wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready Bluetooth: hci17: command 0x0419 tx timeout INFO: task kworker/1:2:4388 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. kworker/1:2 D26208 4388 2 0x80000000 Workqueue: usb_hub_wq hub_event 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 usb_kill_urb.part.0+0x197/0x220 drivers/usb/core/urb.c:697 usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:692 usb_start_wait_urb+0x252/0x4c0 drivers/usb/core/message.c:63 usb_internal_control_msg drivers/usb/core/message.c:101 [inline] usb_control_msg+0x31c/0x4a0 drivers/usb/core/message.c:152 hub_port_init+0x12dc/0x3120 drivers/usb/core/hub.c:4704 hub_port_connect drivers/usb/core/hub.c:5070 [inline] hub_port_connect_change drivers/usb/core/hub.c:5253 [inline] port_event drivers/usb/core/hub.c:5361 [inline] hub_event+0x1ccd/0x44a0 drivers/usb/core/hub.c:5441 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 INFO: task syz-executor.1:5850 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.1 D28320 5850 8130 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: 0033:0x7f24c422e40b Code: Bad RIP value. RSP: 002b:00007ffe9a9eab50 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f24c422e40b RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003 RBP: 00007f24c439e980 R08: 0000000000000000 R09: 00000123010c8195 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000114b09 R13: 00007ffe9a9eac50 R14: 00007f24c439d1f0 R15: 0000000000000032 INFO: task syz-executor.0:5851 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 5851 8107 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: 0033:0x7f2ef690240b Code: Bad RIP value. RSP: 002b:00007ffcb55940b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00007f2ef690240b RDX: 00007f2ef64c7ed8 RSI: ffffffffffffffff RDI: 0000000000000005 RBP: 00007f2ef6a72980 R08: 0000000000000000 R09: 00007f2ef64c5000 R10: 00007f2ef64c7ee0 R11: 0000000000000293 R12: 000000000011487f R13: 00007ffcb55941b0 R14: 00007f2ef6a70f80 R15: 0000000000000032 INFO: task syz-executor.3:5888 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.3 D28416 5888 8140 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_do_ioctl+0x193/0x3030 drivers/usb/core/devio.c:2393 usbdev_ioctl+0x21/0x30 drivers/usb/core/devio.c:2585 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f3f09d93639 Code: Bad RIP value. RSP: 002b:00007f3f08306168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f3f09eb3f80 RCX: 00007f3f09d93639 RDX: 0000000020000040 RSI: 0000000080045505 RDI: 0000000000000005 RBP: 00007f3f09dee7e1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff5e27469f R14: 00007f3f08306300 R15: 0000000000022000 INFO: task syz-executor.3:5896 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.3 D28168 5896 8140 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_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 chrdev_open+0x266/0x770 fs/char_dev.c:423 do_dentry_open+0x4aa/0x1160 fs/open.c:796 do_last fs/namei.c:3421 [inline] path_openat+0x793/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_sys_open+0x3b3/0x520 fs/open.c:1085 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f3f09d456e4 Code: Bad RIP value. RSP: 002b:00007f3f082e4ca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007f3f09d456e4 RDX: 0000000000000001 RSI: 00007f3f082e4d40 RDI: 00000000ffffff9c RBP: 00007f3f082e4d40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 R13: 00007fff5e27469f R14: 00007f3f082e5300 R15: 0000000000022000 INFO: task syz-executor.4:5886 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 D28368 5886 8122 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_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 chrdev_open+0x266/0x770 fs/char_dev.c:423 do_dentry_open+0x4aa/0x1160 fs/open.c:796 do_last fs/namei.c:3421 [inline] path_openat+0x793/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_sys_open+0x3b3/0x520 fs/open.c:1085 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fbc7c4006e4 Code: Bad RIP value. RSP: 002b:00007fbc7a9c0ca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007fbc7c4006e4 RDX: 0000000000000001 RSI: 00007fbc7a9c0d40 RDI: 00000000ffffff9c RBP: 00007fbc7a9c0d40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 R13: 00007ffcea3b30af R14: 00007fbc7a9c1300 R15: 0000000000022000 INFO: task syz-executor.4:5897 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 D28168 5897 8122 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_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 chrdev_open+0x266/0x770 fs/char_dev.c:423 do_dentry_open+0x4aa/0x1160 fs/open.c:796 do_last fs/namei.c:3421 [inline] path_openat+0x793/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_sys_open+0x3b3/0x520 fs/open.c:1085 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fbc7c4006e4 Code: Bad RIP value. RSP: 002b:00007fbc7a99fca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007fbc7c4006e4 RDX: 0000000000000001 RSI: 00007fbc7a99fd40 RDI: 00000000ffffff9c RBP: 00007fbc7a99fd40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 R13: 00007ffcea3b30af R14: 00007fbc7a9a0300 R15: 0000000000022000 INFO: task syz-executor.2:5895 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.2 D27384 5895 8127 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_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 chrdev_open+0x266/0x770 fs/char_dev.c:423 do_dentry_open+0x4aa/0x1160 fs/open.c:796 do_last fs/namei.c:3421 [inline] path_openat+0x793/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_sys_open+0x3b3/0x520 fs/open.c:1085 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fb16dfda6e4 Code: Bad RIP value. RSP: 002b:00007fb16c59aca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007fb16dfda6e4 RDX: 0000000000000001 RSI: 00007fb16c59ad40 RDI: 00000000ffffff9c RBP: 00007fb16c59ad40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 R13: 00007ffddd936c2f R14: 00007fb16c59b300 R15: 0000000000022000 INFO: task syz-executor.2:5903 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.2 D28168 5903 8127 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_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 chrdev_open+0x266/0x770 fs/char_dev.c:423 do_dentry_open+0x4aa/0x1160 fs/open.c:796 do_last fs/namei.c:3421 [inline] path_openat+0x793/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_sys_open+0x3b3/0x520 fs/open.c:1085 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fb16dfda6e4 Code: Bad RIP value. RSP: 002b:00007fb16c579ca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007fb16dfda6e4 RDX: 0000000000000001 RSI: 00007fb16c579d40 RDI: 00000000ffffff9c RBP: 00007fb16c579d40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 R13: 00007ffddd936c2f R14: 00007fb16c57a300 R15: 0000000000022000 INFO: task syz-executor.5:5892 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.5 D28208 5892 11381 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_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 chrdev_open+0x266/0x770 fs/char_dev.c:423 do_dentry_open+0x4aa/0x1160 fs/open.c:796 do_last fs/namei.c:3421 [inline] path_openat+0x793/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_sys_open+0x3b3/0x520 fs/open.c:1085 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f1b12ab86e4 Code: Bad RIP value. RSP: 002b:00007f1b11057ca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007f1b12ab86e4 RDX: 0000000000000001 RSI: 00007f1b11057d40 RDI: 00000000ffffff9c RBP: 00007f1b11057d40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 R13: 00007ffe201f38af R14: 00007f1b11058300 R15: 0000000000022000 Showing all locks held in the system: 3 locks held by kworker/u4:0/7: 1 lock held by khungtaskd/1571: #0: 000000002d162a99 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 5 locks held by kworker/1:2/4388: #0: 00000000dbe8602a ((wq_completion)"usb_hub_wq"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 00000000251ac546 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #2: 000000001a2004d0 (&dev->mutex){....}, at: hub_event+0x11e/0x44a0 drivers/usb/core/hub.c:5387 #3: 00000000c76c908f (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2983 [inline] #3: 00000000c76c908f (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5069 [inline] #3: 00000000c76c908f (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5253 [inline] #3: 00000000c76c908f (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5361 [inline] #3: 00000000c76c908f (&port_dev->status_lock){+.+.}, at: hub_event+0x1cb8/0x44a0 drivers/usb/core/hub.c:5441 #4: 00000000a653adf7 (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1b9/0x3120 drivers/usb/core/hub.c:4578 1 lock held by in:imklog/7852: #0: 0000000023f686a8 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 1 lock held by syz-executor.4/13475: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.4/13506: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.4/13566: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.3/15292: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.3/15471: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.0/26548: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.4/28207: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.4/28280: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.4/1161: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.4/1209: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.1/5850: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.0/5851: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.3/5888: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_do_ioctl+0x193/0x3030 drivers/usb/core/devio.c:2393 1 lock held by syz-executor.3/5896: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.4/5886: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.4/5897: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.2/5895: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.2/5903: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.5/5892: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.5/5901: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.1/7341: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.1/7342: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.4/7465: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.4/7472: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.5/7491: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.5/7504: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.2/7542: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.2/7548: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.3/7567: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.3/7572: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.0/7570: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.0/7571: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.4/8609: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.4/8639: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.5/9026: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.5/9040: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.0/9075: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.0/9086: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.0/9102: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.3/9093: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.3/9126: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.2/9103: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.2/9147: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.1/9217: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.1/9220: #0: 000000001a2004d0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 000000001a2004d0 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1571 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 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 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: bat_events batadv_nc_worker RIP: 0010:__lock_acquire+0x495/0x3ff0 kernel/locking/lockdep.c:3361 Code: 83 e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 ec 26 00 00 41 83 bd 74 08 00 00 01 49 8d 7a 24 48 89 fa 83 d8 ff c1 e3 0f c1 e0 0d e5 10 0f b7 db 09 d8 81 e5 00 00 03 00 41 c1 e4 13 09 c5 44 89 RSP: 0018:ffff8880b5a47a68 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff8880b5a36abc RSI: 1ffff11016b46d52 RDI: ffff8880b5a36abc RBP: 0000000000000002 R08: 000000000000002e R09: 0000000000000002 R10: ffff8880b5a36a98 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8880b5a361c0 R14: ffff8880b5a36ab0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3700029de0 CR3: 00000000a4769000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 rcu_lock_acquire include/linux/rcupdate.h:242 [inline] rcu_read_lock include/linux/rcupdate.h:627 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:419 [inline] batadv_nc_worker+0x12d/0xd50 net/batman-adv/network-coding.c:730 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