INFO: task syz.0.16:5384 blocked for more than 143 seconds. Not tainted 5.15.185-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.16 state:D stack: 0 pid: 5384 ppid: 4848 flags:0x00000001 Call trace: __switch_to+0x2f4/0x558 arch/arm64/kernel/process.c:521 context_switch kernel/sched/core.c:5030 [inline] __schedule+0xe00/0x1c0c kernel/sched/core.c:6376 schedule+0x11c/0x1c8 kernel/sched/core.c:6459 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6518 rwsem_down_read_slowpath+0x46c/0x8bc kernel/locking/rwsem.c:1055 __down_read_common kernel/locking/rwsem.c:1239 [inline] __down_read kernel/locking/rwsem.c:1252 [inline] down_read+0x100/0x390 kernel/locking/rwsem.c:1500 inode_lock_shared include/linux/fs.h:797 [inline] open_last_lookups fs/namei.c:3531 [inline] path_openat+0x5e4/0x26e4 fs/namei.c:3739 do_filp_open+0x164/0x330 fs/namei.c:3769 do_sys_openat2+0x128/0x3d8 fs/open.c:1253 do_sys_open fs/open.c:1269 [inline] __do_sys_openat fs/open.c:1285 [inline] __se_sys_openat fs/open.c:1280 [inline] __arm64_sys_openat+0x120/0x154 fs/open.c:1280 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffff8000143311e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:311 2 locks held by getty/3786: #0: ffff0000d3d21098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340 #1: ffff80001b7a02e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c drivers/tty/n_tty.c:2158 2 locks held by syz.0.16/5383: 1 lock held by syz.0.16/5384: #0: ffff0000e966c188 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000e966c188 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: open_last_lookups fs/namei.c:3531 [inline] #0: ffff0000e966c188 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: path_openat+0x5e4/0x26e4 fs/namei.c:3739 2 locks held by syz.4.20/5390: 1 lock held by syz.4.20/5395: #0: ffff0000e966c6d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000e966c6d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: open_last_lookups fs/namei.c:3531 [inline] #0: ffff0000e966c6d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: path_openat+0x5e4/0x26e4 fs/namei.c:3739 3 locks held by syz.2.18/5392: 1 lock held by syz.2.18/5396: #0: ffff0000e970c188 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000e970c188 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: open_last_lookups fs/namei.c:3531 [inline] #0: ffff0000e970c188 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: path_openat+0x5e4/0x26e4 fs/namei.c:3739 2 locks held by syz.1.17/5402: 1 lock held by syz.1.17/5408: #0: ffff0000e966cc18 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000e966cc18 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: open_last_lookups fs/namei.c:3531 [inline] #0: ffff0000e966cc18 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: path_openat+0x5e4/0x26e4 fs/namei.c:3739 2 locks held by syz.3.19/5407: 1 lock held by syz.3.19/5411: #0: ffff0000e970c6d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000e970c6d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: open_last_lookups fs/namei.c:3531 [inline] #0: ffff0000e970c6d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: path_openat+0x5e4/0x26e4 fs/namei.c:3739 3 locks held by kworker/u4:9/5547: 3 locks held by syz.7.23/5633: 1 lock held by syz.7.23/5634: #0: ffff0000e966d160 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000e966d160 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: open_last_lookups fs/namei.c:3531 [inline] #0: ffff0000e966d160 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: path_openat+0x5e4/0x26e4 fs/namei.c:3739 2 locks held by syz.5.21/5636: 1 lock held by syz.5.21/5638: #0: ffff0000e966d6a8 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000e966d6a8 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: open_last_lookups fs/namei.c:3531 [inline] #0: ffff0000e966d6a8 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: path_openat+0x5e4/0x26e4 fs/namei.c:3739 2 locks held by syz.9.25/5640: 1 lock held by syz.9.25/5641: #0: ffff0000e970cc18 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000e970cc18 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: open_last_lookups fs/namei.c:3531 [inline] #0: ffff0000e970cc18 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: path_openat+0x5e4/0x26e4 fs/namei.c:3739 2 locks held by syz.8.24/5643: 1 lock held by syz.8.24/5646: #0: ffff0000e966dbf0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000e966dbf0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: open_last_lookups fs/namei.c:3531 [inline] #0: ffff0000e966dbf0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: path_openat+0x5e4/0x26e4 fs/namei.c:3739 2 locks held by syz.6.22/5645: 1 lock held by syz.6.22/5647: #0: ffff0000e970d160 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000e970d160 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: open_last_lookups fs/namei.c:3531 [inline] #0: ffff0000e970d160 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: path_openat+0x5e4/0x26e4 fs/namei.c:3739 =============================================