Bluetooth: hci8: command 0x041b tx timeout Bluetooth: hci7: command 0x040f tx timeout Bluetooth: hci8: command 0x040f tx timeout Bluetooth: hci7: command 0x0419 tx timeout Bluetooth: hci8: command 0x0419 tx timeout INFO: task syz-executor.0:12569 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D28648 12569 20124 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 device_lock include/linux/device.h:1174 [inline] usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 __fput+0x2ce/0x890 fs/file_table.c:278 task_work_run+0x148/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f7857654e4b Code: Bad RIP value. RSP: 002b:00007fff33a0dcd0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f7857654e4b RDX: 0000000000000000 RSI: 0000001b2d7255a0 RDI: 0000000000000004 RBP: 00007f78577b6960 R08: 0000000000000000 R09: 00000000ee5a3a10 R10: 0000000000000000 R11: 0000000000000293 R12: 000000000024223d R13: 00007fff33a0ddd0 R14: 00007f78577b5030 R15: 0000000000000032 INFO: task syz-executor.4:12611 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D28752 12611 19288 0x80000002 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 device_lock include/linux/device.h:1174 [inline] usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 __fput+0x2ce/0x890 fs/file_table.c:278 task_work_run+0x148/0x1c0 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0xbf3/0x2be0 kernel/exit.c:870 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath+0x3f0/0x4a0 arch/x86/entry/common.c:271 ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:407 RIP: 0033:0x7f3f1cae2631 Code: Bad RIP value. RSP: 002b:00007f3f1b2462f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: 0000000000000000 RBX: 00007f3f1b246700 RCX: 00007f3f1cae2631 RDX: 00007f3f1b2469d0 RSI: 00007f3f1b2462f0 RDI: 00000000003d0f00 RBP: 00007ffcd44f56e0 R08: 00007f3f1b246700 R09: 00007f3f1b246700 R10: 00007f3f1b2469d0 R11: 0000000000000206 R12: 00007ffcd44f554e R13: 00007ffcd44f554f R14: 00007f3f1b246300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/1570: #0: 000000009f24b839 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7768: #0: 000000000f05bb8c (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 5 locks held by kworker/1:2/15811: #0: 000000000a4d69a7 ((wq_completion)"usb_hub_wq"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 00000000420d0c7f ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 0000000041040f67 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #2: 0000000041040f67 (&dev->mutex){....}, at: hub_event+0x11e/0x44a0 drivers/usb/core/hub.c:5387 #3: 00000000f088323d (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2983 [inline] #3: 00000000f088323d (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5069 [inline] #3: 00000000f088323d (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5253 [inline] #3: 00000000f088323d (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5361 [inline] #3: 00000000f088323d (&port_dev->status_lock){+.+.}, at: hub_event+0x1cb8/0x44a0 drivers/usb/core/hub.c:5441 #4: 0000000000d1f8dc (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1b9/0x3120 drivers/usb/core/hub.c:4578 1 lock held by syz-executor.0/12569: #0: 0000000041040f67 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000041040f67 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.4/12611: #0: 0000000041040f67 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000041040f67 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.4/13226: #0: 0000000041040f67 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000041040f67 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.4/13228: #0: 0000000041040f67 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000041040f67 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.0/13266: #0: 0000000041040f67 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000041040f67 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.0/13267: #0: 0000000041040f67 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000041040f67 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.0/13268: #0: 0000000041040f67 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000041040f67 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.0/13819: #0: 0000000041040f67 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000041040f67 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.0/13828: #0: 0000000041040f67 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000041040f67 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.0/13829: #0: 0000000041040f67 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000041040f67 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.4/13861: #0: 0000000041040f67 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000041040f67 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.4/13864: #0: 0000000041040f67 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000041040f67 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.4/13865: #0: 0000000041040f67 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000041040f67 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 14550 Comm: kworker/u4:8 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 Workqueue: phy48 ieee80211_iface_work RIP: 0010:rol32 include/linux/bitops.h:83 [inline] RIP: 0010:jhash2 include/linux/jhash.h:128 [inline] RIP: 0010:hash_stack lib/stackdepot.c:165 [inline] RIP: 0010:depot_save_stack+0xaa/0x410 lib/stackdepot.c:234 Code: 44 29 d0 41 89 c3 44 89 d0 41 01 da c1 c0 06 44 31 d8 29 c3 41 89 db 89 c3 44 01 d0 c1 c3 08 44 31 db 41 89 db 41 29 da 01 c3 <41> c1 c3 10 45 31 da 45 89 d3 44 29 d0 41 01 da 41 c1 cb 0d 44 31 RSP: 0018:ffff888059a7f170 EFLAGS: 00000a86 RAX: 0000000059fc7371 RBX: 00000000d19eaf7b RCX: ffff888059a7f1d0 RDX: ffff888059a7f200 RSI: 000000000000000a RDI: 000000000000000a RBP: 00000000e53ae29b R08: 0000000000488020 R09: 0000000000000008 R10: 000000005a0eb8fd R11: 0000000077a23c0a R12: ffff888059a7f1b8 R13: 0000000000000000 R14: ffff88813bff04c0 R15: 0000000000000060 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5595a05000 CR3: 00000000abd66000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: save_stack mm/kasan/kasan.c:454 [inline] set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0x139/0x160 mm/kasan/kasan.c:553 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc mm/slab.c:3397 [inline] __do_kmalloc mm/slab.c:3725 [inline] __kmalloc+0x144/0x3c0 mm/slab.c:3736 kmalloc include/linux/slab.h:520 [inline] kzalloc include/linux/slab.h:709 [inline] cfg80211_inform_bss_frame_data+0x200/0xeb0 net/wireless/scan.c:1255 ieee80211_bss_info_update+0x42d/0x1800 net/mac80211/scan.c:105 ieee80211_rx_bss_info net/mac80211/ibss.c:1125 [inline] ieee80211_rx_mgmt_probe_beacon+0xb4f/0x15c0 net/mac80211/ibss.c:1607 ieee80211_ibss_rx_queued_mgmt+0xe27/0x18b0 net/mac80211/ibss.c:1634 ieee80211_iface_work+0x5c4/0x8a0 net/mac80211/iface.c:1341 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415