INFO: task syz-executor:6525 blocked for more than 163 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:6525 tgid:6525 ppid:6520 task_flags:0x400140 flags:0x00800000 Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T) context_switch kernel/sched/core.c:5357 [inline] __schedule+0x13b0/0x2864 kernel/sched/core.c:6961 __schedule_loop kernel/sched/core.c:7043 [inline] schedule+0xb4/0x230 kernel/sched/core.c:7058 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:7115 rwsem_down_read_slowpath+0x578/0x86c kernel/locking/rwsem.c:1086 __down_read_common kernel/locking/rwsem.c:1261 [inline] __down_read kernel/locking/rwsem.c:1274 [inline] down_read+0x9c/0x2f8 kernel/locking/rwsem.c:1539 inode_lock_shared include/linux/fs.h:885 [inline] lookup_slow+0x4c/0x80 fs/namei.c:1824 walk_component fs/namei.c:2129 [inline] link_path_walk+0x790/0xc98 fs/namei.c:2497 path_openat+0x1cc/0x2c40 fs/namei.c:4042 do_filp_open+0x18c/0x36c fs/namei.c:4073 do_sys_openat2+0x11c/0x1b4 fs/open.c:1435 do_sys_open fs/open.c:1450 [inline] __do_sys_openat fs/open.c:1466 [inline] __se_sys_openat fs/open.c:1461 [inline] __arm64_sys_openat+0x120/0x158 fs/open.c:1461 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x254 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:763 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 Showing all locks held in the system: 1 lock held by kthreadd/2: 3 locks held by kworker/u8:0/12: 3 locks held by kworker/u8:1/14: 4 locks held by kworker/1:0/24: 1 lock held by khungtaskd/32: #0: ffff80008f9c9360 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330 3 locks held by kworker/u8:2/41: 6 locks held by kworker/u8:3/42: 3 locks held by kworker/u8:4/229: 3 locks held by kworker/u8:5/616: 3 locks held by kworker/u8:6/2133: 3 locks held by kworker/R-ipv6_/4197: #0: ffff0000d2d83148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3210 #1: ffff8000a09c7bc0 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3210 #2: ffff800092a75b68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 2 locks held by kworker/R-bat_e/4272: 1 lock held by klogd/6155: 1 lock held by dhcpcd/6220: 1 lock held by crond/6295: 2 locks held by getty/6307: #0: ffff0000d34d20a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80009bbde2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa4 drivers/tty/n_tty.c:2222 1 lock held by syz-executor/6514: 1 lock held by udevd/6516: #0: ffff0000c1496f38 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:885 [inline] #0: ffff0000c1496f38 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: blkdev_read_iter+0x2a0/0x3dc block/fops.c:851 1 lock held by udevd/6518: #0: ffff0000c1497ab8 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:885 [inline] #0: ffff0000c1497ab8 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: blkdev_read_iter+0x2a0/0x3dc block/fops.c:851 1 lock held by syz-executor/6525: #0: ffff0000ddd86480 (&type->i_mutex_dir_key#6){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:885 [inline] #0: ffff0000ddd86480 (&type->i_mutex_dir_key#6){++++}-{4:4}, at: lookup_slow+0x4c/0x80 fs/namei.c:1824 4 locks held by syz-executor/6531: 4 locks held by syz-executor/6533: 4 locks held by syz-executor/6534: 2 locks held by kworker/0:3/6536: 1 lock held by udevd/6540: 3 locks held by kworker/u8:7/6635: 9 locks held by syz.3.4/6637: #0: ffff0000d56dc428 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:557 #1: ffff0000f8bf89c0 (&type->i_mutex_dir_key#8/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:915 [inline] #1: ffff0000f8bf89c0 (&type->i_mutex_dir_key#8/1){+.+.}-{4:4}, at: filename_create+0x1ac/0x32c fs/namei.c:4139 #2: ffff0000f8bf8660 (&ocfs2_file_ip_alloc_sem_key){++++}-{4:4}, at: ocfs2_expand_inline_dir fs/ocfs2/dir.c:2826 [inline] #2: ffff0000f8bf8660 (&ocfs2_file_ip_alloc_sem_key){++++}-{4:4}, at: ocfs2_extend_dir+0x484/0x3964 fs/ocfs2/dir.c:3207 #3: ffff0000f8bfed80 (&ocfs2_sysfile_lock_key[EXTENT_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:870 [inline] #3: ffff0000f8bfed80 (&ocfs2_sysfile_lock_key[EXTENT_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x12c/0x3b9c fs/ocfs2/suballoc.c:788 #4: ffff0000f8bfd100 (&ocfs2_sysfile_lock_key[GLOBAL_BITMAP_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:870 [inline] #4: ffff0000f8bfd100 (&ocfs2_sysfile_lock_key[GLOBAL_BITMAP_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x12c/0x3b9c fs/ocfs2/suballoc.c:788 #5: ffff0000d56dc618 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_block_group_alloc fs/ocfs2/suballoc.c:685 [inline] #5: ffff0000d56dc618 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_reserve_suballoc_bits+0x630/0x3b9c fs/ocfs2/suballoc.c:834 #6: ffff0000dc4ab0e8 (&journal->j_trans_barrier){.+.+}-{4:4}, at: ocfs2_start_trans+0x35c/0x6b0 fs/ocfs2/journal.c:372 #7: ffff0000d4cc0950 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xe4c/0x10dc fs/jbd2/transaction.c:442 #8: ffff0000f8bfcf28 (&oi->ip_io_mutex){+.+.}-{4:4}, at: ocfs2_inode_cache_io_lock+0x24/0x34 fs/ocfs2/inode.c:1732 4 locks held by kworker/0:5/6638: #0: ffff0000c0028d48 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3210 #1: ffff8000a3f27be0 (reg_work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3210 #2: ffff800092a75b68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 #3: ffff0000c1f18768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: class_wiphy_constructor include/net/cfg80211.h:6212 [inline] #3: ffff0000c1f18768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: reg_process_self_managed_hints+0xc8/0x1dc net/wireless/reg.c:3209 3 locks held by kworker/u8:8/6650: 3 locks held by kworker/u8:9/6654: 3 locks held by kworker/u8:10/6656: #0: ffff0000c0032148 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3210 #1: ffff8000a1157be0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3210 #2: ffff800092a75b68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 3 locks held by kworker/u8:11/6657: #0: ffff0000c0032148 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3210 #1: ffff8000a3fc7be0 ((crda_timeout).work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3210 #2: ffff800092a75b68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 2 locks held by kworker/1:2H/6661: #0: ffff0000c1f41548 ((wq_completion)kblockd){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3210 #1: ffff8000a1137be0 ((work_completion)(&q->timeout_work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3210 =============================================