INFO: task syz-executor299:4306 blocked for more than 143 seconds. Not tainted 6.1.115-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor299 state:D stack:0 pid:4306 ppid:4291 flags:0x00000005 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5241 [inline] __schedule+0xef4/0x1d44 kernel/sched/core.c:6558 schedule+0xc4/0x170 kernel/sched/core.c:6634 d_wait_lookup+0x1a0/0x27c fs/dcache.c:2632 d_alloc_parallel+0x9b0/0x1184 fs/dcache.c:2714 __lookup_slow+0x108/0x374 fs/namei.c:1675 lookup_slow+0x60/0x84 fs/namei.c:1707 walk_component fs/namei.c:1998 [inline] link_path_walk+0x830/0xcc8 fs/namei.c:2325 path_openat+0x1c8/0x2548 fs/namei.c:3779 do_filp_open+0x1bc/0x3cc fs/namei.c:3810 do_sys_openat2+0x128/0x3e0 fs/open.c:1318 do_sys_open fs/open.c:1334 [inline] __do_sys_openat fs/open.c:1350 [inline] __se_sys_openat fs/open.c:1345 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1345 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 INFO: task syz-executor299:4307 blocked for more than 143 seconds. Not tainted 6.1.115-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor299 state:D stack:0 pid:4307 ppid:4294 flags:0x00000005 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5241 [inline] __schedule+0xef4/0x1d44 kernel/sched/core.c:6558 schedule+0xc4/0x170 kernel/sched/core.c:6634 d_wait_lookup+0x1a0/0x27c fs/dcache.c:2632 d_alloc_parallel+0x9b0/0x1184 fs/dcache.c:2714 __lookup_slow+0x108/0x374 fs/namei.c:1675 lookup_slow+0x60/0x84 fs/namei.c:1707 walk_component fs/namei.c:1998 [inline] link_path_walk+0x830/0xcc8 fs/namei.c:2325 path_openat+0x1c8/0x2548 fs/namei.c:3779 do_filp_open+0x1bc/0x3cc fs/namei.c:3810 do_sys_openat2+0x128/0x3e0 fs/open.c:1318 do_sys_open fs/open.c:1334 [inline] __do_sys_openat fs/open.c:1350 [inline] __se_sys_openat fs/open.c:1345 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1345 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 INFO: task syz-executor299:4308 blocked for more than 143 seconds. Not tainted 6.1.115-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor299 state:D stack:0 pid:4308 ppid:4292 flags:0x00000005 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5241 [inline] __schedule+0xef4/0x1d44 kernel/sched/core.c:6558 schedule+0xc4/0x170 kernel/sched/core.c:6634 d_wait_lookup+0x1a0/0x27c fs/dcache.c:2632 d_alloc_parallel+0x9b0/0x1184 fs/dcache.c:2714 __lookup_slow+0x108/0x374 fs/namei.c:1675 lookup_slow+0x60/0x84 fs/namei.c:1707 walk_component fs/namei.c:1998 [inline] link_path_walk+0x830/0xcc8 fs/namei.c:2325 path_openat+0x1c8/0x2548 fs/namei.c:3779 do_filp_open+0x1bc/0x3cc fs/namei.c:3810 do_sys_openat2+0x128/0x3e0 fs/open.c:1318 do_sys_open fs/open.c:1334 [inline] __do_sys_openat fs/open.c:1350 [inline] __se_sys_openat fs/open.c:1345 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1345 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 INFO: task syz-executor299:4312 blocked for more than 143 seconds. Not tainted 6.1.115-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor299 state:D stack:0 pid:4312 ppid:4293 flags:0x00000005 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5241 [inline] __schedule+0xef4/0x1d44 kernel/sched/core.c:6558 schedule+0xc4/0x170 kernel/sched/core.c:6634 d_wait_lookup+0x1a0/0x27c fs/dcache.c:2632 d_alloc_parallel+0x9b0/0x1184 fs/dcache.c:2714 __lookup_slow+0x108/0x374 fs/namei.c:1675 lookup_slow+0x60/0x84 fs/namei.c:1707 walk_component fs/namei.c:1998 [inline] link_path_walk+0x830/0xcc8 fs/namei.c:2325 path_openat+0x1c8/0x2548 fs/namei.c:3779 do_filp_open+0x1bc/0x3cc fs/namei.c:3810 do_sys_openat2+0x128/0x3e0 fs/open.c:1318 do_sys_open fs/open.c:1334 [inline] __do_sys_openat fs/open.c:1350 [inline] __se_sys_openat fs/open.c:1345 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1345 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffff800015ba5bf0 ( rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:517 1 lock held by rcu_tasks_trace/13: #0: ffff800015ba63f0 ( rcu_tasks_trace.tasks_gp_mutex ){+.+.}-{3:3} , at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:517 1 lock held by khungtaskd/28: #0: ffff800015ba5a20 ( rcu_read_lock ){....}-{1:2} , at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:349 2 locks held by getty/4055: #0: ffff0000d66f2098 ( &tty->ldisc_sem ){++++}-{0:0} , at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80001efd02f0 ( &ldata->atomic_read_lock ){+.+.}-{3:3} , at: n_tty_read+0x414/0x1214 drivers/tty/n_tty.c:2198 4 locks held by syz-executor299/4296: 1 lock held by syz-executor299/4306: #0: ffff0000e4878198 (&type->i_mutex_dir_key#6){.+.+}-{3:3} , at: inode_lock_shared include/linux/fs.h:768 [inline] , at: lookup_slow+0x50/0x84 fs/namei.c:1706 1 lock held by syz-executor299/4299: 1 lock held by syz-executor299/4307: #0: ffff0000e4878c48 (&type->i_mutex_dir_key#6){.+.+}-{3:3} , at: inode_lock_shared include/linux/fs.h:768 [inline] , at: lookup_slow+0x50/0x84 fs/namei.c:1706 1 lock held by syz-executor299/4301: 1 lock held by syz-executor299/4308: #0: ffff0000e48796f8 (&type->i_mutex_dir_key#6){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline] ffff0000e48796f8 (&type->i_mutex_dir_key#6){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1706 1 lock held by syz-executor299/4304: 1 lock held by syz-executor299/4312: #0: ffff0000e487a1a8 ( &type->i_mutex_dir_key #6 ){.+.+}-{3:3} , at: inode_lock_shared include/linux/fs.h:768 [inline] , at: lookup_slow+0x50/0x84 fs/namei.c:1706 1 lock held by syz-executor299/4311: =============================================