INFO: task syz-executor.2:10322 blocked for more than 144 seconds.
      Not tainted 6.3.0-rc1-syzkaller-00274-g134231664868 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:28088 pid:10322 ppid:5113   flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5304 [inline]
 __schedule+0xc91/0x57d0 kernel/sched/core.c:6622
 schedule+0xde/0x1a0 kernel/sched/core.c:6698
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6757
 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
 __down_read_common+0x7df/0xf30 kernel/locking/rwsem.c:1250
 mmap_read_lock include/linux/mmap_lock.h:117 [inline]
 do_user_addr_fault+0xa51/0x1230 arch/x86/mm/fault.c:1358
 handle_page_fault arch/x86/mm/fault.c:1498 [inline]
 exc_page_fault+0x98/0x170 arch/x86/mm/fault.c:1554
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7f7f470276f6
RSP: 002b:00007ffd9dc3d888 EFLAGS: 00010287
RAX: 0000001b32435000 RBX: 00007f7f471ac018 RCX: 0000001b32420000
RDX: 0000001b32435004 RSI: 0000001b32434304 RDI: 000000008bf50651
RBP: 000000008bf50651 R08: 0000001b32a20000 R09: 000000008bf50655
R10: 00007ffd9dd2d090 R11: 000000000002284c R12: 00007f7f471a0000
R13: 0000000000000001 R14: 0000000000000cc6 R15: ffffffff82e3a0d9
 </TASK>
INFO: task syz-executor.2:10323 blocked for more than 147 seconds.
      Not tainted 6.3.0-rc1-syzkaller-00274-g134231664868 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:26304 pid:10323 ppid:5113   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5304 [inline]
 __schedule+0xc91/0x57d0 kernel/sched/core.c:6622
 schedule+0xde/0x1a0 kernel/sched/core.c:6698
 io_schedule+0xbe/0x130 kernel/sched/core.c:8884
 folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1301
 folio_lock include/linux/pagemap.h:952 [inline]
 write_cache_pages+0x5b7/0xe10 mm/page-writeback.c:2440
 mpage_writepages+0xc6/0x170 fs/mpage.c:653
 udf_writepages+0x86/0xe0 fs/udf/inode.c:211
 do_writepages+0x1a8/0x640 mm/page-writeback.c:2551
 filemap_fdatawrite_wbc mm/filemap.c:390 [inline]
 filemap_fdatawrite_wbc+0x147/0x1b0 mm/filemap.c:380
 __filemap_fdatawrite_range+0xb8/0xf0 mm/filemap.c:423
 file_write_and_wait_range+0xce/0x140 mm/filemap.c:781
 __generic_file_fsync+0x78/0x1f0 fs/libfs.c:1132
 generic_file_fsync+0x77/0x120 fs/libfs.c:1173
 vfs_fsync_range+0x13e/0x230 fs/sync.c:188
 generic_write_sync include/linux/fs.h:2452 [inline]
 udf_file_write_iter+0x363/0x740 fs/udf/file.c:126
 call_write_iter include/linux/fs.h:1851 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x9ed/0xe10 fs/read_write.c:584
 ksys_write+0x12b/0x250 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7f4708c0f9
RSP: 002b:00007f7f47e0a168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f7f471abf80 RCX: 00007f7f4708c0f9
RDX: 000000000208e24b RSI: 0000000020000080 RDI: 0000000000000004
RBP: 00007f7f470e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd9dc3d8bf R14: 00007f7f47e0a300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.2:10344 blocked for more than 149 seconds.
      Not tainted 6.3.0-rc1-syzkaller-00274-g134231664868 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:28088 pid:10344 ppid:5113   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5304 [inline]
 __schedule+0xc91/0x57d0 kernel/sched/core.c:6622
 schedule+0xde/0x1a0 kernel/sched/core.c:6698
 io_schedule+0xbe/0x130 kernel/sched/core.c:8884
 folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1301
 folio_wait_writeback+0x3b/0x320 mm/page-writeback.c:3127
 migrate_folio_unmap mm/migrate.c:1198 [inline]
 migrate_pages_batch+0x1281/0x3660 mm/migrate.c:1691
 migrate_pages+0x1a20/0x21e0 mm/migrate.c:1979
 do_mbind mm/mempolicy.c:1338 [inline]
 kernel_mbind+0x4df/0x7c0 mm/mempolicy.c:1485
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7f4708c0f9
RSP: 002b:00007f7f47de9168 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed
RAX: ffffffffffffffda RBX: 00007f7f471ac050 RCX: 00007f7f4708c0f9
RDX: 0000000000000000 RSI: 0000000000800000 RDI: 0000000020001000
RBP: 00007f7f470e7ae9 R08: 0000000000000000 R09: 0000000000000002
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd9dc3d8bf R14: 00007f7f47de9300 R15: 0000000000022000
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/11:
 #0: ffffffff8c7924f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510
1 lock held by rcu_tasks_trace/12:
 #0: ffffffff8c7921f0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510
1 lock held by khungtaskd/27:
 #0: ffffffff8c793040 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6495
3 locks held by kworker/u4:4/55:
 #0: ffff88801785c938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff88801785c938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff88801785c938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff88801785c938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline]
 #0: ffff88801785c938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline]
 #0: ffff88801785c938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x87a/0x1710 kernel/workqueue.c:2361
 #1: ffffc9000201fda8 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1710 kernel/workqueue.c:2365
 #2: ffff88802fe7e0e0 (&type->s_umount_key#75){++++}-{3:3}, at: trylock_super+0x21/0x110 fs/super.c:414
2 locks held by getty/4751:
 #0: ffff88814a57e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
 #1: ffffc900020382f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.0/5103:
 #0: ffffffff8c79e338 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
 #0: ffffffff8c79e338 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x64a/0x770 kernel/rcu/tree_exp.h:989
1 lock held by syz-executor.4/5117:
 #0: ffffffff8c79e338 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
 #0: ffffffff8c79e338 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3e8/0x770 kernel/rcu/tree_exp.h:989
2 locks held by kworker/u4:33/6494:
1 lock held by syz-executor.2/10322:
 #0: ffff888077c54ad8 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
 #0: ffff888077c54ad8 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault+0xa51/0x1230 arch/x86/mm/fault.c:1358
2 locks held by syz-executor.2/10323:
 #0: ffff8880200a1da8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe7/0x100 fs/file.c:1047