INFO: task udevd:3944 blocked for more than 143 seconds. Not tainted 6.2.0-rc7-syzkaller-17907-g2d3827b3f393 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:0 pid:3944 ppid:1 flags:0x00000008 Call trace: __switch_to+0x210/0x424 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5293 [inline] __schedule+0x6a4/0xb34 kernel/sched/core.c:6606 schedule+0x64/0xa4 kernel/sched/core.c:6682 rwsem_down_read_slowpath+0x220/0x43c kernel/locking/rwsem.c:1095 __down_read_common+0x48/0x154 kernel/locking/rwsem.c:1260 __down_read kernel/locking/rwsem.c:1269 [inline] down_read+0x68/0x78 kernel/locking/rwsem.c:1511 kernfs_iop_permission+0x54/0x118 fs/kernfs/inode.c:288 do_inode_permission fs/namei.c:458 [inline] inode_permission+0x128/0x244 fs/namei.c:525 may_lookup fs/namei.c:1715 [inline] link_path_walk+0x138/0x628 fs/namei.c:2262 path_lookupat+0x54/0x208 fs/namei.c:2473 filename_lookup+0xf0/0x25c fs/namei.c:2503 user_path_at_empty+0x5c/0x110 fs/namei.c:2876 do_readlinkat+0x74/0x288 fs/stat.c:471 __do_sys_readlinkat fs/stat.c:498 [inline] __se_sys_readlinkat fs/stat.c:495 [inline] __arm64_sys_readlinkat+0x28/0x3c fs/stat.c:495 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52 el0_svc_common+0xbc/0x180 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x110 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x14c 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.5:4452 blocked for more than 143 seconds. Not tainted 6.2.0-rc7-syzkaller-17907-g2d3827b3f393 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:0 pid:4452 ppid:1 flags:0x00000001 Call trace: __switch_to+0x210/0x424 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5293 [inline] __schedule+0x6a4/0xb34 kernel/sched/core.c:6606 schedule+0x64/0xa4 kernel/sched/core.c:6682 rwsem_down_read_slowpath+0x220/0x43c kernel/locking/rwsem.c:1095 __down_read_common+0x48/0x154 kernel/locking/rwsem.c:1260 __down_read kernel/locking/rwsem.c:1269 [inline] down_read+0x68/0x78 kernel/locking/rwsem.c:1511 kernfs_iop_permission+0x54/0x118 fs/kernfs/inode.c:288 do_inode_permission fs/namei.c:458 [inline] inode_permission+0x128/0x244 fs/namei.c:525 may_lookup fs/namei.c:1715 [inline] link_path_walk+0x138/0x628 fs/namei.c:2262 path_openat+0xb8/0x1330 fs/namei.c:3710 do_filp_open+0xd0/0x1a8 fs/namei.c:3741 do_sys_openat2+0xb8/0x22c fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __arm64_sys_openat+0xb0/0xe0 fs/open.c:1337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52 el0_svc_common+0xbc/0x180 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x110 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x14c 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.0:4453 blocked for more than 143 seconds. Not tainted 6.2.0-rc7-syzkaller-17907-g2d3827b3f393 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:0 pid:4453 ppid:1 flags:0x00000001 Call trace: __switch_to+0x210/0x424 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5293 [inline] __schedule+0x6a4/0xb34 kernel/sched/core.c:6606 schedule+0x64/0xa4 kernel/sched/core.c:6682 rwsem_down_read_slowpath+0x220/0x43c kernel/locking/rwsem.c:1095 __down_read_common+0x48/0x154 kernel/locking/rwsem.c:1260 __down_read kernel/locking/rwsem.c:1269 [inline] down_read+0x68/0x78 kernel/locking/rwsem.c:1511 kernfs_iop_permission+0x54/0x118 fs/kernfs/inode.c:288 do_inode_permission fs/namei.c:458 [inline] inode_permission+0x128/0x244 fs/namei.c:525 may_lookup fs/namei.c:1715 [inline] link_path_walk+0x138/0x628 fs/namei.c:2262 path_openat+0xb8/0x1330 fs/namei.c:3710 do_filp_open+0xd0/0x1a8 fs/namei.c:3741 do_sys_openat2+0xb8/0x22c fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __arm64_sys_openat+0xb0/0xe0 fs/open.c:1337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52 el0_svc_common+0xbc/0x180 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x110 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x14c 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 udevd:4454 blocked for more than 143 seconds. Not tainted 6.2.0-rc7-syzkaller-17907-g2d3827b3f393 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:0 pid:4454 ppid:3944 flags:0x00000008 Call trace: __switch_to+0x210/0x424 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5293 [inline] __schedule+0x6a4/0xb34 kernel/sched/core.c:6606 schedule+0x64/0xa4 kernel/sched/core.c:6682 rwsem_down_read_slowpath+0x220/0x43c kernel/locking/rwsem.c:1095 __down_read_common+0x48/0x154 kernel/locking/rwsem.c:1260 __down_read kernel/locking/rwsem.c:1269 [inline] down_read+0x68/0x78 kernel/locking/rwsem.c:1511 kernfs_iop_lookup+0x44/0x184 fs/kernfs/dir.c:1171 __lookup_slow+0x14c/0x204 fs/namei.c:1685 lookup_slow+0x44/0x68 fs/namei.c:1702 walk_component+0x178/0x1b0 fs/namei.c:1993 lookup_last fs/namei.c:2450 [inline] path_lookupat+0xc4/0x208 fs/namei.c:2474 filename_lookup+0xf0/0x25c fs/namei.c:2503 user_path_at_empty+0x5c/0x110 fs/namei.c:2876 user_path_at include/linux/namei.h:57 [inline] do_faccessat+0x198/0x440 fs/open.c:446 __do_sys_faccessat2 fs/open.c:500 [inline] __se_sys_faccessat2 fs/open.c:497 [inline] __arm64_sys_faccessat2+0x2c/0x3c fs/open.c:497 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52 el0_svc_common+0xbc/0x180 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x110 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x14c 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.1:4457 blocked for more than 143 seconds. Not tainted 6.2.0-rc7-syzkaller-17907-g2d3827b3f393 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:0 pid:4457 ppid:1 flags:0x00000001 Call trace: __switch_to+0x210/0x424 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5293 [inline] __schedule+0x6a4/0xb34 kernel/sched/core.c:6606 schedule+0x64/0xa4 kernel/sched/core.c:6682 rwsem_down_read_slowpath+0x220/0x43c kernel/locking/rwsem.c:1095 __down_read_common+0x48/0x154 kernel/locking/rwsem.c:1260 __down_read kernel/locking/rwsem.c:1269 [inline] down_read+0x68/0x78 kernel/locking/rwsem.c:1511 kernfs_iop_permission+0x54/0x118 fs/kernfs/inode.c:288 do_inode_permission fs/namei.c:458 [inline] inode_permission+0x128/0x244 fs/namei.c:525 may_lookup fs/namei.c:1715 [inline] link_path_walk+0x138/0x628 fs/namei.c:2262 path_openat+0xb8/0x1330 fs/namei.c:3710 do_filp_open+0xd0/0x1a8 fs/namei.c:3741 do_sys_openat2+0xb8/0x22c fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __arm64_sys_openat+0xb0/0xe0 fs/open.c:1337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52 el0_svc_common+0xbc/0x180 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x110 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x14c 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.4:4458 blocked for more than 143 seconds. Not tainted 6.2.0-rc7-syzkaller-17907-g2d3827b3f393 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:0 pid:4458 ppid:1 flags:0x00000001 Call trace: __switch_to+0x210/0x424 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5293 [inline] __schedule+0x6a4/0xb34 kernel/sched/core.c:6606 schedule+0x64/0xa4 kernel/sched/core.c:6682 rwsem_down_read_slowpath+0x220/0x43c kernel/locking/rwsem.c:1095 __down_read_common+0x48/0x154 kernel/locking/rwsem.c:1260 __down_read kernel/locking/rwsem.c:1269 [inline] down_read+0x68/0x78 kernel/locking/rwsem.c:1511 kernfs_iop_permission+0x54/0x118 fs/kernfs/inode.c:288 do_inode_permission fs/namei.c:458 [inline] inode_permission+0x128/0x244 fs/namei.c:525 may_lookup fs/namei.c:1715 [inline] link_path_walk+0x138/0x628 fs/namei.c:2262 path_openat+0xb8/0x1330 fs/namei.c:3710 do_filp_open+0xd0/0x1a8 fs/namei.c:3741 do_sys_openat2+0xb8/0x22c fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __arm64_sys_openat+0xb0/0xe0 fs/open.c:1337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52 el0_svc_common+0xbc/0x180 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x110 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x14c 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.2:4462 blocked for more than 143 seconds. Not tainted 6.2.0-rc7-syzkaller-17907-g2d3827b3f393 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:0 pid:4462 ppid:1 flags:0x00000001 Call trace: __switch_to+0x210/0x424 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5293 [inline] __schedule+0x6a4/0xb34 kernel/sched/core.c:6606 schedule+0x64/0xa4 kernel/sched/core.c:6682 rwsem_down_read_slowpath+0x220/0x43c kernel/locking/rwsem.c:1095 __down_read_common+0x48/0x154 kernel/locking/rwsem.c:1260 __down_read kernel/locking/rwsem.c:1269 [inline] down_read+0x68/0x78 kernel/locking/rwsem.c:1511 kernfs_iop_permission+0x54/0x118 fs/kernfs/inode.c:288 do_inode_permission fs/namei.c:458 [inline] inode_permission+0x128/0x244 fs/namei.c:525 may_lookup fs/namei.c:1715 [inline] link_path_walk+0x138/0x628 fs/namei.c:2262 path_openat+0xb8/0x1330 fs/namei.c:3710 do_filp_open+0xd0/0x1a8 fs/namei.c:3741 do_sys_openat2+0xb8/0x22c fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __arm64_sys_openat+0xb0/0xe0 fs/open.c:1337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52 el0_svc_common+0xbc/0x180 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x110 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x14c 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 udevd:4474 blocked for more than 143 seconds. Not tainted 6.2.0-rc7-syzkaller-17907-g2d3827b3f393 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:0 pid:4474 ppid:3944 flags:0x00000008 Call trace: __switch_to+0x210/0x424 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5293 [inline] __schedule+0x6a4/0xb34 kernel/sched/core.c:6606 schedule+0x64/0xa4 kernel/sched/core.c:6682 rwsem_down_write_slowpath+0x454/0x8b0 kernel/locking/rwsem.c:1190 __down_write_common kernel/locking/rwsem.c:1305 [inline] __down_write kernel/locking/rwsem.c:1314 [inline] down_write+0x84/0x88 kernel/locking/rwsem.c:1563 kernfs_remove_by_name_ns+0x44/0x110 fs/kernfs/dir.c:1657 kernfs_remove_by_name include/linux/kernfs.h:618 [inline] remove_files fs/sysfs/group.c:28 [inline] sysfs_remove_group+0x68/0x160 fs/sysfs/group.c:288 loop_sysfs_exit drivers/block/loop.c:753 [inline] __loop_clr_fd+0x114/0x2a0 drivers/block/loop.c:1165 lo_release+0xb4/0xc8 drivers/block/loop.c:1745 blkdev_put+0x298/0x374 blkdev_close+0x24/0x38 block/fops.c:492 __fput+0x198/0x3e4 fs/file_table.c:320 ____fput+0x20/0x30 fs/file_table.c:348 task_work_run+0x100/0x148 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x165c/0x2628 arch/arm64/kernel/signal.c:1302 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x14c arch/arm64/kernel/entry-common.c:638 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 udevd:4484 blocked for more than 143 seconds. Not tainted 6.2.0-rc7-syzkaller-17907-g2d3827b3f393 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:0 pid:4484 ppid:3944 flags:0x00000000 Call trace: __switch_to+0x210/0x424 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5293 [inline] __schedule+0x6a4/0xb34 kernel/sched/core.c:6606 schedule+0x64/0xa4 kernel/sched/core.c:6682 rwsem_down_read_slowpath+0x220/0x43c kernel/locking/rwsem.c:1095 __down_read_common+0x48/0x154 kernel/locking/rwsem.c:1260 __down_read kernel/locking/rwsem.c:1269 [inline] down_read+0x68/0x78 kernel/locking/rwsem.c:1511 kernfs_iop_permission+0x54/0x118 fs/kernfs/inode.c:288 do_inode_permission fs/namei.c:458 [inline] inode_permission+0x128/0x244 fs/namei.c:525 may_lookup fs/namei.c:1715 [inline] link_path_walk+0x138/0x628 fs/namei.c:2262 path_openat+0xb8/0x1330 fs/namei.c:3710 do_filp_open+0xd0/0x1a8 fs/namei.c:3741 do_sys_openat2+0xb8/0x22c fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __arm64_sys_openat+0xb0/0xe0 fs/open.c:1337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52 el0_svc_common+0xbc/0x180 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x110 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x14c 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.3:6617 blocked for more than 143 seconds. Not tainted 6.2.0-rc7-syzkaller-17907-g2d3827b3f393 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:0 pid:6617 ppid:1 flags:0x00000001 Call trace: __switch_to+0x210/0x424 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5293 [inline] __schedule+0x6a4/0xb34 kernel/sched/core.c:6606 schedule+0x64/0xa4 kernel/sched/core.c:6682 rwsem_down_read_slowpath+0x220/0x43c kernel/locking/rwsem.c:1095 __down_read_common+0x48/0x154 kernel/locking/rwsem.c:1260 __down_read kernel/locking/rwsem.c:1269 [inline] down_read+0x68/0x78 kernel/locking/rwsem.c:1511 kernfs_iop_permission+0x54/0x118 fs/kernfs/inode.c:288 do_inode_permission fs/namei.c:458 [inline] inode_permission+0x128/0x244 fs/namei.c:525 may_lookup fs/namei.c:1715 [inline] link_path_walk+0x138/0x628 fs/namei.c:2262 path_openat+0xb8/0x1330 fs/namei.c:3710 do_filp_open+0xd0/0x1a8 fs/namei.c:3741 do_sys_openat2+0xb8/0x22c fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __arm64_sys_openat+0xb0/0xe0 fs/open.c:1337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52 el0_svc_common+0xbc/0x180 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x110 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x14c 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/11: #0: ffff80000d4955c8 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x448 kernel/rcu/tasks.h:507 1 lock held by rcu_tasks_trace/12: #0: ffff80000d495c18 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x448 kernel/rcu/tasks.h:507 1 lock held by khungtaskd/27: #0: ffff80000d4954a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:324 1 lock held by udevd/3944: #0: ffff0000c0013b48 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_iop_permission+0x54/0x118 fs/kernfs/inode.c:288 2 locks held by getty/4095: #0: ffff0000c7d63098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x28/0x58 drivers/tty/tty_ldisc.c:244 #1: ffff80000f6a62f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x28c/0xbc4 drivers/tty/n_tty.c:2177 1 lock held by syz-executor.5/4452: #0: ffff0000c0013b48 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_iop_permission+0x54/0x118 fs/kernfs/inode.c:288 1 lock held by syz-executor.0/4453: #0: ffff0000c0013b48 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_iop_permission+0x54/0x118 fs/kernfs/inode.c:288 2 locks held by udevd/4454: #0: ffff0000cafae1c8 (&type->i_mutex_dir_key#4){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:766 [inline] #0: ffff0000cafae1c8 (&type->i_mutex_dir_key#4){++++}-{3:3}, at: lookup_slow+0x34/0x68 fs/namei.c:1701 #1: ffff0000c0013b48 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_iop_lookup+0x44/0x184 fs/kernfs/dir.c:1171 1 lock held by syz-executor.1/4457: #0: ffff0000c0013b48 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_iop_permission+0x54/0x118 fs/kernfs/inode.c:288 1 lock held by syz-executor.4/4458: #0: ffff0000c0013b48 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_iop_permission+0x54/0x118 fs/kernfs/inode.c:288 1 lock held by syz-executor.2/4462: #0: ffff0000c0013b48 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_iop_permission+0x54/0x118 fs/kernfs/inode.c:288 2 locks held by udevd/4474: #0: ffff0000c4b674c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0x78/0x374 block/bdev.c:911 #1: ffff0000c0013b48 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_remove_by_name_ns+0x44/0x110 fs/kernfs/dir.c:1657 1 lock held by udevd/4484: #0: ffff0000c0013b48 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_iop_permission+0x54/0x118 fs/kernfs/inode.c:288 1 lock held by syz-executor.3/6617: #0: ffff0000c0013b48 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_iop_permission+0x54/0x118 fs/kernfs/inode.c:288 2 locks held by syz-executor.5/10273: 2 locks held by syz-executor.4/10277: #0: ffff0000cc7d20e0 (&type->s_umount_key#25/1){+.+.}-{3:3}, at: alloc_super+0xf8/0x430 fs/super.c:228 #1: ffff0000c0013b48 (&root->kernfs_rwsem){++++}-{3:3}, at: kernfs_add_one+0x44/0x3e4 fs/kernfs/dir.c:754 =============================================