INFO: task syz-executor.0:3172 blocked for more than 143 seconds. Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:0 pid:3172 ppid:1 flags:0x00000001 Call trace: __switch_to+0x180/0x298 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5209 [inline] __schedule+0x408/0x594 kernel/sched/core.c:6521 schedule+0x64/0xa4 kernel/sched/core.c:6597 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6656 __mutex_lock_common+0x788/0xca8 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 fuse_lock_inode+0x50/0x70 fs/fuse/inode.c:468 fuse_lookup+0x74/0x274 fs/fuse/dir.c:432 __lookup_slow+0x14c/0x204 fs/namei.c:1685 lookup_slow+0x44/0x68 fs/namei.c:1702 walk_component fs/namei.c:1993 [inline] link_path_walk+0x474/0x628 fs/namei.c:2320 path_openat+0xb8/0x11c4 fs/namei.c:3710 do_filp_open+0xdc/0x1b8 fs/namei.c:3741 do_sys_openat2+0xb8/0x22c fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __arm64_sys_openat+0xb0/0xe0 fs/open.c:1337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 INFO: task syz-executor.0:3193 blocked for more than 143 seconds. Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:0 pid:3193 ppid:3172 flags:0x00000009 Call trace: __switch_to+0x180/0x298 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5209 [inline] __schedule+0x408/0x594 kernel/sched/core.c:6521 schedule+0x64/0xa4 kernel/sched/core.c:6597 request_wait_answer+0x1c0/0x3a8 fs/fuse/dev.c:407 __fuse_request_send+0x1f8/0x264 fs/fuse/dev.c:426 fuse_simple_request+0x354/0x40c fs/fuse/dev.c:511 fuse_lookup_name+0x104/0x324 fs/fuse/dir.c:392 fuse_lookup+0x90/0x274 fs/fuse/dir.c:433 __lookup_slow+0x14c/0x204 fs/namei.c:1685 lookup_slow+0x44/0x68 fs/namei.c:1702 walk_component fs/namei.c:1993 [inline] link_path_walk+0x474/0x628 fs/namei.c:2320 path_openat+0xb8/0x11c4 fs/namei.c:3710 do_filp_open+0xdc/0x1b8 fs/namei.c:3741 do_sys_openat2+0xb8/0x22c fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __arm64_sys_openat+0xb0/0xe0 fs/open.c:1337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/11: #0: ffff80000d4a4768 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507 1 lock held by rcu_tasks_trace/12: #0: ffff80000d4a4db8 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507 1 lock held by khungtaskd/27: #0: ffff80000d4a4640 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:303 1 lock held by klogd/2593: #0: ffff0001fefeee98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:537 [inline] #0: ffff0001fefeee98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1354 [inline] #0: ffff0001fefeee98 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1644 [inline] #0: ffff0001fefeee98 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0xa4/0x594 kernel/sched/core.c:6438 2 locks held by getty/2755: #0: ffff0000c7d96098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x28/0x58 drivers/tty/tty_ldisc.c:244 #1: ffff80000f6be2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x19c/0x89c drivers/tty/n_tty.c:2177 3 locks held by kworker/u4:1/3147: #0: ffff0001fefeee98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2c/0x44 kernel/sched/core.c:537 #1: ffff0001fefddb88 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x23c/0x380 kernel/sched/psi.c:897 #2: ffff0001fefde758 (&base->lock){-.-.}-{2:2}, at: lock_timer_base kernel/time/timer.c:999 [inline] #2: ffff0001fefde758 (&base->lock){-.-.}-{2:2}, at: __mod_timer+0x120/0x6d8 kernel/time/timer.c:1072 2 locks held by syz-executor.0/3172: #0: ffff0000ca978150 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:766 [inline] #0: ffff0000ca978150 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lookup_slow+0x34/0x68 fs/namei.c:1701 #1: ffff0000ca9785b8 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0x50/0x70 fs/fuse/inode.c:468 2 locks held by syz-executor.0/3193: #0: ffff0000ca978150 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:766 [inline] #0: ffff0000ca978150 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lookup_slow+0x34/0x68 fs/namei.c:1701 #1: ffff0000ca9785b8 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0x50/0x70 fs/fuse/inode.c:468 =============================================