Warning: Permanently added '10.128.1.152' (ED25519) to the list of known hosts. [ 102.622179][ T115] cfg80211: failed to load regulatory.db [ 102.693968][ T5825] cgroup: Unknown subsys name 'net' [ 102.814522][ T5825] cgroup: Unknown subsys name 'cpuset' [ 102.824363][ T5825] cgroup: Unknown subsys name 'rlimit' [ 103.020017][ T5837] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 103.028809][ T5837] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 103.047912][ T51] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 103.068039][ T5844] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 103.071762][ T5846] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 103.077063][ T5844] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 103.086249][ T5846] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 103.091310][ T5844] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 103.098458][ T5846] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 103.112337][ T5846] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 103.112794][ T5844] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 103.120211][ T5846] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 103.127452][ T5844] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 103.141998][ T5844] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 103.143370][ T5847] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 103.150716][ T5844] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 103.158672][ T5150] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 103.164083][ T5844] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 103.170843][ T5847] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 103.186894][ T5150] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 103.572153][ T59] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.582647][ T36] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.593713][ T36] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 103.599692][ T59] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 103.637840][ T36] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.646676][ T36] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 103.692345][ T3480] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.711862][ T3480] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 103.726130][ T59] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.735905][ T59] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 103.782542][ T36] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.793044][ T36] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 103.866503][ T5833] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 103.883345][ T79] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.891407][ T79] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 103.902853][ T79] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 103.911536][ T79] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program executing program [ 104.011639][ T5854] [ 104.014312][ T5854] ====================================================== [ 104.021346][ T5854] WARNING: possible circular locking dependency detected [ 104.028385][ T5854] 6.15.0-syzkaller-07774-g90b83efa6701 #0 Not tainted [ 104.035186][ T5854] ------------------------------------------------------ [ 104.042214][ T5854] syz-executor398/5854 is trying to acquire lock: [ 104.048636][ T5854] ffffffff8e52d3a8 (pcpu_alloc_mutex){+.+.}-{4:4}, at: pcpu_alloc_noprof+0xb4a/0x1470 [ 104.058380][ T5854] [ 104.058380][ T5854] but task is already holding lock: [ 104.065760][ T5854] ffff88814333d8b0 (&q->q_usage_counter(io)#58){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 [ 104.077065][ T5854] [ 104.077065][ T5854] which lock already depends on the new lock. [ 104.077065][ T5854] [ 104.087477][ T5854] [ 104.087477][ T5854] the existing dependency chain (in reverse order) is: [ 104.096576][ T5854] [ 104.096576][ T5854] -> #2 (&q->q_usage_counter(io)#58){++++}-{0:0}: [ 104.105859][ T5854] blk_alloc_queue+0x619/0x760 [ 104.111199][ T5854] blk_mq_alloc_queue+0x175/0x290 [ 104.116788][ T5854] __blk_mq_alloc_disk+0x29/0x120 [ 104.122459][ T5854] nbd_dev_add+0x4a0/0xbc0 [ 104.127437][ T5854] nbd_init+0x181/0x320 [ 104.132152][ T5854] do_one_initcall+0x120/0x6e0 [ 104.137494][ T5854] kernel_init_freeable+0x5c2/0x900 [ 104.143247][ T5854] kernel_init+0x1c/0x2b0 [ 104.148124][ T5854] ret_from_fork+0x5d7/0x6f0 [ 104.153267][ T5854] ret_from_fork_asm+0x1a/0x30 [ 104.158573][ T5854] [ 104.158573][ T5854] -> #1 (fs_reclaim){+.+.}-{0:0}: [ 104.165859][ T5854] fs_reclaim_acquire+0x102/0x150 [ 104.171446][ T5854] prepare_alloc_pages+0x162/0x610 [ 104.177115][ T5854] __alloc_frozen_pages_noprof+0x18b/0x23f0 [ 104.183612][ T5854] __alloc_pages_noprof+0xb/0x1b0 [ 104.189189][ T5854] pcpu_populate_chunk+0x110/0xb00 [ 104.194849][ T5854] pcpu_alloc_noprof+0x86a/0x1470 [ 104.200421][ T5854] xt_percpu_counter_alloc+0x13e/0x1b0 [ 104.206451][ T5854] find_check_entry.constprop.0+0xbc/0x9b0 [ 104.212813][ T5854] translate_table+0xc98/0x1720 [ 104.218208][ T5854] ipt_register_table+0x102/0x430 [ 104.223779][ T5854] iptable_raw_table_init+0x63/0x90 [ 104.229538][ T5854] xt_find_table_lock+0x2e1/0x520 [ 104.235163][ T5854] xt_request_find_table_lock+0x28/0xf0 [ 104.241257][ T5854] get_info+0x190/0x610 [ 104.245979][ T5854] do_ipt_get_ctl+0x169/0xa10 [ 104.251198][ T5854] nf_getsockopt+0x7c/0xe0 [ 104.256180][ T5854] ip_getsockopt+0x18c/0x1e0 [ 104.261327][ T5854] tcp_getsockopt+0x9e/0x100 [ 104.266468][ T5854] do_sock_getsockopt+0x3ff/0x800 [ 104.272040][ T5854] __sys_getsockopt+0x123/0x1b0 [ 104.277439][ T5854] __x64_sys_getsockopt+0xbd/0x160 [ 104.283121][ T5854] do_syscall_64+0xcd/0x490 [ 104.288175][ T5854] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 104.294615][ T5854] [ 104.294615][ T5854] -> #0 (pcpu_alloc_mutex){+.+.}-{4:4}: [ 104.302382][ T5854] __lock_acquire+0x126f/0x1c90 [ 104.307780][ T5854] lock_acquire+0x179/0x350 [ 104.312827][ T5854] __mutex_lock+0x199/0xb90 [ 104.317881][ T5854] pcpu_alloc_noprof+0xb4a/0x1470 [ 104.323452][ T5854] blk_stat_alloc_callback+0xc8/0x280 [ 104.329369][ T5854] wbt_init+0xac/0x540 [ 104.333978][ T5854] queue_wb_lat_store+0x354/0x3d0 [ 104.339631][ T5854] queue_attr_store+0x276/0x320 [ 104.345017][ T5854] sysfs_kf_write+0xef/0x150 [ 104.350162][ T5854] kernfs_fop_write_iter+0x354/0x510 [ 104.356002][ T5854] vfs_write+0x6c7/0x1150 [ 104.360976][ T5854] ksys_write+0x12a/0x250 [ 104.365862][ T5854] do_syscall_64+0xcd/0x490 [ 104.370941][ T5854] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 104.377397][ T5854] [ 104.377397][ T5854] other info that might help us debug this: [ 104.377397][ T5854] [ 104.387769][ T5854] Chain exists of: [ 104.387769][ T5854] pcpu_alloc_mutex --> fs_reclaim --> &q->q_usage_counter(io)#58 [ 104.387769][ T5854] [ 104.401486][ T5854] Possible unsafe locking scenario: [ 104.401486][ T5854] [ 104.408954][ T5854] CPU0 CPU1 [ 104.414335][ T5854] ---- ---- [ 104.419798][ T5854] lock(&q->q_usage_counter(io)#58); [ 104.425209][ T5854] lock(fs_reclaim); [ 104.431733][ T5854] lock(&q->q_usage_counter(io)#58); [ 104.439743][ T5854] lock(pcpu_alloc_mutex); [ 104.444353][ T5854] [ 104.444353][ T5854] *** DEADLOCK *** [ 104.444353][ T5854] [ 104.452652][ T5854] 5 locks held by syz-executor398/5854: [ 104.458222][ T5854] #0: ffff8880316b8428 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 [ 104.467264][ T5854] #1: ffff88802a508088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 [ 104.477170][ T5854] #2: ffff888147e9ac38 (kn->active#57){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 [ 104.487255][ T5854] #3: ffff88814333d8b0 (&q->q_usage_counter(io)#58){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 [ 104.498982][ T5854] #4: ffff88814333d8e8 (&q->q_usage_counter(queue)#10){+.+.}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 [ 104.510969][ T5854] [ 104.510969][ T5854] stack backtrace: [ 104.516883][ T5854] CPU: 1 UID: 0 PID: 5854 Comm: syz-executor398 Not tainted 6.15.0-syzkaller-07774-g90b83efa6701 #0 PREEMPT(full) [ 104.516917][ T5854] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 104.516938][ T5854] Call Trace: [ 104.516949][ T5854] [ 104.516960][ T5854] dump_stack_lvl+0x116/0x1f0 [ 104.517002][ T5854] print_circular_bug+0x275/0x350 [ 104.517035][ T5854] check_noncircular+0x14c/0x170 [ 104.517068][ T5854] __lock_acquire+0x126f/0x1c90 [ 104.517103][ T5854] lock_acquire+0x179/0x350 [ 104.517132][ T5854] ? pcpu_alloc_noprof+0xb4a/0x1470 [ 104.517168][ T5854] ? __pfx___might_resched+0x10/0x10 [ 104.517192][ T5854] ? ksys_write+0x12a/0x250 [ 104.517222][ T5854] ? do_syscall_64+0xcd/0x490 [ 104.517257][ T5854] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 104.517286][ T5854] __mutex_lock+0x199/0xb90 [ 104.517321][ T5854] ? pcpu_alloc_noprof+0xb4a/0x1470 [ 104.517355][ T5854] ? pcpu_alloc_noprof+0xb4a/0x1470 [ 104.517388][ T5854] ? __pfx___mutex_lock+0x10/0x10 [ 104.517432][ T5854] ? pcpu_alloc_noprof+0xb4a/0x1470 [ 104.517463][ T5854] pcpu_alloc_noprof+0xb4a/0x1470 [ 104.517501][ T5854] ? __pfx_wbt_data_dir+0x10/0x10 [ 104.517542][ T5854] ? __pfx_wb_timer_fn+0x10/0x10 [ 104.517569][ T5854] blk_stat_alloc_callback+0xc8/0x280 [ 104.517603][ T5854] ? kasan_save_track+0x14/0x30 [ 104.517638][ T5854] wbt_init+0xac/0x540 [ 104.517668][ T5854] queue_wb_lat_store+0x354/0x3d0 [ 104.517694][ T5854] ? __pfx_queue_wb_lat_store+0x10/0x10 [ 104.517720][ T5854] ? __mutex_trylock_common+0xe9/0x250 [ 104.517753][ T5854] ? __pfx_queue_wb_lat_store+0x10/0x10 [ 104.517777][ T5854] queue_attr_store+0x276/0x320 [ 104.517802][ T5854] ? __pfx_queue_attr_store+0x10/0x10 [ 104.517825][ T5854] ? __lock_acquire+0x622/0x1c90 [ 104.517863][ T5854] ? find_held_lock+0x2b/0x80 [ 104.517901][ T5854] ? sysfs_file_kobj+0xe4/0x290 [ 104.517929][ T5854] ? __pfx_queue_attr_store+0x10/0x10 [ 104.517953][ T5854] sysfs_kf_write+0xef/0x150 [ 104.517979][ T5854] kernfs_fop_write_iter+0x354/0x510 [ 104.518020][ T5854] ? __pfx_sysfs_kf_write+0x10/0x10 [ 104.518047][ T5854] vfs_write+0x6c7/0x1150 [ 104.518077][ T5854] ? __pfx_kernfs_fop_write_iter+0x10/0x10 [ 104.518119][ T5854] ? css_rstat_updated+0x9d/0xd30 [ 104.518160][ T5854] ? __pfx_vfs_write+0x10/0x10 [ 104.518192][ T5854] ? count_memcg_events_mm.constprop.0+0x138/0x340 [ 104.518237][ T5854] ? find_held_lock+0x2b/0x80 [ 104.518277][ T5854] ksys_write+0x12a/0x250 [ 104.518307][ T5854] ? __pfx_ksys_write+0x10/0x10 [ 104.518341][ T5854] do_syscall_64+0xcd/0x490 [ 104.518377][ T5854] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 104.518403][ T5854] RIP: 0033:0x7f18df4b0e49 [ 104.518432][ T5854] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 1d 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 [ 104.518459][ T5854] RSP: 002b:00007ffc61925058 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 104.518482][ T5854] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f18df4b0e49 executing program executing program executing program [ 104.518499][ T5854] RDX: 0000000000000801 RSI: 0000200000000240 RDI: 0000000000000003 [ 104.518514][ T5854] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 104.518528][ T5854] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 104.518543][ T5854] R13: 00007ffc61925090 R14: 00007ffc619250d0 R15: 0000000000000000 [ 104.518567][ T5854] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 105.259440][ T5847] Bluetooth: hci3: command tx timeout [ 105.259452][ T5842] Bluetooth: hci2: command tx timeout [ 105.259497][ T5847] Bluetooth: hci1: command tx timeout [ 105.264895][ T5842] Bluetooth: hci0: command tx timeout executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 107.339487][ T5150] Bluetooth: hci2: command tx timeout [ 107.339506][ T5847] Bluetooth: hci3: command tx timeout [ 107.339544][ T5847] Bluetooth: hci0: command tx timeout [ 107.345058][ T5842] Bluetooth: hci1: command tx timeout executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 109.419577][ T5842] Bluetooth: hci0: command tx timeout [ 109.429424][ T5842] Bluetooth: hci1: command tx timeout [ 109.429469][ T5847] Bluetooth: hci2: command tx timeout [ 109.434867][ T5837] Bluetooth: hci3: command tx timeout executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 111.499649][ T5837] Bluetooth: hci0: command tx timeout [ 111.505349][ T5847] Bluetooth: hci1: command tx timeout [ 111.505361][ T5150] Bluetooth: hci2: command tx timeout [ 111.514382][ T5842] Bluetooth: hci3: command tx timeout executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program