INFO: task syz.4.66:6851 blocked for more than 143 seconds. Not tainted 6.10.0-rc7-syzkaller-gc912bf709078 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.4.66 state:D stack:0 pid:6851 tgid:6848 ppid:6380 flags:0x00000009 Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5408 [inline] __schedule+0x14ac/0x24d8 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xbc/0x238 kernel/sched/core.c:6837 io_schedule+0x8c/0x124 kernel/sched/core.c:9043 folio_wait_bit_common+0x65c/0xb90 mm/filemap.c:1307 __folio_lock+0x2c/0x3c mm/filemap.c:1645 lock_page include/linux/pagemap.h:1081 [inline] release_metapage+0x168/0xc4c fs/jfs/jfs_metapage.c:764 discard_metapage fs/jfs/jfs_metapage.h:88 [inline] __get_metapage+0xb10/0x1054 fs/jfs/jfs_metapage.c:644 jfs_readdir+0x1ed4/0x37bc fs/jfs/jfs_dtree.c:3018 wrap_directory_iterator+0xa8/0xf4 fs/readdir.c:67 shared_jfs_readdir+0x30/0x40 fs/jfs/namei.c:1540 iterate_dir+0x408/0x648 fs/readdir.c:110 __do_sys_getdents64 fs/readdir.c:409 [inline] __se_sys_getdents64 fs/readdir.c:394 [inline] __arm64_sys_getdents64+0x1c0/0x404 fs/readdir.c:394 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:131 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:150 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 Showing all locks held in the system: 1 lock held by khungtaskd/31: #0: ffff80008f4b7be0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:328 4 locks held by kworker/u8:2/42: 2 locks held by kworker/u8:9/2130: 2 locks held by getty/6139: #0: ffff0000ccb9d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff8000980ee2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211 3 locks held by kworker/u9:7/6391: #0: ffff0000f2fb0948 ((wq_completion)hci3){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3222 #1: ffff8000994d7c20 ((work_completion)(&hdev->power_on)){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3222 #2: ffff0000f462cd88 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_open net/bluetooth/hci_core.c:439 [inline] #2: ffff0000f462cd88 (&hdev->req_lock){+.+.}-{3:3}, at: hci_power_on+0x148/0x640 net/bluetooth/hci_core.c:976 2 locks held by syz.4.66/6851: #0: ffff0000c897bc48 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x218/0x2a4 fs/file.c:1191 #1: ffff0000df98f480 (&type->i_mutex_dir_key#14){++++}-{3:3}, at: wrap_directory_iterator+0x64/0xf4 fs/readdir.c:56 1 lock held by udevd/7305: #0: ffff0000c1882948 (&root->kernfs_rwsem){++++}-{3:3}, at: raw_spin_rq_lock_nested kernel/sched/core.c:559 [inline] #0: ffff0000c1882948 (&root->kernfs_rwsem){++++}-{3:3}, at: raw_spin_rq_lock kernel/sched/sched.h:1406 [inline] #0: ffff0000c1882948 (&root->kernfs_rwsem){++++}-{3:3}, at: rq_lock kernel/sched/sched.h:1702 [inline] #0: ffff0000c1882948 (&root->kernfs_rwsem){++++}-{3:3}, at: __schedule+0x2e0/0x24d8 kernel/sched/core.c:6653 1 lock held by syz-executor/7958: #0: ffff0001b3d35018 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:559 [inline] #0: ffff0001b3d35018 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1406 [inline] #0: ffff0001b3d35018 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1702 [inline] #0: ffff0001b3d35018 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x2e0/0x24d8 kernel/sched/core.c:6653 2 locks held by syz.3.481/9453: #0: ffff0000ed2300a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_write+0x3c/0x4c drivers/tty/tty_ldsem.c:366 #1: ffff0000ed2330a0 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: ldsem_down_write_nested+0x44/0x58 drivers/tty/tty_ldsem.c:427 3 locks held by syz.2.484/9461: #0: ffff0000dfa5e810 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline] #0: ffff0000dfa5e810 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release net/socket.c:658 [inline] #0: ffff0000dfa5e810 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: sock_close+0x80/0x1e8 net/socket.c:1421 #1: ffff8000921a3250 ((netlink_chain).rwsem){++++}-{3:3}, at: blocking_notifier_call_chain+0x58/0xa0 kernel/notifier.c:387 #2: ffff0000d67f1cb8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nft_rcv_nl_event+0x10c/0x5dc net/netfilter/nf_tables_api.c:11482 =============================================