INFO: task syz.0.348:5304 blocked for more than 143 seconds.
Not tainted 5.15.162-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.348 state:D stack: 0 pid: 5304 ppid: 3983 flags:0x00000001
Call trace:
__switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518
context_switch kernel/sched/core.c:5030 [inline]
__schedule+0xf10/0x1e48 kernel/sched/core.c:6376
schedule+0x11c/0x1c8 kernel/sched/core.c:6459
d_wait_lookup+0x1a0/0x27c fs/dcache.c:2563
d_alloc_parallel+0x9e0/0x11bc fs/dcache.c:2645
lookup_open fs/namei.c:3387 [inline]
open_last_lookups fs/namei.c:3532 [inline]
path_openat+0x73c/0x26cc fs/namei.c:3739
do_filp_open+0x1a8/0x3b4 fs/namei.c:3769
do_sys_openat2+0x128/0x3d8 fs/open.c:1253
do_sys_open fs/open.c:1269 [inline]
__do_sys_openat fs/open.c:1285 [inline]
__se_sys_openat fs/open.c:1280 [inline]
__arm64_sys_openat+0x1f0/0x240 fs/open.c:1280
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffff800014b214e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:311
4 locks held by kworker/u4:3/293:
2 locks held by getty/3735:
#0: ffff0000d3ea9098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340
#1: ffff80001a33e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1204 drivers/tty/n_tty.c:2158
4 locks held by udevd/3972:
2 locks held by udevd/4358:
#0: ffff0000d4cf0460 (sb_writers#5){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377
#1: ffff0000d2e8b438 (&type->i_mutex_dir_key#5){++++}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline]
#1: ffff0000d2e8b438 (&type->i_mutex_dir_key#5){++++}-{3:3}, at: open_last_lookups fs/namei.c:3529 [inline]
#1: ffff0000d2e8b438 (&type->i_mutex_dir_key#5){++++}-{3:3}, at: path_openat+0x640/0x26cc fs/namei.c:3739
1 lock held by udevd/4409:
2 locks held by udevd/4416:
#0: ffff0000d4cf0460 (sb_writers#5){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377
#1: ffff0000d2e8b438 (&type->i_mutex_dir_key#5/1){+.+.}-{3:3}, at: do_renameat2+0x534/0x10c0 fs/namei.c:4924
1 lock held by syz.0.348/5262:
1 lock held by syz.0.348/5304:
#0: ffff0000e3e4c188 (&type->i_mutex_dir_key#19){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:799 [inline]
#0: ffff0000e3e4c188 (&type->i_mutex_dir_key#19){.+.+}-{3:3}, at: open_last_lookups fs/namei.c:3531 [inline]
#0: ffff0000e3e4c188 (&type->i_mutex_dir_key#19){.+.+}-{3:3}, at: path_openat+0x630/0x26cc fs/namei.c:3739
2 locks held by syz.3.408/5480:
1 lock held by syz.3.408/5500:
#0: ffff0000e3e4c6d0 (&type->i_mutex_dir_key#19){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:799 [inline]
#0: ffff0000e3e4c6d0 (&type->i_mutex_dir_key#19){.+.+}-{3:3}, at: open_last_lookups fs/namei.c:3531 [inline]
#0: ffff0000e3e4c6d0 (&type->i_mutex_dir_key#19){.+.+}-{3:3}, at: path_openat+0x630/0x26cc fs/namei.c:3739
2 locks held by syz-executor/5646:
1 lock held by syz.3.1116/7963:
2 locks held by syz.0.1118/7967:
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