INFO: task syz-executor.2:7376 blocked for more than 143 seconds.
      Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:0     pid:7376  tgid:7375  ppid:6225   flags:0x0000000d
Call trace:
 __switch_to+0x314/0x560 arch/arm64/kernel/process.c:553
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0x1498/0x24b4 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xb8/0x19c kernel/sched/core.c:6817
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6874
 __mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:684
 __mutex_lock kernel/locking/mutex.c:752 [inline]
 mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:804
 exfat_sync_fs+0x6c/0x108 fs/exfat/super.c:53
 sync_fs_one_sb+0xd8/0x120 fs/sync.c:84
 iterate_supers+0xd8/0x4dc fs/super.c:922
 ksys_sync+0xd4/0x1cc fs/sync.c:104
 __arm64_sys_sync+0x14/0x24 fs/sync.c:113
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

Showing all locks held in the system:
1 lock held by khungtaskd/29:
 #0: ffff80008ee74ac0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:297
2 locks held by getty/5922:
 #0: ffff0000cc5150a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff800094fd72f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2201
5 locks held by syz-executor.0/6347:
2 locks held by syz-executor.2/7376:
 #0: ffff00011e4380e0 (&type->s_umount_key#56){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
 #0: ffff00011e4380e0 (&type->s_umount_key#56){++++}-{3:3}, at: super_lock+0x244/0x33c fs/super.c:120
 #1: ffff00011e4360e0 (&sbi->s_lock){+.+.}-{3:3}, at: exfat_sync_fs+0x6c/0x108 fs/exfat/super.c:53
2 locks held by syz-executor.2/14076:
 #0: ffff00011e4380e0 (&type->s_umount_key#56){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
 #0: ffff00011e4380e0 (&type->s_umount_key#56){++++}-{3:3}, at: super_lock+0x244/0x33c fs/super.c:120
 #1: ffff00011e4360e0 (&sbi->s_lock){+.+.}-{3:3}, at: exfat_sync_fs+0x6c/0x108 fs/exfat/super.c:53

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