: assign_fw+0x52/0x8d0
[ 104.964385][ T5324]
[ 104.964385][ T5324] but task is already holding lock:
[ 104.967409][ T5324] ffffffff8f1961c8 (fw_lock){+.+.}-{4:4}, at: fw_pm_notify+0x1f4/0x2d0
[ 104.972305][ T5324]
[ 104.972305][ T5324] other info that might help us debug this:
[ 104.976711][ T5324] Possible unsafe locking scenario:
[ 104.976711][ T5324]
[ 104.979926][ T5324] CPU0
[ 104.981472][ T5324] ----
[ 104.982981][ T5324] lock(fw_lock);
[ 104.984661][ T5324] lock(fw_lock);
[ 104.986293][ T5324]
[ 104.986293][ T5324] *** DEADLOCK ***
[ 104.986293][ T5324]
[ 104.989991][ T5324] May be due to missing lock nesting notation
[ 104.989991][ T5324]
[ 104.994547][ T5324] 5 locks held by syz.0.0/5324:
[ 104.996863][ T5324] #0: ffffffff8f01c4e8 (misc_mtx){+.+.}-{4:4}, at: misc_open+0x51/0x350
[ 105.000595][ T5324] #1: ffffffff8e607ee8 (system_transition_mutex){+.+.}-{4:4}, at: lock_system_sleep+0x49/0x70
[ 105.005058][ T5324] #2: ffffffff8e62f550 ((pm_chain_head).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain_robust+0x65/0x100
[ 105.011606][ T5324] #3: ffffffff8f1961c8 (fw_lock){+.+.}-{4:4}, at: fw_pm_notify+0x1f4/0x2d0
[ 105.015622][ T5324] #4: ffffffff8f191048 (dpm_list_mtx){+.+.}-{4:4}, at: dpm_for_each_dev+0x29/0xb0
[ 105.019648][ T5324]
[ 105.019648][ T5324] stack backtrace:
[ 105.022297][ T5324] CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 105.022311][ T5324] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 105.022317][ T5324] Call Trace:
[ 105.022324][ T5324]
[ 105.022330][ T5324] dump_stack_lvl+0xe8/0x150
[ 105.022349][ T5324] print_deadlock_bug+0x279/0x290
[ 105.022367][ T5324] __lock_acquire+0x253f/0x2cf0
[ 105.022382][ T5324] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 105.022394][ T5324] ? lockdep_hardirqs_on+0x7a/0x110
[ 105.022406][ T5324] ? _raw_spin_unlock_irqrestore+0x4c/0x80
[ 105.022415][ T5324] ? stack_depot_save_flags+0x3f3/0x810
[ 105.022431][ T5324] lock_acquire+0xf0/0x2e0
[ 105.022441][ T5324] ? assign_fw+0x52/0x8d0
[ 105.022456][ T5324] __mutex_lock+0x19f/0x1300
[ 105.022469][ T5324] ? assign_fw+0x52/0x8d0
[ 105.022481][ T5324] ? path_openat+0x2e08/0x3860
[ 105.022491][ T5324] ? do_sys_openat2+0x113/0x200
[ 105.022503][ T5324] ? __x64_sys_openat+0x138/0x170
[ 105.022517][ T5324] ? do_syscall_64+0x14d/0xf80
[ 105.022530][ T5324] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 105.022543][ T5324] ? assign_fw+0x52/0x8d0
[ 105.022558][ T5324] ? __pfx___mutex_lock+0x10/0x10
[ 105.022583][ T5324] ? kasan_quarantine_put+0xbb/0x1f0
[ 105.022600][ T5324] ? lockdep_hardirqs_on+0x7a/0x110
[ 105.022612][ T5324] assign_fw+0x52/0x8d0
[ 105.022627][ T5324] ? kfree+0x1c1/0x630
[ 105.022642][ T5324] ? _request_firmware+0xf11/0x1780
[ 105.022657][ T5324] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 105.022669][ T5324] _request_firmware+0xfb6/0x1780
[ 105.022690][ T5324] ? __pfx__request_firmware+0x10/0x10
[ 105.022706][ T5324] ? do_raw_spin_lock+0x12b/0x2f0
[ 105.022720][ T5324] __async_dev_cache_fw_image+0x7f/0x2d0
[ 105.022732][ T5324] ? __pfx___async_dev_cache_fw_image+0x10/0x10
[ 105.022742][ T5324] async_schedule_node_domain+0xe1/0x120
[ 105.022759][ T5324] dev_cache_fw_image+0x36c/0x3f0
[ 105.022773][ T5324] ? __pfx_dev_cache_fw_image+0x10/0x10
[ 105.022784][ T5324] ? lockdep_hardirqs_on+0x7a/0x110
[ 105.022795][ T5324] ? enable_work+0x1fd/0x230
[ 105.022804][ T5324] ? __pfx_dev_cache_fw_image+0x10/0x10
[ 105.022813][ T5324] dpm_for_each_dev+0x56/0xb0
[ 105.022823][ T5324] fw_pm_notify+0x20c/0x2d0
[ 105.022831][ T5324] ? __pfx_fw_pm_notify+0x10/0x10
[ 105.022840][ T5324] ? __pfx_autoremove_wake_function+0x10/0x10
[ 105.022853][ T5324] notifier_call_chain+0x1be/0x400
[ 105.022871][ T5324] blocking_notifier_call_chain_robust+0x85/0x100
[ 105.022882][ T5324] pm_notifier_call_chain_robust+0x2c/0x60
[ 105.022897][ T5324] snapshot_open+0x133/0x280
[ 105.022915][ T5324] ? __pfx_snapshot_open+0x10/0x10
[ 105.022931][ T5324] misc_open+0x2d5/0x350
[ 105.022949][ T5324] chrdev_open+0x4cd/0x5e0
[ 105.022965][ T5324] ? __pfx_chrdev_open+0x10/0x10
[ 105.022977][ T5324] ? fsnotify_open_perm_and_set_mode+0x135/0x6d0
[ 105.022997][ T5324] ? __pfx_chrdev_open+0x10/0x10
[ 105.023008][ T5324] do_dentry_open+0x785/0x14e0
[ 105.023026][ T5324] vfs_open+0x3b/0x340
[ 105.023039][ T5324] ? path_openat+0x2df0/0x3860
[ 105.023050][ T5324] path_openat+0x2e08/0x3860
[ 105.023065][ T5324] ? __pfx_stack_trace_save+0x10/0x10
[ 105.023079][ T5324] ? stack_depot_save_flags+0x33/0x810
[ 105.023099][ T5324] ? __pfx_path_openat+0x10/0x10
[ 105.023111][ T5324] ? __x64_sys_openat+0x138/0x170
[ 105.023126][ T5324] ? do_syscall_64+0x14d/0xf80
[ 105.023139][ T5324] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 105.023155][ T5324] ? __lock_acquire+0x6b5/0x2cf0
[ 105.023172][ T5324] do_file_open+0x23e/0x4a0
[ 105.023184][ T5324] ? __pfx_do_file_open+0x10/0x10
[ 105.023200][ T5324] ? _raw_spin_unlock+0x28/0x50
[ 105.023211][ T5324] ? alloc_fd+0x64b/0x6c0
[ 105.023229][ T5324] do_sys_openat2+0x113/0x200
[ 105.023245][ T5324] ? __pfx_do_sys_openat2+0x10/0x10
[ 105.023259][ T5324] ? ksys_write+0x242/0x270
[ 105.023270][ T5324] ? __pfx_ksys_write+0x10/0x10
[ 105.023283][ T5324] __x64_sys_openat+0x138/0x170
[ 105.023301][ T5324] do_syscall_64+0x14d/0xf80
[ 105.023316][ T5324] ? trace_irq_disable+0x3b/0x150
[ 105.023329][ T5324] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 105.023341][ T5324] ? clear_bhb_loop+0x40/0x90
[ 105.023354][ T5324] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 105.023366][ T5324] RIP: 0033:0x7f591439c819
[ 105.023380][ T5324] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 105.023391][ T5324] RSP: 002b:00007f59151e8fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[ 105.023406][ T5324] RAX: ffffffffffffffda RBX: 00007f5914615fa0 RCX: 00007f591439c819
[ 105.023414][ T5324] RDX: 0000000000042801 RSI: 00002000000002c0 RDI: ffffffffffffff9c
[ 105.023423][ T5324] RBP: 00007f59151e9050 R08: 0000000000000000 R09: 0000000000000000
[ 105.023430][ T5324] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 105.023438][ T5324] R13: 00007f5914616038 R14: 00007f5914615fa0 R15: 00007ffd2ec05bf8
[ 105.023450][ T5324]
[ 106.019291][ T5302] Bluetooth: hci0: command tx timeout
[ 108.099239][ T5302] Bluetooth: hci0: command tx timeout