INFO: task syz-executor.0:6712 blocked for more than 143 secon
INFO: task syz-executor.0:6712 blocked for more than 143 seconds.
      Not tainted 6.15.0-rc6-syzkaller-ga82e92598ab1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:0     pid:6712  tgid:6712  ppid:1      task_flags:0x400140 flags:0x00000009
Call trace:
 __switch_to+0x414/0x834 arch/arm64/kernel/process.c:735 (T)
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x13b0/0x28d4 kernel/sched/core.c:6767
 __schedule_loop kernel/sched/core.c:6845 [inline]
 schedule+0xb4/0x230 kernel/sched/core.c:6860
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6917
 __mutex_lock_common+0xbd0/0x2190 kernel/locking/mutex.c:678
 __mutex_lock kernel/locking/mutex.c:746 [inline]
 mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:798
 fuse_lock_inode+0xd4/0x128 fs/fuse/inode.c:590
 fuse_lookup+0xc4/0x498 fs/fuse/dir.c:428
 __lookup_slow+0x254/0x378 fs/namei.c:1817
 lookup_slow+0x5c/0x80 fs/namei.c:1834
 walk_component fs/namei.c:2138 [inline]
 link_path_walk+0x78c/0xc60 fs/namei.c:2503
 path_openat+0x1cc/0x2c40 fs/namei.c:4035
 do_filp_open+0x18c/0x36c fs/namei.c:4066
 do_sys_openat2+0x11c/0x1b4 fs/open.c:1429
 do_sys_open fs/open.c:1444 [inline]
 __do_sys_openat fs/open.c:1460 [inline]
 __se_sys_openat fs/open.c:1455 [inline]
 __arm64_sys_openat+0x120/0x158 fs/open.c:1455
 __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+0x58/0x17c arch/arm64/kernel/entry-common.c:767
 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
INFO: task syz-executor.0:6806 blocked for more than 143 seconds.
      Not tainted 6.15.0-rc6-syzkaller-ga82e92598ab1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:0     pid:6806  tgid:6801  ppid:6712   task_flags:0x400140 flags:0x00000019
Call trace:
 __switch_to+0x414/0x834 arch/arm64/kernel/process.c:735 (T)
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x13b0/0x28d4 kernel/sched/core.c:6767
 __schedule_loop kernel/sched/core.c:6845 [inline]
 schedule+0xb4/0x230 kernel/sched/core.c:6860
 request_wait_answer fs/fuse/dev.c:564 [inline]
 __fuse_request_send fs/fuse/dev.c:578 [inline]
 __fuse_simple_request+0xbe8/0x141c fs/fuse/dev.c:672
 fuse_simple_request fs/fuse/fuse_i.h:1237 [inline]
 fuse_lookup_name+0x280/0x6c8 fs/fuse/dir.c:386
 fuse_lookup+0x110/0x498 fs/fuse/dir.c:429
 __lookup_slow+0x254/0x378 fs/namei.c:1817
 lookup_slow+0x5c/0x80 fs/namei.c:1834
 walk_component fs/namei.c:2138 [inline]
 link_path_walk+0x78c/0xc60 fs/namei.c:2503
 path_openat+0x1cc/0x2c40 fs/namei.c:4035
 do_filp_open+0x18c/0x36c fs/namei.c:4066
 do_sys_openat2+0x11c/0x1b4 fs/open.c:1429
 do_sys_open fs/open.c:1444 [inline]
 __do_sys_openat fs/open.c:1460 [inline]
 __se_sys_openat fs/open.c:1455 [inline]
 __arm64_sys_openat+0x120/0x158 fs/open.c:1455
 __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+0x58/0x17c arch/arm64/kernel/entry-common.c:767
 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600

Showing all locks held in the system:
1 lock held by khungtaskd/32:
 #0: ffff80008f5088a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330
2 locks held by pr/ttyAMA0/46:
2 locks held by getty/6262:
 #0: ffff0000cd35f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009a0032f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa0 drivers/tty/n_tty.c:2222
2 locks held by syz-executor.0/6712:
 #0: ffff0000ddb08148 (&type->i_mutex_dir_key#8){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:877 [inline]
 #0: ffff0000ddb08148 (&type->i_mutex_dir_key#8){++++}-{4:4}, at: lookup_slow+0x4c/0x80 fs/namei.c:1833
 #1: ffff0000ddb08610 (&fi->mutex){+.+.}-{4:4}, at: fuse_lock_inode+0xd4/0x128 fs/fuse/inode.c:590
2 locks held by syz-executor.0/6806:
 #0: ffff0000ddb08148 (&type->i_mutex_dir_key#8){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:877 [inline]
 #0: ffff0000ddb08148 (&type->i_mutex_dir_key#8){++++}-{4:4}, at: lookup_slow+0x4c/0x80 fs/namei.c:1833
 #1: ffff0000ddb08610 (&fi->mutex){+.+.}-{4:4}, at: fuse_lock_inode+0xd4/0x128 fs/fuse/inode.c:590

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