INFO: task syz-executor.0:9730 blocked for more than 430 seconds.
      Not tainted 6.6.0-rc1-syzkaller-00011-g3fec323339a4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:0     pid:9730  ppid:2971   flags:0x00000004
Call Trace:
[<ffffffff836bdd90>] context_switch kernel/sched/core.c:5382 [inline]
[<ffffffff836bdd90>] __schedule+0x794/0x1884 kernel/sched/core.c:6695
[<ffffffff836beef8>] schedule+0x78/0xfe kernel/sched/core.c:6771
[<ffffffff836bf566>] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:6830
[<ffffffff836c1956>] __mutex_lock_common kernel/locking/mutex.c:679 [inline]
[<ffffffff836c1956>] __mutex_lock+0x66a/0xa56 kernel/locking/mutex.c:747
[<ffffffff836c1d56>] mutex_lock_nested+0x14/0x1c kernel/locking/mutex.c:799
[<ffffffff81e320cc>] device_lock include/linux/device.h:992 [inline]
[<ffffffff81e320cc>] usbdev_release+0x52/0x300 drivers/usb/core/devio.c:1096
[<ffffffff805e4150>] __fput+0x252/0x594 fs/file_table.c:384
[<ffffffff805e456e>] __fput_sync+0x5e/0x72 fs/file_table.c:465
[<ffffffff805dad9c>] __do_sys_close fs/open.c:1572 [inline]
[<ffffffff805dad9c>] __se_sys_close fs/open.c:1557 [inline]
[<ffffffff805dad9c>] __riscv_sys_close+0x56/0xba fs/open.c:1557
[<ffffffff8000a908>] syscall_handler+0x76/0xba arch/riscv/include/asm/syscall.h:90
[<ffffffff836b6b0c>] do_trap_ecall_u+0x9c/0x9e arch/riscv/kernel/traps.c:320
[<ffffffff80005c30>] ret_from_exception+0x0/0x64 arch/riscv/kernel/entry.S:102
INFO: lockdep is turned off.
Kernel panic - not syncing: hung_task: blocked tasks
CPU: 0 PID: 34 Comm: khungtaskd Not tainted 6.6.0-rc1-syzkaller-00011-g3fec323339a4 #0
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff8000b904>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:121
[<ffffffff836750b8>] show_stack+0x34/0x40 arch/riscv/kernel/stacktrace.c:127
[<ffffffff836b56c0>] __dump_stack lib/dump_stack.c:88 [inline]
[<ffffffff836b56c0>] dump_stack_lvl+0xe8/0x154 lib/dump_stack.c:106
[<ffffffff836b5748>] dump_stack+0x1c/0x24 lib/dump_stack.c:113
[<ffffffff83675b16>] panic+0x27c/0x646 kernel/panic.c:340
[<ffffffff8026f1ae>] check_hung_uninterruptible_tasks kernel/hung_task.c:226 [inline]
[<ffffffff8026f1ae>] watchdog+0x954/0xdd0 kernel/hung_task.c:379
[<ffffffff800daf3c>] kthread+0x1bc/0x22c kernel/kthread.c:388
[<ffffffff80005d76>] ret_from_fork+0xa/0x1c arch/riscv/kernel/entry.S:264
SMP: stopping secondary CPUs
Rebooting in 86400 seconds..