usb 9-1: new high-speed USB device number 2 using vhci_hcd ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 INFO: task syz-executor.3:27242 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 D28336 27242 8144 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: 0033:0x7ff0e653667b Code: Bad RIP value. RSP: 002b:00007fff063ba780 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007ff0e653667b RDX: 00007ff0e668c310 RSI: 0000000000000081 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007ff0e668c310 R13: 00007fff063ba8a0 R14: 00007ff0e6686f60 R15: 00000000000c5d3f INFO: task syz-executor.0:27248 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 27248 8138 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: 0033:0x7f26efa6467b Code: Bad RIP value. RSP: 002b:00007ffef6165ef0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f26efa6467b RDX: 0000000000000000 RSI: ffffffff8167abaa RDI: 0000000000000004 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b30523dcc R10: 0000000000001a0c R11: 0000000000000293 R12: 00007f26efbb5b60 R13: 00007f26efbb5b60 R14: 00007f26efbb4f60 R15: 00000000000c5d65 INFO: task syz-executor.2:27267 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 D29424 27267 16562 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: 0033:0x7f72a00d1954 Code: Bad RIP value. RSP: 002b:00007f729d672cc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007f72a00d1954 RDX: 0000000000028101 RSI: 00007f729d672d60 RDI: 00000000ffffff9c RBP: 00007f729d672d60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000028101 R13: 00007fff50e289bf R14: 00007f729d673300 R15: 0000000000022000 INFO: task syz-executor.5:27266 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 D27960 27266 8148 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: 0033:0x7f09e8bf4954 Code: Bad RIP value. RSP: 002b:00007f09e61b6cc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007f09e8bf4954 RDX: 0000000000028101 RSI: 00007f09e61b6d60 RDI: 00000000ffffff9c RBP: 00007f09e61b6d60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000028101 R13: 00007ffeb5d5d3cf R14: 00007f09e61b7300 R15: 0000000000022000 INFO: task syz-executor.5:27272 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 D28864 27272 8148 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: 0033:0x7f09e8bf4954 Code: Bad RIP value. RSP: 002b:00007f09e6195cc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007f09e8bf4954 RDX: 0000000000028101 RSI: 00007f09e6195d60 RDI: 00000000ffffff9c RBP: 00007f09e6195d60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000028101 R13: 00007ffeb5d5d3cf R14: 00007f09e6196300 R15: 0000000000022000 INFO: task syz-executor.4:27273 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 D28688 27273 8146 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: 0033:0x7f0464a43954 Code: Bad RIP value. RSP: 002b:00007f0462005cc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007f0464a43954 RDX: 0000000000028101 RSI: 00007f0462005d60 RDI: 00000000ffffff9c RBP: 00007f0462005d60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000028101 R13: 00007ffcd102d3af R14: 00007f0462006300 R15: 0000000000022000 INFO: task syz-executor.4:27281 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 D29504 27281 8146 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: 0033:0x7f0464a43954 Code: Bad RIP value. RSP: 002b:00007f0461fa2cc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007f0464a43954 RDX: 0000000000028101 RSI: 00007f0461fa2d60 RDI: 00000000ffffff9c RBP: 00007f0461fa2d60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000028101 R13: 00007ffcd102d3af R14: 00007f0461fa3300 R15: 0000000000022000 INFO: task syz-executor.1:27275 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 D28864 27275 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: 0033:0x7f5de4879954 Code: Bad RIP value. RSP: 002b:00007f5de1e3bcc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007f5de4879954 RDX: 0000000000028101 RSI: 00007f5de1e3bd60 RDI: 00000000ffffff9c RBP: 00007f5de1e3bd60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000028101 R13: 00007fff38e2a4ff R14: 00007f5de1e3c300 R15: 0000000000022000 INFO: task syz-executor.1:27278 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 D28864 27278 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: 0033:0x7f5de4879954 Code: Bad RIP value. RSP: 002b:00007f5de1e1acc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007f5de4879954 RDX: 0000000000028101 RSI: 00007f5de1e1ad60 RDI: 00000000ffffff9c RBP: 00007f5de1e1ad60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000028101 R13: 00007fff38e2a4ff R14: 00007f5de1e1b300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/1571: #0: 00000000b74fefe0 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7810: #0: 000000004fbdc461 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 1 lock held by syz-executor.4/24530: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.4/24538: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 5 locks held by kworker/0:0/11143: #0: 00000000fca24336 ((wq_completion)"usb_hub_wq"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 0000000083198a68 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #2: 0000000038d22af9 (&dev->mutex){....}, at: hub_event+0x11e/0x44a0 drivers/usb/core/hub.c:5387 #3: 00000000b3fdb237 (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2983 [inline] #3: 00000000b3fdb237 (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5069 [inline] #3: 00000000b3fdb237 (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5253 [inline] #3: 00000000b3fdb237 (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5361 [inline] #3: 00000000b3fdb237 (&port_dev->status_lock){+.+.}, at: hub_event+0x1cb8/0x44a0 drivers/usb/core/hub.c:5441 #4: 000000006acef9b8 (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1b9/0x3120 drivers/usb/core/hub.c:4578 1 lock held by syz-executor.5/11959: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.0/12513: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.0/12534: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.3/13469: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.3/14115: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.3/14637: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.3/14643: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.1/15206: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.2/16254: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.2/16290: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.2/18944: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.2/18991: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.3/27242: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.0/27248: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 1 lock held by syz-executor.2/27267: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.5/27266: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.5/27272: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.4/27273: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.4/27281: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.1/27275: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 1 lock held by syz-executor.1/27278: #0: 0000000038d22af9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000038d22af9 (&dev->mutex){....}, at: usbdev_open+0x152/0x7f0 drivers/usb/core/devio.c:1007 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1571 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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: 4685 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:___bpf_prog_run+0x1cfe/0x4e80 kernel/bpf/core.c:1101 Code: e2 07 0f b6 04 18 38 d0 7f 08 84 c0 0f 85 86 1d 00 00 41 0f b6 46 01 83 e0 0f 48 8d 44 c5 00 48 89 c2 48 c1 ea 03 80 3c 1a 00 <0f> 85 53 1d 00 00 4c 89 38 49 83 c6 08 e9 30 e3 ff ff e8 bb 31 f6 RSP: 0018:ffff8880a107fa30 EFLAGS: 00000246 RAX: ffff8880a107fb10 RBX: dffffc0000000000 RCX: ffff8880a107fe70 RDX: 1ffff1101420ff62 RSI: ffffffff816c533d RDI: ffffc90001b1a059 RBP: ffff8880a107fb00 R08: 0000000000000000 R09: 000000007fff0000 R10: 0000000000000004 R11: 0000000000000000 R12: ffffffff886fb460 R13: ffffed101420ff62 R14: ffffc90001b1a058 R15: 00000000c000003e FS: 00007f0b982cb8c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0b95353020 CR3: 00000000a17a0000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: ---------------- Code disassembly (best guess): 0: e2 07 loop 0x9 2: 0f b6 04 18 movzbl (%rax,%rbx,1),%eax 6: 38 d0 cmp %dl,%al 8: 7f 08 jg 0x12 a: 84 c0 test %al,%al c: 0f 85 86 1d 00 00 jne 0x1d98 12: 41 0f b6 46 01 movzbl 0x1(%r14),%eax 17: 83 e0 0f and $0xf,%eax 1a: 48 8d 44 c5 00 lea 0x0(%rbp,%rax,8),%rax 1f: 48 89 c2 mov %rax,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx 26: 80 3c 1a 00 cmpb $0x0,(%rdx,%rbx,1) * 2a: 0f 85 53 1d 00 00 jne 0x1d83 <-- trapping instruction 30: 4c 89 38 mov %r15,(%rax) 33: 49 83 c6 08 add $0x8,%r14 37: e9 30 e3 ff ff jmpq 0xffffe36c 3c: e8 .byte 0xe8 3d: bb .byte 0xbb 3e: 31 f6 xor %esi,%esi