INFO: task syz-executor.4:7623 blocked for more than 144 seconds. Not tainted 6.3.0-rc1-syzkaller-gfe15c26ee26e #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:0 pid:7623 ppid:5993 flags:0x00000001 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5304 [inline] __schedule+0x1130/0x1fd0 kernel/sched/core.c:6622 schedule+0xc4/0x170 kernel/sched/core.c:6698 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6757 rwsem_down_write_slowpath+0xcb8/0x146c kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write_nested+0xcc/0xd8 kernel/locking/rwsem.c:1690 inode_lock_nested include/linux/fs.h:793 [inline] udf_rename+0x9a0/0xdb0 fs/udf/namei.c:800 vfs_rename+0x908/0xcd4 fs/namei.c:4772 do_renameat2+0x980/0x1040 fs/namei.c:4923 __do_sys_renameat2 fs/namei.c:4956 [inline] __se_sys_renameat2 fs/namei.c:4953 [inline] __arm64_sys_renameat2+0xe0/0xfc fs/namei.c:4953 __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:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 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+0x190/0x194 arch/arm64/kernel/entry.S:591 INFO: task syz-executor.4:7646 blocked for more than 145 seconds. Not tainted 6.3.0-rc1-syzkaller-gfe15c26ee26e #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:0 pid:7646 ppid:5993 flags:0x00000009 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5304 [inline] __schedule+0x1130/0x1fd0 kernel/sched/core.c:6622 schedule+0xc4/0x170 kernel/sched/core.c:6698 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6757 rwsem_down_write_slowpath+0xcb8/0x146c kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write_nested+0xcc/0xd8 kernel/locking/rwsem.c:1690 lock_rename+0x174/0x18c ovl_workdir_ok fs/overlayfs/super.c:981 [inline] ovl_get_workdir+0x1e8/0x13d4 fs/overlayfs/super.c:1424 ovl_fill_super+0x15b4/0x2240 fs/overlayfs/super.c:2000 mount_nodev+0x68/0x104 fs/super.c:1417 ovl_mount+0x3c/0x50 fs/overlayfs/super.c:2091 legacy_get_tree+0xd4/0x16c fs/fs_context.c:610 vfs_get_tree+0x90/0x274 fs/super.c:1501 do_new_mount+0x25c/0x8c8 fs/namespace.c:3042 path_mount+0x590/0xe20 fs/namespace.c:3372 do_mount fs/namespace.c:3385 [inline] __do_sys_mount fs/namespace.c:3594 [inline] __se_sys_mount fs/namespace.c:3571 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3571 __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:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 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+0x190/0x194 arch/arm64/kernel/entry.S:591 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffff800015eb7c90 (rcu_tasks.tasks_gp_mutex ){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:510 1 lock held by rcu_tasks_trace/13: #0: ffff800015eb8490 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:510 1 lock held by khungtaskd/28: #0: ffff800015eb7ac0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:326 2 locks held by kworker/u4:2/39: 2 locks held by getty/5630: #0: ffff0000d7e73098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80001aa102f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1210 drivers/tty/n_tty.c:2177 3 locks held by kworker/1:14/6730: #0: ffff0000c0020d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x664/0x16f4 kernel/workqueue.c:2363 #1: ffff8000216d7c20 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x6a8/0x16f4 kernel/workqueue.c:2365 #2: ffff800018397088 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:75 4 locks held by syz-executor.4/7623: #0: ffff0000d9e40460 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:394 #1: ffff00012ef795e0 (&type->i_mutex_dir_key#10/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline] #1: ffff00012ef795e0 (&type->i_mutex_dir_key#10/1){+.+.}-{3:3}, at: lock_rename+0xf0/0x18c fs/namei.c:2991 #2: ffff00012ef79c48 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff00012ef79c48 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: vfs_rename+0x560/0xcd4 fs/namei.c:4744 #3: ffff00012ef7a2b0 (&type->i_mutex_dir_key#19/4){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline] #3: ffff00012ef7a2b0 (&type->i_mutex_dir_key#19/4){+.+.}-{3:3}, at: udf_rename+0x9a0/0xdb0 fs/udf/namei.c:800 4 locks held by syz-executor.4/7646: #0: ffff0001273960e0 (&type->s_umount_key#78/1){+.+.}-{3:3}, at: alloc_super+0x1b4/0x824 fs/super.c:228 #1: ffff0000d9e40748 (&type->s_vfs_rename_key#2){+.+.}-{3:3}, at: lock_rename+0x54/0x18c fs/namei.c:2995 #2: ffff00012ef7a2b0 (&type->i_mutex_dir_key#10/1){+.+.}-{3:3}, at: lock_rename+0x130/0x18c #3: ffff00012ef79c48 (&type->i_mutex_dir_key#19/5){+.+.}-{3:3}, at: lock_rename+0x174/0x18c 1 lock held by syz-executor.4/9122: #0: ffff800018397088 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:75 [inline] #0: ffff800018397088 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x700/0xdb8 net/core/rtnetlink.c:6171 1 lock held by syz-executor.4/9123: #0: ffff800018397088 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:75 [inline] #0: ffff800018397088 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x700/0xdb8 net/core/rtnetlink.c:6171 2 locks held by syz-executor.5/9128: =============================================