INFO: task syz.3.3110:28944 blocked in I/O wait for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.3110      state:D stack:25352 pid:28944 tgid:28942 ppid:28094  task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x2b0
 io_schedule+0x7f/0xd0
 lock_metapage+0x1fe/0x400
 __get_metapage+0x47a/0xdf0
 diNewExt+0xa53/0x3020
 diAllocAG+0xbed/0x1de0
 diAlloc+0x1e2/0x16b0
 ialloc+0x8c/0x8e0
 jfs_mkdir+0x1e4/0xb00
 vfs_mkdir+0x406/0x620
 filename_mkdirat+0x285/0x510
 __se_sys_mkdirat+0x35/0x150
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f13f999ce59
RSP: 002b:00007f13f7bf6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f13f9c15fa0 RCX: 00007f13f999ce59
RDX: 0000000000000000 RSI: 0000200000000800 RDI: ffffffffffffff9c
RBP: 00007f13f9a32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f13f9c16038 R14: 00007f13f9c15fa0 R15: 00007fffc82112c8
 </TASK>
INFO: task syz.3.3110:28947 blocked in I/O wait for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.3110      state:D stack:23720 pid:28947 tgid:28942 ppid:28094  task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x2b0
 io_schedule+0x7f/0xd0
 lock_metapage+0x1fe/0x400
 __get_metapage+0x47a/0xdf0
 xtSplitPage+0x276/0x2130
 xtSplitUp+0x33a/0x1ef0
 xtInsert+0x43e/0xf10
 extAlloc+0xac6/0x1010
 jfs_get_block+0x351/0xad0
 __blockdev_direct_IO+0x1590/0x3380
 jfs_direct_IO+0x119/0x220
 generic_file_direct_write+0x1d0/0x3f0
 __generic_file_write_iter+0x11d/0x230
 generic_file_write_iter+0xae/0x330
 iter_file_splice_write+0xa31/0x1240
 direct_splice_actor+0x101/0x160
 splice_direct_to_actor+0x57b/0xcb0
 do_splice_direct+0x195/0x290
 do_sendfile+0x52e/0x7c0
 __se_sys_sendfile64+0x144/0x1a0
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f13f999ce59
RSP: 002b:00007f13f7bd5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f13f9c16090 RCX: 00007f13f999ce59
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 00007f13f9a32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f13f9c16128 R14: 00007f13f9c16090 R15: 00007fffc82112c8
 </TASK>
INFO: task syz.3.3110:28948 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.3110      state:D stack:28808 pid:28948 tgid:28942 ppid:28094  task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x2b0
 schedule_preempt_disabled+0x13/0x30
 rwsem_down_read_slowpath+0x6ba/0x920
 down_read+0x9c/0x330
 lookup_slow+0x46/0x70
 path_lookupat+0x3f5/0x8c0
 filename_lookup+0x265/0x5d0
 user_path_at+0x40/0x160
 __se_sys_mount+0x2dc/0x420
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f13f999ce59
RSP: 002b:00007f13f7bb4028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f13f9c16180 RCX: 00007f13f999ce59
RDX: 0000200000000100 RSI: 0000200000000380 RDI: 0000000000000000
RBP: 00007f13f9a32e6f R08: 0000200000000400 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f13f9c16218 R14: 00007f13f9c16180 R15: 00007fffc82112c8
 </TASK>
INFO: task syz.3.3110:28949 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.3110      state:D stack:26792 pid:28949 tgid:28942 ppid:28094  task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x2b0
 schedule_preempt_disabled+0x13/0x30
 rwsem_down_write_slowpath+0x87d/0x1080
 down_write+0x1bc/0x200
 path_openat+0xae3/0x3830
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x115/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f13f999ce59
RSP: 002b:00007f13f7791028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f13f9c16270 RCX: 00007f13f999ce59
RDX: 0000000000042042 RSI: 0000200000000380 RDI: ffffffffffffff9c
RBP: 00007f13f9a32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000138 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f13f9c16308 R14: 00007f13f9c16270 R15: 00007fffc82112c8
 </TASK>
INFO: task syz.3.3110:28950 blocked for more than 144 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.3110      state:D stack:28808 pid:28950 tgid:28942 ppid:28094  task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x2b0
 schedule_preempt_disabled+0x13/0x30
 rwsem_down_read_slowpath+0x6ba/0x920
 down_read+0x9c/0x330
 path_openat+0xad4/0x3830
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x115/0x200
 __x64_sys_open+0x11e/0x150
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f13f999ce59
RSP: 002b:00007f13f7770028 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f13f9c16360 RCX: 00007f13f999ce59
RDX: 0000000000000050 RSI: 0000000000008000 RDI: 00002000000000c0
RBP: 00007f13f9a32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f13f9c163f8 R14: 00007f13f9c16360 R15: 00007fffc82112c8
 </TASK>
INFO: task syz.3.3110:28951 blocked for more than 144 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.3110      state:D stack:28736 pid:28951 tgid:28942 ppid:28094  task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x2b0
 schedule_preempt_disabled+0x13/0x30
 rwsem_down_write_slowpath+0x87d/0x1080
 down_write+0x1bc/0x200
 path_openat+0xae3/0x3830
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x115/0x200
 __x64_sys_open+0x11e/0x150
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f13f999ce59
RSP: 002b:00007f13f774f028 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f13f9c16450 RCX: 00007f13f999ce59
RDX: 0000000000000000 RSI: 0000000000145942 RDI: 0000200000000240
RBP: 00007f13f9a32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f13f9c164e8 R14: 00007f13f9c16450 R15: 00007fffc82112c8
 </TASK>
INFO: task syz.3.3110:28952 blocked for more than 144 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.3110      state:D stack:28736 pid:28952 tgid:28942 ppid:28094  task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x2b0
 schedule_preempt_disabled+0x13/0x30
 rwsem_down_write_slowpath+0x87d/0x1080
 down_write+0x1bc/0x200
 path_openat+0xae3/0x3830
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x115/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f13f999ce59
RSP: 002b:00007f13f772e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f13f9c16540 RCX: 00007f13f999ce59
RDX: 0000000000101042 RSI: 0000200000000040 RDI: ffffffffffffff9c
RBP: 00007f13f9a32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000001d8 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f13f9c165d8 R14: 00007f13f9c16540 R15: 00007fffc82112c8
 </TASK>
INFO: task syz.3.3110:28953 blocked for more than 144 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.3110      state:D stack:28808 pid:28953 tgid:28942 ppid:28094  task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x2b0
 schedule_preempt_disabled+0x13/0x30
 rwsem_down_write_slowpath+0x87d/0x1080
 down_write+0x1bc/0x200
 path_openat+0xae3/0x3830
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x115/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f13f999ce59
RSP: 002b:00007f13f770d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f13f9c16630 RCX: 00007f13f999ce59
RDX: 00000000000c4842 RSI: 0000200000000300 RDI: ffffffffffffff9c
RBP: 00007f13f9a32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000001ff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f13f9c166c8 R14: 00007f13f9c16630 R15: 00007fffc82112c8
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e959c20 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
4 locks held by kworker/u9:4/1113:
 #0: ffff8881626f1940 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #1: ffffc900074e7c40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #2: ffff8881154b00d8 (&type->s_umount_key#69){++++}-{4:4}, at: super_trylock_shared+0x20/0xf0
 #3: ffff88811cd56300 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: jfs_commit_inode+0x1ca/0x530
1 lock held by dhcpcd/5354:
 #0: ffffffff8fdead00 (rtnl_mutex){+.+.}-{4:4}, at: devinet_ioctl+0x2fb/0x1c50
2 locks held by getty/5436:
 #0: ffff8881128730a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900034732e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360
6 locks held by kworker/u8:5/11346:
 #0: ffff8881012bd940 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #1: ffffc90006e67c40 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #2: ffffffff8fddc168 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xf5/0x810
 #3: ffffffff8fdead00 (rtnl_mutex){+.+.}-{4:4}, at: ieee80211_unregister_hw+0x55/0x2c0
 #4: ffff8881a9ab07a0 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_remove_interfaces+0x132/0x6a0
 #5: ffffffff8e95ff28 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x38d/0x770
3 locks held by kworker/u9:6/16334:
 #0: ffff8881000ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #1: ffffc9000443fc40 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #2: ffffffff8fdead00 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
3 locks held by kworker/u8:1/26104:
 #0: ffff888168665940 ((wq_completion)cfg80211){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #1: ffffc9000467fc40 ((work_completion)(&(&rdev->dfs_update_channels_wk)->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa20/0x14e0
 #2: ffffffff8fdead00 (rtnl_mutex){+.+.}-{4:4}, at: cfg80211_dfs_channels_update_work+0xd9/0x640
4 locks held by syz.3.3110/28944:
 #0: ffff8881154b0450 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90
 #1: ffff88811cd51708 (&type->i_mutex_dir_key#14/1){+.+.}-{4:4}, at: filename_create+0x200/0x370
 #2: ffff888117978910 (&(imap->im_aglock[index])){+.+.}-{4:4}, at: diAlloc+0x1c3/0x16b0
 #3: ffff88811cd559a0 (&jfs_ip->rdwrlock/1){++++}-{4:4}, at: diAllocAG+0x255/0x1de0
4 locks held by syz.3.3110/28947:
 #0: ffff8881154b0450 (sb_writers#18){.+.+}-{0:0}, at: direct_splice_actor+0x49/0x160
 #1: ffff88811cd54340 (&sb->s_type->i_mutex_key#29){+.+.}-{4:4}, at: generic_file_write_iter+0x82/0x330
 #2: ffff88811cd53f18 (&jfs_ip->rdwrlock#2){++++}-{4:4}, at: jfs_get_block+0x14e/0xad0
 #3: ffff88811cd53fa0 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: extAlloc+0x130/0x1010
1 lock held by syz.3.3110/28948:
 #0: ffff88811cd51708 (&type->i_mutex_dir_key#15){++++}-{4:4}, at: lookup_slow+0x46/0x70
2 locks held by syz.3.3110/28949:
 #0: ffff8881154b0450 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90
 #1: ffff88811cd51708 (&type->i_mutex_dir_key#15){++++}-{4:4}, at: path_openat+0xae3/0x3830
1 lock held by syz.3.3110/28950:
 #0: ffff88811cd51708 (&type->i_mutex_dir_key#15){++++}-{4:4}, at: path_openat+0xad4/0x3830
2 locks held by syz.3.3110/28951:
 #0: ffff8881154b0450 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90
 #1: ffff88811cd51708 (&type->i_mutex_dir_key#15){++++}-{4:4}, at: path_openat+0xae3/0x3830
2 locks held by syz.3.3110/28952:
 #0: ffff8881154b0450 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90
 #1: ffff88811cd51708 (&type->i_mutex_dir_key#15){++++}-{4:4}, at: path_openat+0xae3/0x3830
2 locks held by syz.3.3110/28953:
 #0: ffff8881154b0450 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90
 #1: ffff88811cd51708 (&type->i_mutex_dir_key#15){++++}-{4:4}, at: path_openat+0xae3/0x3830
2 locks held by syz-executor/1560:
 #0: ffff8881a91e0ea0 (&hdev->req_lock){+.+.}-{4:4}, at: hci_unregister_dev+0x22a/0x5b0
 #1: ffff8881a91e00b8 (&hdev->lock){+.+.}-{4:4}, at: hci_dev_close_sync+0x61f/0x10a0
5 locks held by syz.7.3620/1687:
 #0: ffff888167d10ea0 (&hdev->req_lock){+.+.}-{4:4}, at: hci_unregister_dev+0x22a/0x5b0
 #1: ffff888167d100b8 (&hdev->lock){+.+.}-{4:4}, at: hci_dev_close_sync+0x61f/0x10a0
 #2: ffffffff8ff71620 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_conn_hash_flush+0x99/0x260
 #3: ffff8881096b32f8 (&conn->lock#2){+.+.}-{4:4}, at: l2cap_conn_del+0x92/0x570
 #4: ffffffff8e95ff28 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x38d/0x770

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 34 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150
 nmi_cpu_backtrace+0x274/0x2d0
 nmi_trigger_cpumask_backtrace+0x17a/0x380
 sys_info+0x135/0x170
 watchdog+0xfd7/0x1030
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 1691 Comm: syz.8.3621 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__rcu_read_lock+0x2f/0x60
Code: 65 48 8b 1d 1b 9e 93 11 48 81 c3 c4 04 00 00 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 75 18 ff 03 <8b> 03 3d 00 00 00 40 7d 07 5b e9 42 93 0a 0a cc 90 0f 0b 90 eb f3
RSP: 0018:ffffc90008aa7928 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffff88810eb72284 RCX: dffffc0000000000
RDX: 00000000ffffffff RSI: 0000000000000024 RDI: ffffea0006b2a800
RBP: dffffc0000000000 R08: ffffffff823bc4be R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8e959c20 R12: ffffea0006b2a800
R13: ffffea0006b2a800 R14: ffff88816b98be20 R15: ffff88823fff7140
FS:  00007f619e7c06c0(0000) GS:ffff88818dc26000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd53a47808 CR3: 000000000e746000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 lruvec_stat_mod_folio+0x67/0x3e0
 vfree+0x197/0x4a0
 kcov_close+0x28/0x50
 __fput+0x418/0xa50
 task_work_run+0x1d9/0x270
 do_exit+0x73a/0x2360
 do_group_exit+0x22d/0x2f0
 get_signal+0x121b/0x12c0
 arch_do_signal_or_restart+0xbb/0x860
 exit_to_user_mode_loop+0x104/0x730
 do_syscall_64+0x353/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f619d99ce59
Code: Unable to access opcode bytes at 0x7f619d99ce2f.
RSP: 002b:00007f619e7c0028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f619dc15fa0 RCX: 00007f619d99ce59
RDX: 0000200000000080 RSI: 000000008004587d RDI: 0000000000000004
RBP: 00007f619da32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f619dc16038 R14: 00007f619dc15fa0 R15: 00007ffcb72e5248
 </TASK>
