INFO: task syz.0.16:5271 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: 5271 ppid: 4861 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 d_wait_lookup+0x154/0x22c fs/dcache.c:2569 d_alloc_parallel+0x998/0x1104 fs/dcache.c:2651 __lookup_slow+0x104/0x380 fs/namei.c:1648 lookup_slow+0x5c/0x80 fs/namei.c:1680 walk_component+0x2b0/0x3a8 fs/namei.c:1976 link_path_walk+0x590/0xb8c fs/namei.c:-1 path_openat+0x1c0/0x26e4 fs/namei.c:3738 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 INFO: task syz.1.17:5289 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.1.17 state:D stack: 0 pid: 5289 ppid: 4865 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 d_wait_lookup+0x154/0x22c fs/dcache.c:2569 d_alloc_parallel+0x998/0x1104 fs/dcache.c:2651 __lookup_slow+0x104/0x380 fs/namei.c:1648 lookup_slow+0x5c/0x80 fs/namei.c:1680 walk_component+0x2b0/0x3a8 fs/namei.c:1976 link_path_walk+0x590/0xb8c fs/namei.c:-1 path_openat+0x1c0/0x26e4 fs/namei.c:3738 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/3789: #0: ffff0000d39f6098 (&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 3 locks held by kworker/1:12/4183: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x678/0x1140 kernel/workqueue.c:2283 #1: ffff80001f2f7c00 (binder_deferred_work){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1140 kernel/workqueue.c:2285 #2: ffff0000cd2fdad8 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0x60/0xa64 kernel/sched/core.c:4030 3 locks held by kworker/0:17/4819: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x678/0x1140 kernel/workqueue.c:2283 #1: ffff0001a10e9c48 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x414/0x68c kernel/sched/psi.c:891 #2: ffff800016024668 (binder_deferred_lock){+.+.}-{3:3}, at: binder_deferred_func+0x4c/0x1a0c drivers/android/binder.c:5720 2 locks held by syz.0.16/5265: 1 lock held by syz.0.16/5271: #0: ffff0000f1978188 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000f1978188 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 fs/namei.c:1679 1 lock held by syz.1.17/5285: 1 lock held by syz.1.17/5289: #0: ffff0000f19786d0 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000f19786d0 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 fs/namei.c:1679 2 locks held by syz.2.18/5361: 1 lock held by syz.2.18/5364: #0: ffff0000f1a30188 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000f1a30188 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 fs/namei.c:1679 2 locks held by syz.3.19/5367: 1 lock held by syz.3.19/5371: #0: ffff0000f1978c18 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000f1978c18 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 fs/namei.c:1679 2 locks held by syz.4.20/5373: 1 lock held by syz.4.20/5375: #0: ffff0000f1a306d0 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000f1a306d0 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 fs/namei.c:1679 1 lock held by syz.5.21/5610: 1 lock held by syz.5.21/5613: #0: ffff0000f1a30c18 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000f1a30c18 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 fs/namei.c:1679 3 locks held by kworker/u4:8/5634: 2 locks held by syz.6.22/5640: 1 lock held by syz.6.22/5643: #0: ffff0000f1979160 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000f1979160 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 fs/namei.c:1679 1 lock held by syz.8.24/5656: 1 lock held by syz.8.24/5657: #0: ffff0000f19796a8 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000f19796a8 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 fs/namei.c:1679 1 lock held by syz.7.23/5659: 1 lock held by syz.7.23/5660: #0: ffff0000f1979bf0 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000f1979bf0 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 fs/namei.c:1679 2 locks held by syz.9.25/5662: 1 lock held by syz.9.25/5663: #0: ffff0000f1a31160 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline] #0: ffff0000f1a31160 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 fs/namei.c:1679 2 locks held by syz-executor/5681: #0: ffff0001a111d918 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:475 [inline] #0: ffff0001a111d918 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1326 [inline] #0: ffff0001a111d918 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1621 [inline] #0: ffff0001a111d918 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x310/0x1c0c kernel/sched/core.c:6290 #1: ffff8000141a3b98 (cpu_asid_lock){....}-{2:2}, at: check_and_switch_context+0x13c/0x6d8 arch/arm64/mm/context.c:246 4 locks held by udevd/5847: =============================================