INFO: task syz-executor.5:22757 blocked for more than 143 seconds. Not tainted 5.15.106-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack: 0 pid:22757 ppid: 4104 flags:0x00000001 Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5026 [inline] __schedule+0xf10/0x1e38 kernel/sched/core.c:6372 schedule+0x11c/0x1c8 kernel/sched/core.c:6455 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6514 rwsem_down_read_slowpath+0x5b0/0x988 kernel/locking/rwsem.c:1047 __down_read_common+0x6c/0x2dc kernel/locking/rwsem.c:1231 __down_read kernel/locking/rwsem.c:1244 [inline] down_read+0xc8/0x11c kernel/locking/rwsem.c:1490 inode_lock_shared include/linux/fs.h:797 [inline] lookup_slow+0x50/0x84 fs/namei.c:1675 walk_component+0x394/0x4cc fs/namei.c:1972 lookup_last fs/namei.c:2427 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2451 filename_lookup+0x1c4/0x4c8 fs/namei.c:2480 user_path_at_empty+0x5c/0x1a4 fs/namei.c:2853 user_path_at include/linux/namei.h:57 [inline] vfs_statx+0xf8/0x378 fs/stat.c:221 vfs_fstatat fs/stat.c:243 [inline] __do_sys_newfstatat fs/stat.c:411 [inline] __se_sys_newfstatat fs/stat.c:405 [inline] __arm64_sys_newfstatat+0x110/0x194 fs/stat.c:405 __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+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 INFO: task syz-executor.5:22758 blocked for more than 143 seconds. Not tainted 5.15.106-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack: 0 pid:22758 ppid: 4104 flags:0x00000001 Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5026 [inline] __schedule+0xf10/0x1e38 kernel/sched/core.c:6372 schedule+0x11c/0x1c8 kernel/sched/core.c:6455 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6514 rwsem_down_read_slowpath+0x5b0/0x988 kernel/locking/rwsem.c:1047 __down_read_common+0x6c/0x2dc kernel/locking/rwsem.c:1231 __down_read kernel/locking/rwsem.c:1244 [inline] down_read+0xc8/0x11c kernel/locking/rwsem.c:1490 inode_lock_shared include/linux/fs.h:797 [inline] lookup_slow+0x50/0x84 fs/namei.c:1675 walk_component+0x394/0x4cc fs/namei.c:1972 lookup_last fs/namei.c:2427 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2451 filename_lookup+0x1c4/0x4c8 fs/namei.c:2480 user_path_at_empty+0x5c/0x1a4 fs/namei.c:2853 user_path_at include/linux/namei.h:57 [inline] path_setxattr+0xbc/0x258 fs/xattr.c:625 __do_sys_lsetxattr fs/xattr.c:653 [inline] __se_sys_lsetxattr fs/xattr.c:649 [inline] __arm64_sys_lsetxattr+0xbc/0xd8 fs/xattr.c:649 __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+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 INFO: task syz-executor.5:22759 blocked for more than 143 seconds. Not tainted 5.15.106-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack: 0 pid:22759 ppid: 4104 flags:0x00000001 Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5026 [inline] __schedule+0xf10/0x1e38 kernel/sched/core.c:6372 schedule+0x11c/0x1c8 kernel/sched/core.c:6455 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6514 rwsem_down_read_slowpath+0x5b0/0x988 kernel/locking/rwsem.c:1047 __down_read_common+0x6c/0x2dc kernel/locking/rwsem.c:1231 __down_read kernel/locking/rwsem.c:1244 [inline] down_read+0xc8/0x11c kernel/locking/rwsem.c:1490 inode_lock_shared include/linux/fs.h:797 [inline] lookup_slow+0x50/0x84 fs/namei.c:1675 walk_component+0x394/0x4cc fs/namei.c:1972 lookup_last fs/namei.c:2427 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2451 filename_lookup+0x1c4/0x4c8 fs/namei.c:2480 user_path_at_empty+0x5c/0x1a4 fs/namei.c:2853 user_path_at include/linux/namei.h:57 [inline] do_mount fs/namespace.c:3334 [inline] __do_sys_mount fs/namespace.c:3545 [inline] __se_sys_mount fs/namespace.c:3522 [inline] __arm64_sys_mount+0x4dc/0x5e0 fs/namespace.c:3522 __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+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 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: ffff800014aa1660 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:268 2 locks held by getty/3734: #0: ffff0000d3266098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340 #1: ffff80001a11e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1200 drivers/tty/n_tty.c:2147 2 locks held by kworker/0:5/4170: 2 locks held by kworker/u4:12/4304: 2 locks held by kworker/u4:22/4749: #0: ffff0001b4810d18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:475 [inline] #0: ffff0001b4810d18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1325 [inline] #0: ffff0001b4810d18 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1620 [inline] #0: ffff0001b4810d18 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x328/0x1e38 kernel/sched/core.c:6286 #1: ffff0001b47fec48 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x438/0x66c kernel/sched/psi.c:891 4 locks held by syz-executor.5/22737: 1 lock held by syz-executor.5/22757: #0: ffff000120dea2b0 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff000120dea2b0 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1675 1 lock held by syz-executor.5/22758: #0: ffff000120dea2b0 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff000120dea2b0 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1675 1 lock held by syz-executor.5/22759: #0: ffff000120dea2b0 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff000120dea2b0 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1675 4 locks held by syz-executor.4/23092: 1 lock held by syz-executor.4/23124: #0: ffff0001247fc920 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0001247fc920 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1675 1 lock held by syz-executor.4/23128: #0: ffff0001247fc920 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0001247fc920 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1675 1 lock held by syz-executor.4/23130: #0: ffff0001247fc920 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0001247fc920 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1675 1 lock held by syz-executor.2/25991: 1 lock held by syz-executor.0/26006: 2 locks held by syz-executor.5/26008: =============================================