INFO: task syz-executor:6558 blocked for more than 147 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:0 pid:6558 tgid:6558 ppid:6546 task_flags:0x400140 flags:0x00000010
Call trace:
__switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T)
context_switch kernel/sched/core.c:5325 [inline]
__schedule+0x13b0/0x2864 kernel/sched/core.c:6929
__schedule_loop kernel/sched/core.c:7011 [inline]
schedule+0xb4/0x230 kernel/sched/core.c:7026
jbd2_log_wait_commit+0x244/0x418 fs/jbd2/journal.c:683
ocfs2_sync_fs+0x1c4/0x2a4 fs/ocfs2/super.c:416
sync_filesystem+0x1a0/0x218 fs/sync.c:66
generic_shutdown_super+0x70/0x2b8 fs/super.c:621
kill_block_super+0x44/0x90 fs/super.c:1729
deactivate_locked_super+0xc4/0x12c fs/super.c:473
deactivate_super+0xe0/0x100 fs/super.c:506
cleanup_mnt+0x31c/0x3ac fs/namespace.c:1318
__cleanup_mnt+0x20/0x30 fs/namespace.c:1325
task_work_run+0x1dc/0x260 kernel/task_work.c:227
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop+0xfc/0x178 kernel/entry/common.c:43
exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
arm64_exit_to_user_mode arch/arm64/kernel/entry-common.c:81 [inline]
el0_svc+0x170/0x254 arch/arm64/kernel/entry-common.c:725
el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743
el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
Showing all locks held in the system:
1 lock held by kthreadd/2:
1 lock held by kworker/R-kvfre/6:
3 locks held by kworker/u8:0/12:
3 locks held by kworker/u8:1/15:
1 lock held by khungtaskd/32:
#0: ffff80008f79b760 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330
1 lock held by kworker/R-kbloc/38:
3 locks held by kworker/u8:2/41:
#0: ffff0000c0031948 ((wq_completion)events_unbound#2){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3237
#1: ffff8000990e7be0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3237
#2: ffff800092888228 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
3 locks held by kworker/u8:3/42:
6 locks held by kworker/u9:0/53:
#0: ffff0000c9b9e148 ((wq_completion)hci1){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3237
#1: ffff8000991f7be0 ((work_completion)(&hdev->cmd_sync_work)
){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3237
#2: ffff0000c8d74dc8 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x184/0x33c net/bluetooth/hci_sync.c:331
#3: ffff0000c8d740b8 (&hdev->lock){+.+.}-{4:4}, at: hci_abort_conn_sync+0x1d4/0xbb8 net/bluetooth/hci_sync.c:5684
#4: ffff8000929f3448 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:2104 [inline]
#4: ffff8000929f3448 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_conn_failed+0x13c/0x318 net/bluetooth/hci_conn.c:1324
#5: ffff0000cca65b38 (&conn->lock#2){+.+.}-{4:4}, at: l2cap_conn_del+0x74/0x5f0 net/bluetooth/l2cap_core.c:1763
2 locks held by kworker/0:1H/82:
#0: ffff0000c1d67548 ((wq_completion)kblockd){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3237
#1: ffff800099347be0 ((work_completion)(&q->timeout_work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3237
3 locks held by kworker/u8:4/723:
3 locks held by kworker/u8:5/780:
3 locks held by kworker/u8:6/1520:
5 locks held by kworker/1:2/1828:
3 locks held by kworker/u8:7/2054:
4 locks held by kworker/0:2/3980:
#0: ffff0000c0029948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3237
#1: ffff80009f057be0 (reg_work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3237
#2: ffff800092888228 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
#3: ffff0000f82b8788 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: class_wiphy_constructor include/net/cfg80211.h:6358 [inline]
#3: ffff0000f82b8788 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: reg_process_self_managed_hints+0xc8/0x1dc net/wireless/reg.c:3179
3 locks held by kworker/R-ipv6_/4234:
#0: ffff0000d2d99948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3237
#1: ffff80009ea07bc0 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3237
#2: ffff800092888228 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
5 locks held by kworker/R-krdsd/4297:
6 locks held by kworker/R-bat_e/4310:
5 locks held by kworker/u9:1/6154:
#0: ffff0000cca60148 ((wq_completion)hci3){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3237
#1: ffff80009e2c7be0 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3237
#2: ffff0000d7f38dc8 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x184/0x33c net/bluetooth/hci_sync.c:331
#3: ffff0000d7f380b8 (&hdev->lock){+.+.}-{4:4}, at: hci_abort_conn_sync+0x1d4/0xbb8 net/bluetooth/hci_sync.c:5684
#4: ffff8000929f3448 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:2104 [inline]
#4: ffff8000929f3448 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_conn_failed+0x13c/0x318 net/bluetooth/hci_conn.c:1324
1 lock held by klogd/6179:
3 locks held by udevd/6190:
1 lock held by dhcpcd/6244:
1 lock held by dhcpcd/6245:
2 locks held by getty/6332:
#0: ffff0000d34b70a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
#1: ffff80009bb4b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa4 drivers/tty/n_tty.c:2222
1 lock held by syz-executor/6549:
4 locks held by kworker/0:3/6550:
5 locks held by kworker/u9:2/6552:
#0: ffff0000c6c1c948 ((wq_completion)hci2){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3237
#1: ffff80009dcc7be0 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3237
#2: ffff0000d9bd0dc8 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x184/0x33c net/bluetooth/hci_sync.c:331
#3: ffff0000d9bd00b8 (&hdev->lock){+.+.}-{4:4}, at: hci_abort_conn_sync+0x1d4/0xbb8 net/bluetooth/hci_sync.c:5684
#4: ffff8000929f3448 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:2104 [inline]
#4: ffff8000929f3448 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_conn_failed+0x13c/0x318 net/bluetooth/hci_conn.c:1324
5 locks held by kworker/u9:3/6555:
#0: ffff0000c6c1e948 ((wq_completion)hci4){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3237
#1: ffff80009dc87be0 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3237
#2: ffff0000d9bd4dc8 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x184/0x33c net/bluetooth/hci_sync.c:331
#3: ffff0000d9bd40b8 (&hdev->lock){+.+.}-{4:4}, at: hci_abort_conn_sync+0x1d4/0xbb8 net/bluetooth/hci_sync.c:5684
#4: ffff8000929f3448 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:2104 [inline]
#4: ffff8000929f3448 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_conn_failed+0x13c/0x318 net/bluetooth/hci_conn.c:1324
5 locks held by kworker/u9:4/6557:
#0: ffff0000c9b9c148 ((wq_completion)hci0){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3237
#1: ffff80009dc77be0 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3237
#2: ffff0000c8d70dc8 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x184/0x33c net/bluetooth/hci_sync.c:331
#3: ffff0000c8d700b8 (&hdev->lock){+.+.}-{4:4}, at: hci_abort_conn_sync+0x1d4/0xbb8 net/bluetooth/hci_sync.c:5684
#4: ffff8000929f3448 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:2104 [inline]
#4: ffff8000929f3448 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_conn_failed+0x13c/0x318 net/bluetooth/hci_conn.c:1324
1 lock held by syz-executor/6558:
#0: ffff0000d858c0e0 (&type->s_umount_key#53){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline]
#0: ffff0000d858c0e0 (&type->s_umount_key#53){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline]
#0: ffff0000d858c0e0 (&type->s_umount_key#53){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:505
1 lock held by syz-executor/6561:
2 locks held by kworker/1:4/6665:
1 lock held by syz.1.2/6681:
#0: ffff80008f7a1100 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x58/0x528 kernel/rcu/tree.c:3820
2 locks held by syz.4.11/6711:
#0: ffff0000d767a420 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499
#1: ffff0000dde576a0 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:1025 [inline]
#1: ffff0000dde576a0 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1ac/0x32c fs/namei.c:4226
1 lock held by kmmpd-loop4/6702:
#0: ffff0000d767a420 (sb_writers#3){.+.+}-{0:0}, at: kmmpd+0x2ec/0x9c4 fs/ext4/mmp.c:178
1 lock held by syz.0.14/6707:
#0: ffff80008f7a1100 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x58/0x528 kernel/rcu/tree.c:3820
3 locks held by kworker/u8:8/6714:
2 locks held by dhcpcd/6715:
3 locks held by kworker/u8:9/6716:
2 locks held by kworker/0:2H/6717:
#0: ffff0000c1d67548 ((wq_completion)kblockd){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3237
#1: ffff8000a3d37be0 ((work_completion)(&q->timeout_work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3237
3 locks held by kworker/u8:10/6718:
2 locks held by kworker/u8:11/6719:
2 locks held by syz-executor/6720:
1 lock held by dhcpcd/6721:
2 locks held by kworker/u8:12/6722:
#0: ffff0000c0031948 ((wq_completion)events_unbound#2){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3237
#1: ffff8000a33e7be0 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3237
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