INFO: task syz.3.20:5013 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.20 state:D stack:0 pid:5013 tgid:5013 ppid:4854 task_flags:0x400040 flags:0x00800001 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1bec/0x2dcc kernel/sched/core.c:7189 __schedule_loop kernel/sched/core.c:7268 [inline] schedule+0x140/0x218 kernel/sched/core.c:7283 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7340 __mutex_lock_common kernel/locking/mutex.c:726 [inline] __mutex_lock+0x4e4/0xef8 kernel/locking/mutex.c:820 mutex_lock_nested+0x24/0x30 kernel/locking/mutex.c:873 device_lock include/linux/device.h:1040 [inline] usbdev_release+0x70/0x380 drivers/usb/core/devio.c:1099 __fput+0x340/0x744 fs/file_table.c:510 ____fput+0x20/0x30 fs/file_table.c:538 task_work_run+0x1c4/0x254 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0x10c/0x17c kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] arm64_syscall_exit_to_user_mode arch/arm64/kernel/entry-common.c:88 [inline] el0_svc+0x18c/0x260 arch/arm64/kernel/entry-common.c:737 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 INFO: task syz.1.18:5018 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.18 state:D stack:0 pid:5018 tgid:5017 ppid:4855 task_flags:0x400040 flags:0x00800011 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1bec/0x2dcc kernel/sched/core.c:7189 __schedule_loop kernel/sched/core.c:7268 [inline] schedule+0x140/0x218 kernel/sched/core.c:7283 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7340 __mutex_lock_common kernel/locking/mutex.c:726 [inline] __mutex_lock+0x4e4/0xef8 kernel/locking/mutex.c:820 mutex_lock_nested+0x24/0x30 kernel/locking/mutex.c:873 device_lock include/linux/device.h:1040 [inline] usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 chrdev_open+0x398/0x3e8 fs/char_dev.c:411 do_dentry_open+0x5c4/0xfc8 fs/open.c:947 vfs_open+0x44/0x2d4 fs/open.c:1079 do_open fs/namei.c:4699 [inline] path_openat+0x2234/0x2a6c fs/namei.c:4858 do_file_open+0x1c4/0x2e4 fs/namei.c:4887 do_sys_openat2+0x114/0x1e8 fs/open.c:1364 do_sys_open+0xac/0xdc fs/open.c:1370 __do_sys_openat fs/open.c:1386 [inline] __se_sys_openat fs/open.c:1381 [inline] __arm64_sys_openat+0x9c/0xb8 fs/open.c:1381 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 INFO: task syz.4.21:5022 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.4.21 state:D stack:0 pid:5022 tgid:5021 ppid:4868 task_flags:0x400040 flags:0x00800001 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1bec/0x2dcc kernel/sched/core.c:7189 __schedule_loop kernel/sched/core.c:7268 [inline] schedule+0x140/0x218 kernel/sched/core.c:7283 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7340 __mutex_lock_common kernel/locking/mutex.c:726 [inline] __mutex_lock+0x4e4/0xef8 kernel/locking/mutex.c:820 mutex_lock_nested+0x24/0x30 kernel/locking/mutex.c:873 device_lock include/linux/device.h:1040 [inline] usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 chrdev_open+0x398/0x3e8 fs/char_dev.c:411 do_dentry_open+0x5c4/0xfc8 fs/open.c:947 vfs_open+0x44/0x2d4 fs/open.c:1079 do_open fs/namei.c:4699 [inline] path_openat+0x2234/0x2a6c fs/namei.c:4858 do_file_open+0x1c4/0x2e4 fs/namei.c:4887 do_sys_openat2+0x114/0x1e8 fs/open.c:1364 do_sys_open+0xac/0xdc fs/open.c:1370 __do_sys_openat fs/open.c:1386 [inline] __se_sys_openat fs/open.c:1381 [inline] __arm64_sys_openat+0x9c/0xb8 fs/open.c:1381 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 INFO: task syz.0.22:5027 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.22 state:D stack:0 pid:5027 tgid:5026 ppid:4847 task_flags:0x400040 flags:0x00800001 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1bec/0x2dcc kernel/sched/core.c:7189 __schedule_loop kernel/sched/core.c:7268 [inline] schedule+0x140/0x218 kernel/sched/core.c:7283 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7340 __mutex_lock_common kernel/locking/mutex.c:726 [inline] __mutex_lock+0x4e4/0xef8 kernel/locking/mutex.c:820 mutex_lock_nested+0x24/0x30 kernel/locking/mutex.c:873 device_lock include/linux/device.h:1040 [inline] usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 chrdev_open+0x398/0x3e8 fs/char_dev.c:411 do_dentry_open+0x5c4/0xfc8 fs/open.c:947 vfs_open+0x44/0x2d4 fs/open.c:1079 do_open fs/namei.c:4699 [inline] path_openat+0x2234/0x2a6c fs/namei.c:4858 do_file_open+0x1c4/0x2e4 fs/namei.c:4887 do_sys_openat2+0x114/0x1e8 fs/open.c:1364 do_sys_open+0xac/0xdc fs/open.c:1370 __do_sys_openat fs/open.c:1386 [inline] __se_sys_openat fs/open.c:1381 [inline] __arm64_sys_openat+0x9c/0xb8 fs/open.c:1381 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 INFO: task syz.2.19:5106 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.19 state:D stack:0 pid:5106 tgid:5105 ppid:4852 task_flags:0x400040 flags:0x00800001 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1bec/0x2dcc kernel/sched/core.c:7189 __schedule_loop kernel/sched/core.c:7268 [inline] schedule+0x140/0x218 kernel/sched/core.c:7283 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7340 __mutex_lock_common kernel/locking/mutex.c:726 [inline] __mutex_lock+0x4e4/0xef8 kernel/locking/mutex.c:820 mutex_lock_nested+0x24/0x30 kernel/locking/mutex.c:873 device_lock include/linux/device.h:1040 [inline] usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 chrdev_open+0x398/0x3e8 fs/char_dev.c:411 do_dentry_open+0x5c4/0xfc8 fs/open.c:947 vfs_open+0x44/0x2d4 fs/open.c:1079 do_open fs/namei.c:4699 [inline] path_openat+0x2234/0x2a6c fs/namei.c:4858 do_file_open+0x1c4/0x2e4 fs/namei.c:4887 do_sys_openat2+0x114/0x1e8 fs/open.c:1364 do_sys_open+0xac/0xdc fs/open.c:1370 __do_sys_openat fs/open.c:1386 [inline] __se_sys_openat fs/open.c:1381 [inline] __arm64_sys_openat+0x9c/0xb8 fs/open.c:1381 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 INFO: task syz.5.23:5268 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.5.23 state:D stack:0 pid:5268 tgid:5267 ppid:5111 task_flags:0x400040 flags:0x00800001 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1bec/0x2dcc kernel/sched/core.c:7189 __schedule_loop kernel/sched/core.c:7268 [inline] schedule+0x140/0x218 kernel/sched/core.c:7283 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7340 __mutex_lock_common kernel/locking/mutex.c:726 [inline] __mutex_lock+0x4e4/0xef8 kernel/locking/mutex.c:820 mutex_lock_nested+0x24/0x30 kernel/locking/mutex.c:873 device_lock include/linux/device.h:1040 [inline] usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 chrdev_open+0x398/0x3e8 fs/char_dev.c:411 do_dentry_open+0x5c4/0xfc8 fs/open.c:947 vfs_open+0x44/0x2d4 fs/open.c:1079 do_open fs/namei.c:4699 [inline] path_openat+0x2234/0x2a6c fs/namei.c:4858 do_file_open+0x1c4/0x2e4 fs/namei.c:4887 do_sys_openat2+0x114/0x1e8 fs/open.c:1364 do_sys_open+0xac/0xdc fs/open.c:1370 __do_sys_openat fs/open.c:1386 [inline] __se_sys_openat fs/open.c:1381 [inline] __arm64_sys_openat+0x9c/0xb8 fs/open.c:1381 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 INFO: task syz.7.25:5273 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.7.25 state:D stack:0 pid:5273 tgid:5272 ppid:5119 task_flags:0x400040 flags:0x00800001 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1bec/0x2dcc kernel/sched/core.c:7189 __schedule_loop kernel/sched/core.c:7268 [inline] schedule+0x140/0x218 kernel/sched/core.c:7283 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7340 __mutex_lock_common kernel/locking/mutex.c:726 [inline] __mutex_lock+0x4e4/0xef8 kernel/locking/mutex.c:820 mutex_lock_nested+0x24/0x30 kernel/locking/mutex.c:873 device_lock include/linux/device.h:1040 [inline] usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 chrdev_open+0x398/0x3e8 fs/char_dev.c:411 do_dentry_open+0x5c4/0xfc8 fs/open.c:947 vfs_open+0x44/0x2d4 fs/open.c:1079 do_open fs/namei.c:4699 [inline] path_openat+0x2234/0x2a6c fs/namei.c:4858 do_file_open+0x1c4/0x2e4 fs/namei.c:4887 do_sys_openat2+0x114/0x1e8 fs/open.c:1364 do_sys_open+0xac/0xdc fs/open.c:1370 __do_sys_openat fs/open.c:1386 [inline] __se_sys_openat fs/open.c:1381 [inline] __arm64_sys_openat+0x9c/0xb8 fs/open.c:1381 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 INFO: task syz.8.26:5278 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.8.26 state:D stack:0 pid:5278 tgid:5276 ppid:5120 task_flags:0x400040 flags:0x00800001 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1bec/0x2dcc kernel/sched/core.c:7189 __schedule_loop kernel/sched/core.c:7268 [inline] schedule+0x140/0x218 kernel/sched/core.c:7283 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7340 __mutex_lock_common kernel/locking/mutex.c:726 [inline] __mutex_lock+0x4e4/0xef8 kernel/locking/mutex.c:820 mutex_lock_nested+0x24/0x30 kernel/locking/mutex.c:873 device_lock include/linux/device.h:1040 [inline] usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 chrdev_open+0x398/0x3e8 fs/char_dev.c:411 do_dentry_open+0x5c4/0xfc8 fs/open.c:947 vfs_open+0x44/0x2d4 fs/open.c:1079 do_open fs/namei.c:4699 [inline] path_openat+0x2234/0x2a6c fs/namei.c:4858 do_file_open+0x1c4/0x2e4 fs/namei.c:4887 do_sys_openat2+0x114/0x1e8 fs/open.c:1364 do_sys_open+0xac/0xdc fs/open.c:1370 __do_sys_openat fs/open.c:1386 [inline] __se_sys_openat fs/open.c:1381 [inline] __arm64_sys_openat+0x9c/0xb8 fs/open.c:1381 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 INFO: task syz.6.24:5281 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.6.24 state:D stack:0 pid:5281 tgid:5277 ppid:5114 task_flags:0x400040 flags:0x00800001 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1bec/0x2dcc kernel/sched/core.c:7189 __schedule_loop kernel/sched/core.c:7268 [inline] schedule+0x140/0x218 kernel/sched/core.c:7283 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7340 __mutex_lock_common kernel/locking/mutex.c:726 [inline] __mutex_lock+0x4e4/0xef8 kernel/locking/mutex.c:820 mutex_lock_nested+0x24/0x30 kernel/locking/mutex.c:873 device_lock include/linux/device.h:1040 [inline] usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 chrdev_open+0x398/0x3e8 fs/char_dev.c:411 do_dentry_open+0x5c4/0xfc8 fs/open.c:947 vfs_open+0x44/0x2d4 fs/open.c:1079 do_open fs/namei.c:4699 [inline] path_openat+0x2234/0x2a6c fs/namei.c:4858 do_file_open+0x1c4/0x2e4 fs/namei.c:4887 do_sys_openat2+0x114/0x1e8 fs/open.c:1364 do_sys_open+0xac/0xdc fs/open.c:1370 __do_sys_openat fs/open.c:1386 [inline] __se_sys_openat fs/open.c:1381 [inline] __arm64_sys_openat+0x9c/0xb8 fs/open.c:1381 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 INFO: task syz.9.27:5326 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.9.27 state:D stack:0 pid:5326 tgid:5325 ppid:5286 task_flags:0x400040 flags:0x00800001 Call trace: __switch_to+0x2b0/0x6e0 arch/arm64/kernel/process.c:810 (T) context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1bec/0x2dcc kernel/sched/core.c:7189 __schedule_loop kernel/sched/core.c:7268 [inline] schedule+0x140/0x218 kernel/sched/core.c:7283 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7340 __mutex_lock_common kernel/locking/mutex.c:726 [inline] __mutex_lock+0x4e4/0xef8 kernel/locking/mutex.c:820 mutex_lock_nested+0x24/0x30 kernel/locking/mutex.c:873 device_lock include/linux/device.h:1040 [inline] usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 chrdev_open+0x398/0x3e8 fs/char_dev.c:411 do_dentry_open+0x5c4/0xfc8 fs/open.c:947 vfs_open+0x44/0x2d4 fs/open.c:1079 do_open fs/namei.c:4699 [inline] path_openat+0x2234/0x2a6c fs/namei.c:4858 do_file_open+0x1c4/0x2e4 fs/namei.c:4887 do_sys_openat2+0x114/0x1e8 fs/open.c:1364 do_sys_open+0xac/0xdc fs/open.c:1370 __do_sys_openat fs/open.c:1386 [inline] __se_sys_openat fs/open.c:1381 [inline] __arm64_sys_openat+0x9c/0xb8 fs/open.c:1381 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings Showing all locks held in the system: 5 locks held by kworker/0:1/11: #0: ffff0000c2b85140 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline] #0: ffff0000c2b85140 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x748/0x1098 kernel/workqueue.c:3397 #1: ffff80008eaa7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline] #1: ffff80008eaa7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x750/0x1098 kernel/workqueue.c:3397 #2: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #2: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x12c/0x3b20 drivers/usb/core/hub.c:5899 #3: ffff0000cc10d578 (&port_dev->status_lock){+.+.}-{4:4}, at: usb_lock_port drivers/usb/core/hub.c:3252 [inline] #3: ffff0000cc10d578 (&port_dev->status_lock){+.+.}-{4:4}, at: hub_port_connect drivers/usb/core/hub.c:5464 [inline] #3: ffff0000cc10d578 (&port_dev->status_lock){+.+.}-{4:4}, at: hub_port_connect_change drivers/usb/core/hub.c:5707 [inline] #3: ffff0000cc10d578 (&port_dev->status_lock){+.+.}-{4:4}, at: port_event drivers/usb/core/hub.c:5871 [inline] #3: ffff0000cc10d578 (&port_dev->status_lock){+.+.}-{4:4}, at: hub_event+0x198c/0x3b20 drivers/usb/core/hub.c:5953 #4: ffff0000cbb3d960 (hcd->address0_mutex){+.+.}-{4:4}, at: hub_port_connect drivers/usb/core/hub.c:5465 [inline] #4: ffff0000cbb3d960 (hcd->address0_mutex){+.+.}-{4:4}, at: hub_port_connect_change drivers/usb/core/hub.c:5707 [inline] #4: ffff0000cbb3d960 (hcd->address0_mutex){+.+.}-{4:4}, at: port_event drivers/usb/core/hub.c:5871 [inline] #4: ffff0000cbb3d960 (hcd->address0_mutex){+.+.}-{4:4}, at: hub_event+0x19c0/0x3b20 drivers/usb/core/hub.c:5953 1 lock held by khungtaskd/31: #0: ffff800088b67320 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline] #0: ffff800088b67320 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline] #0: ffff800088b67320 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x4c/0x188 kernel/locking/lockdep.c:6775 2 locks held by pr/ttyAMA-1/41: 1 lock held by klogd/4326: 2 locks held by getty/4486: #0: ffff0000cf5e40a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80009232e2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x354/0xf84 drivers/tty/n_tty.c:2211 1 lock held by syz.3.20/5013: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_release+0x70/0x380 drivers/usb/core/devio.c:1099 1 lock held by syz.1.18/5018: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.4.21/5022: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.0.22/5027: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.2.19/5106: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.5.23/5268: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.7.25/5273: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.8.26/5278: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.6.24/5281: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.9.27/5326: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.0.28/5460: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.1.29/5476: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.2.32/5512: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.3.30/5521: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.4.31/5525: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.5.33/5645: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.9.37/5671: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.6.34/5691: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.7.35/5743: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.8.36/5747: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.0.38/5788: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.1.39/5875: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.2.40/5895: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.3.41/5938: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.4.42/5942: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.5.43/5987: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.6.44/6031: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.7.45/6107: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.9.47/6155: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.8.46/6159: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 3 locks held by kworker/1:11/6162: #0: ffff0000c2b85140 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline] #0: ffff0000c2b85140 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x748/0x1098 kernel/workqueue.c:3397 #1: ffff800092fe7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline] #1: ffff800092fe7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x750/0x1098 kernel/workqueue.c:3397 #2: ffff0000cc45a1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #2: ffff0000cc45a1d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x12c/0x3b20 drivers/usb/core/hub.c:5899 1 lock held by syz.0.48/6206: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.1.49/6242: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.2.50/6280: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.3.51/6355: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.4.52/6359: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.5.53/6405: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.6.54/6449: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.7.55/6493: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.8.56/6543: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.9.57/6581: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.0.58/6620: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.1.59/6657: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.2.60/6695: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.3.61/6733: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.4.62/6774: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.5.63/6864: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.6.64/6863: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.7.65/6909: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.8.66/6962: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 1 lock held by syz.9.67/6994: #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #0: ffff0000cc1081d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x138/0x664 drivers/usb/core/devio.c:1054 =============================================