INFO: task syz-executor.0:6346 blocked for more than 143 seconds. Not tainted 6.5.0-rc7-syzkaller-00071-gfe4469582053 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:0 pid:6346 ppid:1 flags:0x00000005 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5381 [inline] __schedule+0x1364/0x23b4 kernel/sched/core.c:6710 schedule+0xc4/0x170 kernel/sched/core.c:6786 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6845 rwsem_down_read_slowpath+0x57c/0xe58 kernel/locking/rwsem.c:1086 __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0xa0/0x2fc kernel/locking/rwsem.c:1522 inode_lock_shared include/linux/fs.h:781 [inline] lookup_slow+0x50/0x84 fs/namei.c:1706 walk_component fs/namei.c:1998 [inline] link_path_walk+0x7c8/0xc5c fs/namei.c:2325 path_openat+0x1cc/0x27f8 fs/namei.c:3789 do_filp_open+0x1bc/0x3cc fs/namei.c:3820 do_sys_openat2+0x124/0x1b8 fs/open.c:1407 do_sys_open fs/open.c:1422 [inline] __do_sys_openat fs/open.c:1438 [inline] __se_sys_openat fs/open.c:1433 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1433 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 INFO: task syz-executor.0:6436 blocked for more than 143 seconds. Not tainted 6.5.0-rc7-syzkaller-00071-gfe4469582053 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:0 pid:6436 ppid:6346 flags:0x0000000d Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5381 [inline] __schedule+0x1364/0x23b4 kernel/sched/core.c:6710 schedule+0xc4/0x170 kernel/sched/core.c:6786 request_wait_answer fs/fuse/dev.c:407 [inline] __fuse_request_send fs/fuse/dev.c:426 [inline] fuse_simple_request+0xea8/0x17b0 fs/fuse/dev.c:513 fuse_lookup_name+0x27c/0x6a4 fs/fuse/dir.c:392 fuse_lookup+0x13c/0x4b0 fs/fuse/dir.c:431 __lookup_slow+0x250/0x374 fs/namei.c:1690 lookup_slow+0x60/0x84 fs/namei.c:1707 walk_component fs/namei.c:1998 [inline] link_path_walk+0x7c8/0xc5c fs/namei.c:2325 path_openat+0x1cc/0x27f8 fs/namei.c:3789 do_filp_open+0x1bc/0x3cc fs/namei.c:3820 do_sys_openat2+0x124/0x1b8 fs/open.c:1407 do_sys_open fs/open.c:1422 [inline] __do_sys_openat fs/open.c:1438 [inline] __se_sys_openat fs/open.c:1433 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1433 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 INFO: task syz-executor.0:6440 blocked for more than 143 seconds. Not tainted 6.5.0-rc7-syzkaller-00071-gfe4469582053 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:0 pid:6440 ppid:6346 flags:0x00000005 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5381 [inline] __schedule+0x1364/0x23b4 kernel/sched/core.c:6710 schedule+0xc4/0x170 kernel/sched/core.c:6786 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6845 rwsem_down_write_slowpath+0xcfc/0x1aa0 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write_nested+0xc0/0xcc kernel/locking/rwsem.c:1690 inode_lock_nested include/linux/fs.h:806 [inline] fuse_reverse_inval_entry+0xb4/0x754 fs/fuse/dir.c:1250 fuse_dev_do_write+0x2a4c/0x373c fs/fuse/dev.c:1876 fuse_dev_write+0x138/0x1b4 fs/fuse/dev.c:1960 call_write_iter include/linux/fs.h:1877 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x628/0x93c fs/read_write.c:584 ksys_write+0x15c/0x26c fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/13: #0: ffff80008e2718d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:522 1 lock held by rcu_tasks_trace/14: #0: ffff80008e271c90 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:522 1 lock held by khungtaskd/28: #0: ffff80008e271700 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:302 1 lock held by klogd/5598: #0: ffff0001b420c998 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:558 [inline] #0: ffff0001b420c998 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1366 [inline] #0: ffff0001b420c998 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1675 [inline] #0: ffff0001b420c998 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x2d8/0x23b4 kernel/sched/core.c:6627 2 locks held by getty/5750: #0: ffff0000d42a5098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff8000959122f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1214 drivers/tty/n_tty.c:2187 1 lock held by syz-executor.0/6346: #0: ffff0000e4e38150 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:781 [inline] #0: ffff0000e4e38150 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1706 2 locks held by syz-executor.0/6436: #0: ffff0000e4e38150 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:781 [inline] #0: ffff0000e4e38150 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1706 #1: ffff0000e4e385b8 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0xd4/0x11c fs/fuse/inode.c:475 2 locks held by syz-executor.0/6440: #0: ffff0000c2ab9b38 (&fc->killsb){.+.+}-{3:3}, at: fuse_notify_delete fs/fuse/dev.c:1551 [inline] #0: ffff0000c2ab9b38 (&fc->killsb){.+.+}-{3:3}, at: fuse_notify fs/fuse/dev.c:1801 [inline] #0: ffff0000c2ab9b38 (&fc->killsb){.+.+}-{3:3}, at: fuse_dev_do_write+0x2a00/0x373c fs/fuse/dev.c:1876 #1: ffff0000e4e38150 (&type->i_mutex_dir_key#8/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:806 [inline] #1: ffff0000e4e38150 (&type->i_mutex_dir_key#8/1){+.+.}-{3:3}, at: fuse_reverse_inval_entry+0xb4/0x754 fs/fuse/dir.c:1250 =============================================