INFO: task syz-executor.1:4294 blocked for more than 143 seconds. Not tainted 5.15.156-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack: 0 pid: 4294 ppid: 3978 flags:0x00000005 Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5030 [inline] __schedule+0xf10/0x1e48 kernel/sched/core.c:6376 schedule+0x11c/0x1c8 kernel/sched/core.c:6459 d_wait_lookup+0x1a0/0x27c fs/dcache.c:2563 d_alloc_parallel+0x9e0/0x11bc fs/dcache.c:2645 __lookup_slow+0x108/0x388 fs/namei.c:1648 lookup_slow+0x60/0x84 fs/namei.c:1680 walk_component+0x394/0x4cc fs/namei.c:1976 lookup_last fs/namei.c:2431 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2455 filename_lookup+0x1c4/0x4c8 fs/namei.c:2484 user_path_at_empty+0x5c/0x1a4 fs/namei.c:2883 user_path_at include/linux/namei.h:57 [inline] path_listxattr fs/xattr.c:804 [inline] __do_sys_listxattr fs/xattr.c:819 [inline] __se_sys_listxattr fs/xattr.c:816 [inline] __arm64_sys_listxattr+0xf4/0x21c fs/xattr.c:816 __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:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 INFO: task syz-executor.1:4295 blocked for more than 143 seconds. Not tainted 5.15.156-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack: 0 pid: 4295 ppid: 3978 flags:0x00000005 Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5030 [inline] __schedule+0xf10/0x1e48 kernel/sched/core.c:6376 schedule+0x11c/0x1c8 kernel/sched/core.c:6459 d_wait_lookup+0x1a0/0x27c fs/dcache.c:2563 d_alloc_parallel+0x9e0/0x11bc fs/dcache.c:2645 __lookup_slow+0x108/0x388 fs/namei.c:1648 lookup_slow+0x60/0x84 fs/namei.c:1680 walk_component+0x394/0x4cc fs/namei.c:1976 link_path_walk+0x5a0/0xc38 path_parentat fs/namei.c:2502 [inline] __filename_parentat+0x1d4/0x5b8 fs/namei.c:2526 filename_parentat fs/namei.c:2544 [inline] filename_create+0xf0/0x468 fs/namei.c:3816 do_mkdirat+0xac/0x610 fs/namei.c:4080 __do_sys_mkdirat fs/namei.c:4105 [inline] __se_sys_mkdirat fs/namei.c:4103 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4103 __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:608 el0t_64_sync_handler+0x84/0xe4 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: 2 locks held by kworker/0:0/7: 4 locks held by kworker/u4:0/9: 1 lock held by khungtaskd/27: #0: ffff800014b114e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:311 1 lock held by udevd/3582: 2 locks held by getty/3727: #0: ffff0000d29e5098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340 #1: ffff80001a31e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1204 drivers/tty/n_tty.c:2158 3 locks held by kworker/u5:4/3989: #0: ffff0000db818938 ((wq_completion)hci8){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283 #1: ffff80001cf27c00 ((work_completion)(&hdev->error_reset)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285 #2: ffff000104ef4ff0 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_open+0xb8/0x104c net/bluetooth/hci_core.c:1446 1 lock held by syz-executor.1/4278: 1 lock held by syz-executor.1/4294: #0: ffff0000dc280188 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:799 [inline] #0: ffff0000dc280188 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1679 1 lock held by syz-executor.1/4295: #0: ffff0000dc280188 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:799 [inline] #0: ffff0000dc280188 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1679 1 lock held by syz-executor.4/4553: 1 lock held by syz-executor.4/4575: #0: ffff0000dc2806d0 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:799 [inline] #0: ffff0000dc2806d0 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1679 1 lock held by syz-executor.4/4578: #0: ffff0000dc2806d0 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:799 [inline] #0: ffff0000dc2806d0 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1679 1 lock held by syz-executor.2/4695: 1 lock held by syz-executor.2/4710: #0: ffff0000dc280c18 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:799 [inline] #0: ffff0000dc280c18 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1679 1 lock held by syz-executor.2/4716: #0: ffff0000dc280c18 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:799 [inline] #0: ffff0000dc280c18 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1679 1 lock held by syz-executor.0/4829: 1 lock held by syz-executor.0/4859: #0: ffff0000dc281160 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:799 [inline] #0: ffff0000dc281160 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1679 1 lock held by syz-executor.0/4863: #0: ffff0000dc281160 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:799 [inline] #0: ffff0000dc281160 (&type->i_mutex_dir_key#11){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 fs/namei.c:1679 2 locks held by syz-executor.2/5868: =============================================