INFO: task syz-executor.0:19084 blocked for more than 143 seconds.
      Not tainted 6.9.0-next-20240514-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:20280 pid:19084 tgid:19084 ppid:1      flags:0x00000006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
 __down_read_common kernel/locking/rwsem.c:1250 [inline]
 __down_read kernel/locking/rwsem.c:1263 [inline]
 down_read+0x705/0xa40 kernel/locking/rwsem.c:1528
 kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159
 lookup_fast+0x1f4/0x4a0
 walk_component fs/namei.c:2000 [inline]
 link_path_walk+0x60b/0xea0 fs/namei.c:2331
 path_openat+0x24a/0x3280 fs/namei.c:3803
 do_filp_open+0x235/0x490 fs/namei.c:3834
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1405
 do_sys_open fs/open.c:1420 [inline]
 __do_sys_openat fs/open.c:1436 [inline]
 __se_sys_openat fs/open.c:1431 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1431
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbe9c67d7c1
RSP: 002b:00007ffc9196d0c0 EFLAGS: 00000287
 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000186 RCX: 00007fbe9c67d7c1
RDX: 0000000000090800 RSI: 00007fbe9c6c93da RDI: 00000000ffffff9c
RBP: 00007ffc9196d18c R08: 0000000000000000 R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 0000000000103e7c R14: 0000000000103532 R15: 0000000000000005
 </TASK>
INFO: task syz-executor.3:19305 blocked for more than 144 seconds.
      Not tainted 6.9.0-next-20240514-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D stack:20280 pid:19305 tgid:19305 ppid:1      flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
 rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
 __down_write_common+0x1af/0x200 kernel/locking/rwsem.c:1306
 kernfs_remove_by_name_ns+0x7a/0x160 fs/kernfs/dir.c:1689
 kernfs_remove_by_name include/linux/kernfs.h:625 [inline]
 remove_files fs/sysfs/group.c:28 [inline]
 sysfs_remove_group+0xfe/0x2c0 fs/sysfs/group.c:319
 sysfs_remove_groups+0x54/0xb0 fs/sysfs/group.c:343
 __kobject_del+0x84/0x310 lib/kobject.c:595
 kobject_cleanup lib/kobject.c:680 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x245/0x480 lib/kobject.c:737
 f2fs_unregister_sysfs+0x4c/0x90 fs/f2fs/sysfs.c:1652
 f2fs_put_super+0xab/0x1130 fs/f2fs/super.c:1590
 generic_shutdown_super+0x136/0x2d0 fs/super.c:642
 kill_block_super+0x44/0x90 fs/super.c:1676
 kill_f2fs_super+0x344/0x690 fs/f2fs/super.c:4907
 deactivate_locked_super+0xc4/0x130 fs/super.c:473
 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1267
 task_work_run+0x24f/0x310 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x168/0x370 kernel/entry/common.c:218
 do_syscall_64+0x102/0x240 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f62d507f097
RSP: 002b:00007ffd65a764c8 EFLAGS: 00000246
 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f62d507f097
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd65a76580
RBP: 00007ffd65a76580 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd65a77640
R13: 00007f62d50c9336 R14: 000000000010283b R15: 0000000000000007
 </TASK>
INFO: task syz-executor.2:20826 blocked for more than 146 seconds.
      Not tainted 6.9.0-next-20240514-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:19640 pid:20826 tgid:20826 ppid:1      flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
 __down_read_common kernel/locking/rwsem.c:1250 [inline]
 __down_read kernel/locking/rwsem.c:1263 [inline]
 down_read+0x705/0xa40 kernel/locking/rwsem.c:1528
 kernfs_find_and_get_ns+0x71/0x110 fs/kernfs/dir.c:918
 kernfs_find_and_get include/linux/kernfs.h:604 [inline]
 sysfs_remove_group+0x6a/0x2c0 fs/sysfs/group.c:308
 loop_sysfs_exit drivers/block/loop.c:749 [inline]
 __loop_clr_fd+0x398/0x810 drivers/block/loop.c:1161
 loop_clr_fd drivers/block/loop.c:1253 [inline]
 lo_ioctl+0x174a/0x21a0 drivers/block/loop.c:1555
 blkdev_ioctl+0x580/0x6b0 block/ioctl.c:676
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f989c47dacb
RSP: 002b:00007fff6143a080 EFLAGS: 00000246
 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f989c47dacb
RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000003
RBP: 00007fff6143a13c R08: 0000000000000000 R09: 00007fff61439e27
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000032
R13: 0000000000102f2f R14: 00000000001023a9 R15: 0000000000000008
 </TASK>
INFO: task syz-executor.1:20861 blocked for more than 149 seconds.
      Not tainted 6.9.0-next-20240514-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D stack:20208 pid:20861 tgid:20861 ppid:1      flags:0x00000006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
 __down_read_common kernel/locking/rwsem.c:1250 [inline]
 __down_read kernel/locking/rwsem.c:1263 [inline]
 down_read+0x705/0xa40 kernel/locking/rwsem.c:1528
 kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159
 lookup_fast+0x1f4/0x4a0
 walk_component fs/namei.c:2000 [inline]
 link_path_walk+0x60b/0xea0 fs/namei.c:2331
 path_openat+0x24a/0x3280 fs/namei.c:3803
 do_filp_open+0x235/0x490 fs/namei.c:3834
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1405
 do_sys_open fs/open.c:1420 [inline]
 __do_sys_openat fs/open.c:1436 [inline]
 __se_sys_openat fs/open.c:1431 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1431
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd839a7d7c1
RSP: 002b:00007ffc7baf16d0 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00000000000000f1 RCX: 00007fd839a7d7c1
RDX: 0000000000090800 RSI: 00007fd839ac93da RDI: 00000000ffffff9c
RBP: 00007ffc7baf179c R08: 0000000000000000 R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 0000000000103573 R14: 000000000010319c R15: 000000000000000e
 </TASK>
INFO: task syz-executor.4:21144 blocked for more than 150 seconds.
      Not tainted 6.9.0-next-20240514-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D
 stack:19696 pid:21144 tgid:21144 ppid:1      flags:0x00000006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
 __down_read_common kernel/locking/rwsem.c:1250 [inline]
 __down_read kernel/locking/rwsem.c:1263 [inline]
 down_read+0x705/0xa40 kernel/locking/rwsem.c:1528
 kernfs_dop_revalidate+0xd4/0x560 fs/kernfs/dir.c:1159
 lookup_fast+0x1f4/0x4a0
 walk_component fs/namei.c:2000 [inline]
 link_path_walk+0x60b/0xea0 fs/namei.c:2331
 path_openat+0x24a/0x3280 fs/namei.c:3803
 do_filp_open+0x235/0x490 fs/namei.c:3834
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1405
 do_sys_open fs/open.c:1420 [inline]
 __do_sys_openat fs/open.c:1436 [inline]
 __se_sys_openat fs/open.c:1431 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1431
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f545c07d7c1
RSP: 002b:00007fff82cd2b50 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00000000000000a6 RCX: 00007f545c07d7c1
RDX: 0000000000090800 RSI: 00007f545c0c93da RDI: 00000000ffffff9c
RBP: 00007fff82cd2c1c R08: 0000000000000000 R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 00000000001035d8 R14: 00000000001035aa R15: 000000000000000b
 </TASK>
INFO: task syz-executor.1:22607 blocked for more than 152 seconds.
      Not tainted 6.9.0-next-20240514-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D stack:27056 pid:22607 tgid:22606 ppid:20861  flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2557
 do_wait_for_common kernel/sched/completion.c:95 [inline]
 __wait_for_common kernel/sched/completion.c:116 [inline]
 wait_for_common kernel/sched/completion.c:127 [inline]
 wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
 __synchronize_srcu+0x357/0x400 kernel/rcu/srcutree.c:1396
 mn_hlist_release mm/mmu_notifier.c:345 [inline]
 __mmu_notifier_release+0x4b6/0x660 mm/mmu_notifier.c:357
 mmu_notifier_release include/linux/mmu_notifier.h:402 [inline]
 exit_mmap+0x12c/0xc80 mm/mmap.c:3323
 __mmput+0x115/0x3c0 kernel/fork.c:1346
 exit_mm+0x220/0x310 kernel/exit.c:565
 do_exit+0x9aa/0x27e0 kernel/exit.c:861
 do_group_exit+0x207/0x2c0 kernel/exit.c:1023