INFO: task syz-executor.0:19224 blocked for more than 143 seconds.
      Not tainted 6.3.0-syzkaller-00436-g173ea743bf7a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:26648 pid:19224 ppid:5014   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5307 [inline]
 __schedule+0x173b/0x4630 kernel/sched/core.c:6625
 schedule+0xc3/0x180 kernel/sched/core.c:6701
 jfs_flush_journal+0x733/0xec0 fs/jfs/jfs_logmgr.c:1564
 jfs_sync_fs+0x80/0xa0 fs/jfs/super.c:684
 sync_filesystem+0x1c0/0x220 fs/sync.c:66
 jfs_remount+0x136/0x6b0 fs/jfs/super.c:432
 reconfigure_super+0x3c9/0x7c0 fs/super.c:956
 do_remount fs/namespace.c:2701 [inline]
 path_mount+0xc19/0xf80 fs/namespace.c:3361
 do_mount fs/namespace.c:3382 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3bb028d69a
RSP: 002b:00007f3bb0f75f88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3bb028d69a
RDX: 0000000020000180 RSI: 0000000020000100 RDI: 0000000000000000
RBP: 00007f3bb0f76020 R08: 00007f3bb0f76020 R09: 0000000001a404ac
R10: 0000000001a404ac R11: 0000000000000206 R12: 0000000020000180
R13: 0000000020000100 R14: 00007f3bb0f75fe0 R15: 0000000020000e80
 </TASK>

Showing all locks held in the system:
2 locks held by kworker/u4:1/12:
 #0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
 #1: ffff8880b9828788 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x441/0x770 kernel/sched/psi.c:976
1 lock held by rcu_tasks_kthre/13:
 #0: ffffffff8cf256b0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/14:
 #0: ffffffff8cf25a70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/28:
 #0: ffffffff8cf254e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
4 locks held by kworker/u4:3/46:
 #0: ffff8880b983be98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:539
 #1: ffffc90000b77d20 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
 #2: ffff8880b9929598 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x120/0x260 kernel/time/timer.c:999
 #3: ffffffff91d10308 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x9a/0x6d0 lib/debugobjects.c:665
2 locks held by getty/4728:
 #0: ffff88814a115098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
 #1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.0/19224:
 #0: ffff88802abe20e0 (&type->s_umount_key#68){++++}-{3:3}, at: do_remount fs/namespace.c:2698 [inline]
 #0: ffff88802abe20e0 (&type->s_umount_key#68){++++}-{3:3}, at: path_mount+0xbd2/0xf80 fs/namespace.c:3361
2 locks held by syz-executor.5/21452:
 #0: ffff88808db8e0e0 (&type->s_umount_key#62/1){+.+.}-{3:3}, at: alloc_super+0x217/0x930 fs/super.c:228
 #1: ffffffff8cf2abb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
 #1: ffffffff8cf2abb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a3/0x890 kernel/rcu/tree_exp.h:992
1 lock held by syz-executor.4/21479:
2 locks held by syz-executor.2/21481:

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

NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.3.0-syzkaller-00436-g173ea743bf7a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
 watchdog+0xec2/0xf00 kernel/hung_task.c:379
 kthread+0x2b2/0x350 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4994 Comm: syz-fuzzer Not tainted 6.3.0-syzkaller-00436-g173ea743bf7a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0033:0x52d192
Code: 41 01 d2 45 8d 1c 02 44 0f b6 63 01 45 01 e2 45 01 d3 44 0f b6 63 02 45 01 e2 45 01 d3 44 0f b6 63 03 43 8d 14 14 42 8d 04 1a <48> 83 c7 fc 49 89 fa 48 f7 df 48 c1 ff 3f 83 e7 04 48 01 fb 48 83
RSP: 002b:000000c01b9c4c40 EFLAGS: 00000216
RAX: 000000000214b24f RBX: 000000c00747e284 RCX: 000000000000132c
RDX: 000000000000d20e RSI: 0000000000000a50 RDI: 0000000000001d7c
RBP: 000000c01b9c4c68 R08: 000000c00747f5b0 R09: 0000000000000a50
R10: 000000000000d20e R11: 000000000213e041 R12: 0000000000000000
R13: 0000000000007f59 R14: 000000c0000061a0 R15: 0000000000000001
FS:  000000c00c0a4c90 GS:  0000000000000000