INFO: task syz-executor.1:6700 blocked for more than 430 seconds.
      Not tainted 5.15.0-rc1-syzkaller-00001-g64a19591a293 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D stack:    0 pid: 6700 ppid:  2019 flags:0x00000004
Call Trace:
[<ffffffff82bdaf8a>] context_switch kernel/sched/core.c:4940 [inline]
[<ffffffff82bdaf8a>] __schedule+0x506/0x1048 kernel/sched/core.c:6287
[<ffffffff82bdbb32>] schedule+0x66/0x168 kernel/sched/core.c:6366
[<ffffffff80763802>] request_wait_answer+0x2da/0x4f4 fs/fuse/dev.c:411
[<ffffffff80768d56>] __fuse_request_send fs/fuse/dev.c:430 [inline]
[<ffffffff80768d56>] fuse_simple_request+0x3fa/0x706 fs/fuse/dev.c:515
[<ffffffff8076cf96>] fuse_lookup_name+0x16c/0x32a fs/fuse/dir.c:383
[<ffffffff8076d1ee>] fuse_lookup+0x9a/0x276 fs/fuse/dir.c:424
[<ffffffff8044bade>] __lookup_slow+0x148/0x282 fs/namei.c:1657
[<ffffffff80452096>] lookup_slow fs/namei.c:1674 [inline]
[<ffffffff80452096>] walk_component+0x266/0x34c fs/namei.c:1970
[<ffffffff804525a6>] link_path_walk.part.0+0x42a/0x622 fs/namei.c:2297
[<ffffffff80453a38>] link_path_walk fs/namei.c:2422 [inline]
[<ffffffff80453a38>] path_lookupat+0x7e/0x410 fs/namei.c:2448
[<ffffffff804581b0>] filename_lookup+0xce/0x29c fs/namei.c:2478
[<ffffffff804583b2>] kern_path+0x34/0x4c fs/namei.c:2568
[<ffffffff80811314>] tomoyo_mount_acl+0x1b0/0x4da security/tomoyo/mount.c:136
[<ffffffff80811740>] tomoyo_mount_permission+0x102/0x3a0 security/tomoyo/mount.c:237
[<ffffffff8081518c>] tomoyo_sb_mount+0x32/0x44 security/tomoyo/tomoyo.c:392
[<ffffffff807f2ace>] security_sb_mount+0x54/0xa0 security/security.c:963
[<ffffffff80487a00>] path_mount+0xc4/0x1420 fs/namespace.c:3260
[<ffffffff804897d6>] do_mount fs/namespace.c:3331 [inline]
[<ffffffff804897d6>] __do_sys_mount fs/namespace.c:3539 [inline]
[<ffffffff804897d6>] sys_mount+0x2a6/0x334 fs/namespace.c:3516
[<ffffffff8000519c>] ret_from_syscall+0x0/0x2
INFO: task syz-executor.1:6713 blocked for more than 430 seconds.
      Not tainted 5.15.0-rc1-syzkaller-00001-g64a19591a293 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D stack:    0 pid: 6713 ppid:  2019 flags:0x00000004
Call Trace:
[<ffffffff82bdaf8a>] context_switch kernel/sched/core.c:4940 [inline]
[<ffffffff82bdaf8a>] __schedule+0x506/0x1048 kernel/sched/core.c:6287
[<ffffffff82bdbb32>] schedule+0x66/0x168 kernel/sched/core.c:6366
[<ffffffff8046db50>] d_wait_lookup fs/dcache.c:2562 [inline]
[<ffffffff8046db50>] d_alloc_parallel+0xd4e/0x13bc fs/dcache.c:2644
[<ffffffff8044ba7a>] __lookup_slow+0xe4/0x282 fs/namei.c:1642
[<ffffffff80452096>] lookup_slow fs/namei.c:1674 [inline]
[<ffffffff80452096>] walk_component+0x266/0x34c fs/namei.c:1970
[<ffffffff804525a6>] link_path_walk.part.0+0x42a/0x622 fs/namei.c:2297
[<ffffffff804549ec>] link_path_walk fs/namei.c:2222 [inline]
[<ffffffff804549ec>] path_openat+0x162/0x165e fs/namei.c:3557
[<ffffffff80458896>] do_filp_open+0xac/0x1a8 fs/namei.c:3588
[<ffffffff8042f6ba>] do_sys_openat2+0x106/0x2a8 fs/open.c:1200
[<ffffffff8042fef4>] do_sys_open fs/open.c:1216 [inline]
[<ffffffff8042fef4>] __do_sys_openat fs/open.c:1232 [inline]
[<ffffffff8042fef4>] sys_openat+0x80/0xee fs/open.c:1227
[<ffffffff8000519c>] ret_from_syscall+0x0/0x2

Showing all locks held in the system:
1 lock held by khungtaskd/28:
 #0: ffffffff83d2b3e8 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x32/0x1fa kernel/locking/lockdep.c:6448
1 lock held by klogd/1788:
2 locks held by getty/1952:
 #0: ffffffe00daf9098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x48 drivers/tty/tty_ldsem.c:340
 #1: ffffffd0107f52e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x9a0/0xafa drivers/tty/n_tty.c:2113
2 locks held by syz-executor.1/2019:
 #0: ffffffe0232ad910 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:796 [inline]
 #0: ffffffe0232ad910 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lookup_slow fs/namei.c:1673 [inline]
 #0: ffffffe0232ad910 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: walk_component+0x25a/0x34c fs/namei.c:1970
 #1: ffffffe0232add70 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0x9a/0x9e fs/fuse/inode.c:427
3 locks held by kworker/1:5/3426:
3 locks held by syz-executor.1/6700:
 #0: ffffffff83d82110 (tomoyo_ss){....}-{0:0}, at: tomoyo_mount_permission+0xae/0x3a0 security/tomoyo/mount.c:205
 #1: ffffffe0232ad910 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:796 [inline]
 #1: ffffffe0232ad910 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lookup_slow fs/namei.c:1673 [inline]
 #1: ffffffe0232ad910 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: walk_component+0x25a/0x34c fs/namei.c:1970
 #2: ffffffe0232add70 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0x9a/0x9e fs/fuse/inode.c:427
1 lock held by syz-executor.1/6713:
 #0: ffffffe0232ad910 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:796 [inline]
 #0: ffffffe0232ad910 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lookup_slow fs/namei.c:1673 [inline]
 #0: ffffffe0232ad910 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: walk_component+0x25a/0x34c fs/namei.c:1970

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