INFO: task syz.3.84:6948 blocked for more than 143 seconds.
      Not tainted 6.13.0-rc3-syzkaller-g573067a5a685 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.84        state:D stack:0     pid:6948  tgid:6935  ppid:6425   flags:0x00000001
Call trace:
 __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T)
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x1744/0x27f0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6848
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6905
 rwsem_down_write_slowpath+0xd10/0x14c8 kernel/locking/rwsem.c:1176
 __down_write_common kernel/locking/rwsem.c:1304 [inline]
 __down_write kernel/locking/rwsem.c:1313 [inline]
 down_write_nested+0xc0/0xcc kernel/locking/rwsem.c:1694
 inode_lock_nested include/linux/fs.h:853 [inline]
 filename_create+0x204/0x468 fs/namei.c:4080
 do_mkdirat+0xac/0x574 fs/namei.c:4326
 __do_sys_mkdirat fs/namei.c:4349 [inline]
 __se_sys_mkdirat fs/namei.c:4347 [inline]
 __arm64_sys_mkdirat+0x8c/0xa4 fs/namei.c:4347
 __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+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
INFO: task syz.3.84:6949 blocked for more than 143 seconds.
      Not tainted 6.13.0-rc3-syzkaller-g573067a5a685 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.84        state:D stack:0     pid:6949  tgid:6935  ppid:6425   flags:0x00000001
Call trace:
 __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T)
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x1744/0x27f0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6848
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6905
 rwsem_down_write_slowpath+0xd10/0x14c8 kernel/locking/rwsem.c:1176
 __down_write_common kernel/locking/rwsem.c:1304 [inline]
 __down_write kernel/locking/rwsem.c:1313 [inline]
 down_write_nested+0xc0/0xcc kernel/locking/rwsem.c:1694
 inode_lock_nested include/linux/fs.h:853 [inline]
 filename_create+0x204/0x468 fs/namei.c:4080
 do_mkdirat+0xac/0x574 fs/namei.c:4326
 __do_sys_mkdirat fs/namei.c:4349 [inline]
 __se_sys_mkdirat fs/namei.c:4347 [inline]
 __arm64_sys_mkdirat+0x8c/0xa4 fs/namei.c:4347
 __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+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
INFO: task syz.3.84:6952 blocked for more than 143 seconds.
      Not tainted 6.13.0-rc3-syzkaller-g573067a5a685 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.84        state:D stack:0     pid:6952  tgid:6935  ppid:6425   flags:0x00000001
Call trace:
 __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T)
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x1744/0x27f0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6848
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6905
 rwsem_down_write_slowpath+0xd10/0x14c8 kernel/locking/rwsem.c:1176
 __down_write_common kernel/locking/rwsem.c:1304 [inline]
 __down_write kernel/locking/rwsem.c:1313 [inline]
 down_write_nested+0xc0/0xcc kernel/locking/rwsem.c:1694
 inode_lock_nested include/linux/fs.h:853 [inline]
 filename_create+0x204/0x468 fs/namei.c:4080
 do_mkdirat+0xac/0x574 fs/namei.c:4326
 __do_sys_mkdirat fs/namei.c:4349 [inline]
 __se_sys_mkdirat fs/namei.c:4347 [inline]
 __arm64_sys_mkdirat+0x8c/0xa4 fs/namei.c:4347
 __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+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
INFO: task syz.3.84:6953 blocked for more than 143 seconds.
      Not tainted 6.13.0-rc3-syzkaller-g573067a5a685 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.84        state:D stack:0     pid:6953  tgid:6935  ppid:6425   flags:0x00000001
Call trace:
 __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T)
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x1744/0x27f0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6848
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6905
 rwsem_down_write_slowpath+0xd10/0x14c8 kernel/locking/rwsem.c:1176
 __down_write_common kernel/locking/rwsem.c:1304 [inline]
 __down_write kernel/locking/rwsem.c:1313 [inline]
 down_write+0xb4/0xc0 kernel/locking/rwsem.c:1578
 inode_lock include/linux/fs.h:818 [inline]
 open_last_lookups fs/namei.c:3745 [inline]
 path_openat+0x684/0x2b14 fs/namei.c:3984
 do_filp_open+0x1e8/0x404 fs/namei.c:4014
 do_sys_openat2+0x124/0x1b8 fs/open.c:1402
 do_sys_open fs/open.c:1417 [inline]
 __do_sys_openat fs/open.c:1433 [inline]
 __se_sys_openat fs/open.c:1428 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1428
 __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+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
INFO: task syz.3.84:6956 blocked for more than 143 seconds.
      Not tainted 6.13.0-rc3-syzkaller-g573067a5a685 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.84        state:D stack:0     pid:6956  tgid:6935  ppid:6425   flags:0x00000001
Call trace:
 __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T)
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x1744/0x27f0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6848
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6905
 rwsem_down_write_slowpath+0xd10/0x14c8 kernel/locking/rwsem.c:1176
 __down_write_common kernel/locking/rwsem.c:1304 [inline]
 __down_write kernel/locking/rwsem.c:1313 [inline]
 down_write+0xb4/0xc0 kernel/locking/rwsem.c:1578
 inode_lock include/linux/fs.h:818 [inline]
 open_last_lookups fs/namei.c:3745 [inline]
 path_openat+0x684/0x2b14 fs/namei.c:3984
 do_filp_open+0x1e8/0x404 fs/namei.c:4014
 do_sys_openat2+0x124/0x1b8 fs/open.c:1402
 do_sys_open fs/open.c:1417 [inline]
 __do_sys_openat fs/open.c:1433 [inline]
 __se_sys_openat fs/open.c:1428 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1428
 __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+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600

Showing all locks held in the system:
1 lock held by khungtaskd/31:
 #0: ffff80008fb82560 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:336
2 locks held by getty/6175:
 #0: ffff0000d24870a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009ba2b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211
2 locks held by syz.3.84/6942:
2 locks held by syz.3.84/6948:
 #0: ffff0000ce19c420 (sb_writers#21){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:515
 #1: ffff0000f4d7c180 (&type->i_mutex_dir_key#15/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:853 [inline]
 #1: ffff0000f4d7c180 (&type->i_mutex_dir_key#15/1){+.+.}-{4:4}, at: filename_create+0x204/0x468 fs/namei.c:4080
2 locks held by syz.3.84/6949:
 #0: ffff0000ce19c420 (sb_writers#21){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:515
 #1: ffff0000f4d7c180 (&type->i_mutex_dir_key#15/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:853 [inline]
 #1: ffff0000f4d7c180 (&type->i_mutex_dir_key#15/1){+.+.}-{4:4}, at: filename_create+0x204/0x468 fs/namei.c:4080
2 locks held by syz.3.84/6952:
 #0: ffff0000ce19c420 (sb_writers#21){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:515
 #1: ffff0000f4d7c180 (&type->i_mutex_dir_key#15/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:853 [inline]
 #1: ffff0000f4d7c180 (&type->i_mutex_dir_key#15/1){+.+.}-{4:4}, at: filename_create+0x204/0x468 fs/namei.c:4080
2 locks held by syz.3.84/6953:
 #0: ffff0000ce19c420 (sb_writers#21){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:515
 #1: ffff0000f4d7c180 (&type->i_mutex_dir_key#16){++++}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
 #1: ffff0000f4d7c180 (&type->i_mutex_dir_key#16){++++}-{4:4}, at: open_last_lookups fs/namei.c:3745 [inline]
 #1: ffff0000f4d7c180 (&type->i_mutex_dir_key#16){++++}-{4:4}, at: path_openat+0x684/0x2b14 fs/namei.c:3984
2 locks held by syz.3.84/6956:
 #0: ffff0000ce19c420 (sb_writers#21){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:515
 #1: ffff0000f4d7c180 (&type->i_mutex_dir_key#16){++++}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
 #1: ffff0000f4d7c180 (&type->i_mutex_dir_key#16){++++}-{4:4}, at: open_last_lookups fs/namei.c:3745 [inline]
 #1: ffff0000f4d7c180 (&type->i_mutex_dir_key#16){++++}-{4:4}, at: path_openat+0x684/0x2b14 fs/namei.c:3984

=============================================