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INFO: task hung in usbdev_release (2)

Status: upstream: reported C repro on 2023/08/09 15:47
Subsystems: usb
Labels: prio:high
[Documentation on labels]
Reported-by: syzbot+bfa320b67fcbe2583c6f@syzkaller.appspotmail.com
First crash: 1571d, last: 2d21h
Cause bisection: failed (error log, bisect log)
  
Fix bisection: failed (error log, bisect log)
  
▶ ▼ ✨ AI Jobs (2)
ID Workflow Result Correct Bug Created Started Finished Revision Error
4288c58c-2204-4576-9e4f-e8898ff2abfc assessment-security DenialOfService: ✅ Exploitable: ❌ FilesystemTrigger: ❌ NetworkTrigger: ❌ PeripheralTrigger: ✅ RemoteTrigger: ✅ Unprivileged: ❌ UserNamespace: ❌ VMGuestTrigger: ❌ VMHostTrigger: ✅ ❓ INFO: task hung in usbdev_release (2) 2026/05/30 03:31 2026/05/30 03:31 2026/05/30 03:35 6b4a844333e83556da95d61d7f207e7ef5cd4bc6
ee9ba06b-3537-4807-a43c-c19a036b5c2b assessment-security 💥 INFO: task hung in usbdev_release (2) 2026/05/13 00:35 2026/05/13 00:35 2026/05/13 00:35 ac1aeadbb84e4988133fcdf26ca80803a538fe09 failed to run ["git" "-c" "core.hooksPath=/dev/null" "fetch" "--force" "--tags" "433dfd5a8a5d80bbf0669b14e9ed908911a52dd6" "59e4d31a0470503dc922bad1970fc6a1c7dfd76b"]: exit status 128 fatal: remote error: upload-pack: not our ref 59e4d31a0470503dc922bad1970fc6a1c7dfd76b
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [usb?] INFO: task hung in usbdev_release (2) 0 (1) 2023/08/09 15:47
▶ ▼ Similar bugs (8)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in usbdev_release usb 1 20 1637d 2045d 0/29 closed as invalid on 2022/02/07 19:19
linux-5.15 INFO: task hung in usbdev_release 1 1 838d 838d 0/3 auto-obsoleted due to no activity on 2024/06/05 22:03
linux-4.19 INFO: task hung in usbdev_release 1 1 2058d 2058d 0/1 auto-closed as invalid on 2021/02/21 22:17
linux-6.1 INFO: task hung in usbdev_release 1 1 1186d 1186d 0/3 auto-obsoleted due to no activity on 2023/07/13 23:24
linux-4.19 INFO: task hung in usbdev_release (2) 1 10 1313d 1779d 0/1 auto-obsoleted due to no activity on 2023/03/08 04:55
linux-4.14 INFO: task hung in usbdev_release 1 2 1993d 2056d 0/1 auto-closed as invalid on 2021/04/27 06:36
linux-6.1 INFO: task hung in usbdev_release (2) origin:upstream 1 C error 9 339d 1001d 0/3 upstream: reported C repro on 2023/09/16 19:39
android-6-12 INFO: task hung in usbdev_release 1 1 220d 220d 0/1 auto-obsoleted due to no activity on 2026/02/03 09:29
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2026/05/28 08:22 32m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2026/05/08 21:36 22m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci error
2026/02/09 10:42 1h20m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci error
2024/11/25 19:06 27m retest repro upstream OK log
2024/11/20 23:33 31m retest repro upstream OK log
2024/11/20 22:48 25m retest repro upstream OK log
2024/11/20 21:36 25m retest repro upstream OK log
2024/11/20 20:55 32m retest repro upstream OK log
2024/09/16 16:43 17m retest repro upstream report log
2024/09/11 21:19 48m retest repro upstream report log
▶ ▼ Fix bisection attempts (5)
Created Duration User Patch Repo Result
2025/06/11 23:34 9m bisect fix upstream error job log
2025/04/20 06:24 2h26m bisect fix upstream OK (0) job log log
2025/01/21 12:44 2h21m bisect fix upstream OK (0) job log log
2024/12/04 20:24 1h59m bisect fix upstream OK (0) job log log
2023/10/11 17:48 3h02m bisect fix upstream OK (0) job log log

Sample crash report:
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

=============================================

Crashes (123):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/06/11 05:38 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 596d152bc5e3 b754d2d8 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in usbdev_release
2026/05/13 08:03 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 5cbb61bf4168 a0949470 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in usbdev_release
2026/01/13 12:43 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in usbdev_release
2026/05/14 07:53 upstream e1914add2799 6ccb967e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2026/04/22 08:30 upstream 4ee64205ffaa 0b6ab7ec .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in usbdev_release
2026/04/08 17:29 upstream 3036cd0d3328 d9b7f621 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2026/04/07 14:59 upstream bfe62a454542 628666c6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2026/04/04 01:42 upstream 631919fb12fe 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2026/04/01 23:32 upstream 9147566d8016 0285fe54 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2026/03/02 04:39 upstream e2bd1b136926 43249bac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2026/02/24 10:00 upstream 7dff99b35460 41d2fa6a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2026/02/17 04:03 upstream 57d76ceccee4 5d52cba5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2026/01/26 09:07 upstream 023777797472 55756628 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in usbdev_release
2026/01/23 23:28 upstream c072629f05d7 3181850c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in usbdev_release
2026/01/06 16:29 upstream 7f98ab9da046 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2025/12/30 18:57 upstream 8640b74557fc d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2025/11/05 23:57 upstream 1c353dc8d962 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2025/11/04 06:21 upstream 8bb886cb8f3a 686bf657 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2025/11/02 20:37 upstream 691d401c7e0e 2c50b6a9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2025/09/19 04:29 upstream cbf658dd0941 e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in usbdev_release
2025/09/13 09:04 upstream 22f20375f5b7 e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2025/08/24 01:07 upstream 8d245acc1e88 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2025/07/25 00:58 upstream 25fae0b93d1d fb8f743d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in usbdev_release
2025/06/24 02:37 upstream 78f4e737a53e 1a7fb460 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2025/03/21 06:23 upstream 5fc319360819 62330552 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2025/02/25 00:49 upstream d082ecbc71e9 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2025/02/12 12:12 upstream 09fbf3d50205 f2baddf5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2025/02/06 20:06 upstream 92514ef226f5 577d049b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in usbdev_release
2024/12/22 12:12 upstream 48f506ad0b68 d7f584ee .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2024/10/27 09:01 upstream 850925a8133c 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in usbdev_release
2024/10/14 05:12 upstream ba01565ced22 084d8178 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in usbdev_release
2024/10/12 06:51 upstream 9e4c6c1ad9a1 084d8178 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2024/10/01 02:08 upstream 9852d85ec9d4 bbd4e0a4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2024/08/28 18:10 upstream 86987d84b968 940f38c1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in usbdev_release
2024/08/10 19:14 upstream afdab700f65e 6f4edef4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2024/08/01 04:16 upstream e4fc196f5ba3 1e9c4cf3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2024/07/11 15:22 upstream 9d9a2f29aefd c699c2eb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in usbdev_release
2024/07/09 03:11 upstream 4376e966ecb7 bc23a442 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in usbdev_release
2024/06/09 14:46 upstream 771ed66105de 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2024/06/04 20:31 upstream 2ab795141095 a1feae05 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in usbdev_release
2024/05/24 22:17 upstream 8f6a15f095a6 8f98448e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in usbdev_release
2024/01/16 04:04 upstream 052d534373b7 2a7bcc7f .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in usbdev_release
2023/11/02 16:52 upstream babe393974de b5f07fd3 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in usbdev_release
2023/10/14 20:40 upstream 727fb8376504 6388bc36 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in usbdev_release
2023/09/01 05:05 upstream b97d64c72259 696ea0d2 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2023/08/05 15:40 upstream 024ff300db33 4ffcc9ef .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in usbdev_release
2025/05/11 22:45 upstream 3ce9925823c7 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in usbdev_release
2025/03/04 20:07 upstream 99fa936e8e4f c3901742 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in usbdev_release
2024/09/24 02:46 upstream abf2050f51fd 89298aad .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in usbdev_release
2024/09/22 16:29 upstream 88264981f208 6f888b75 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in usbdev_release
2024/09/22 11:18 upstream 88264981f208 6f888b75 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in usbdev_release
2024/09/19 04:57 upstream 4a39ac5b7d62 c673ca06 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in usbdev_release
2023/07/19 16:22 upstream ccff6d117d8d 022df2bb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in usbdev_release
2022/02/23 12:43 upstream 5c1ee569660d 6e821dbf .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in usbdev_release
2025/10/28 08:45 linux-next f7d2388eeec2 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: task hung in usbdev_release
2025/10/27 19:02 linux-next 8fec172c82c2 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce INFO: task hung in usbdev_release
2023/12/26 15:38 linux-next 39676dfe5233 fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in usbdev_release
2026/06/11 02:40 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 596d152bc5e3 b754d2d8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in usbdev_release
2026/05/13 05:02 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 5cbb61bf4168 a0949470 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in usbdev_release
2023/12/09 13:23 git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git fixes 3fec323339a4 28b24332 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-riscv64 INFO: task hung in usbdev_release
* Struck through repros no longer work on HEAD.