block nbd5: shutting down sockets
ieee802154 phy0 wpan0: encryption failed: -22
ieee802154 phy1 wpan1: encryption failed: -22
ieee802154 phy0 wpan0: encryption failed: -22
ieee802154 phy1 wpan1: encryption failed: -22
INFO: task syz-executor.0:1462 blocked for more than 140 seconds.
      Not tainted 4.19.183-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0  D28560  1462   8118 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
 blk_mq_freeze_queue_wait+0x119/0x270 block/blk-mq.c:152
 nbd_add_socket+0x168/0x840 drivers/block/nbd.c:973
 __nbd_ioctl drivers/block/nbd.c:1320 [inline]
 nbd_ioctl+0x584/0xbe0 drivers/block/nbd.c:1387
 __blkdev_driver_ioctl block/ioctl.c:303 [inline]
 blkdev_ioctl+0x5cb/0x1a80 block/ioctl.c:601
 block_ioctl+0xe9/0x130 fs/block_dev.c:1906
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
 __do_sys_ioctl fs/ioctl.c:712 [inline]
 __se_sys_ioctl fs/ioctl.c:710 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x466459
Code: 44 24 18 00 00 00 00 48 8d 05 43 ba ff ff 48 89 44 24 08 48 8d 44 24 38 48 89 44 24 10 48 8d 44 24 30 48 89 44 24 18 48 8d 44 <24> 08 48 89 04 24 90 e8 5b 42 00 00 83 7c 24 30 00 7c 0a 48 8b 6c
RSP: 002b:00007feaa57ad188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459
RDX: 0000000000000004 RSI: 000000000000ab00 RDI: 0000000000000003
RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffdb6fbe40f R14: 00007feaa57ad300 R15: 0000000000022000
INFO: task syz-executor.0:1466 blocked for more than 140 seconds.
      Not tainted 4.19.183-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0  D29152  1466   8118 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619
 __mutex_lock_common kernel/locking/mutex.c:1002 [inline]
 __mutex_lock+0x647/0x1260 kernel/locking/mutex.c:1072
 nbd_ioctl+0x151/0xbe0 drivers/block/nbd.c:1380
 __blkdev_driver_ioctl block/ioctl.c:303 [inline]
 blkdev_ioctl+0x5cb/0x1a80 block/ioctl.c:601
 block_ioctl+0xe9/0x130 fs/block_dev.c:1906
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
 __do_sys_ioctl fs/ioctl.c:712 [inline]
 __se_sys_ioctl fs/ioctl.c:710 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x466459
Code: 44 24 18 00 00 00 00 48 8d 05 43 ba ff ff 48 89 44 24 08 48 8d 44 24 38 48 89 44 24 10 48 8d 44 24 30 48 89 44 24 18 48 8d 44 <24> 08 48 89 04 24 90 e8 5b 42 00 00 83 7c 24 30 00 7c 0a 48 8b 6c
RSP: 002b:00007feaa578c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056c008 RCX: 0000000000466459
RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c008
R13: 00007ffdb6fbe40f R14: 00007feaa578c300 R15: 0000000000022000
INFO: task syz-executor.0:1469 blocked for more than 140 seconds.
      Not tainted 4.19.183-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0  D29320  1469   8118 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619
 __mutex_lock_common kernel/locking/mutex.c:1002 [inline]
 __mutex_lock+0x647/0x1260 kernel/locking/mutex.c:1072
 nbd_ioctl+0x151/0xbe0 drivers/block/nbd.c:1380
 __blkdev_driver_ioctl block/ioctl.c:303 [inline]
 blkdev_ioctl+0x5cb/0x1a80 block/ioctl.c:601
 block_ioctl+0xe9/0x130 fs/block_dev.c:1906
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
 __do_sys_ioctl fs/ioctl.c:712 [inline]
 __se_sys_ioctl fs/ioctl.c:710 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x466459
Code: 44 24 18 00 00 00 00 48 8d 05 43 ba ff ff 48 89 44 24 08 48 8d 44 24 38 48 89 44 24 10 48 8d 44 24 30 48 89 44 24 18 48 8d 44 <24> 08 48 89 04 24 90 e8 5b 42 00 00 83 7c 24 30 00 7c 0a 48 8b 6c
RSP: 002b:00007feaa576b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056c0b0 RCX: 0000000000466459
RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c0b0
R13: 00007ffdb6fbe40f R14: 00007feaa576b300 R15: 0000000000022000
INFO: task syz-executor.0:1470 blocked for more than 140 seconds.
      Not tainted 4.19.183-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0  D29840  1470   8118 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619
 __mutex_lock_common kernel/locking/mutex.c:1002 [inline]
 __mutex_lock+0x647/0x1260 kernel/locking/mutex.c:1072
 nbd_ioctl+0x151/0xbe0 drivers/block/nbd.c:1380
 __blkdev_driver_ioctl block/ioctl.c:303 [inline]
 blkdev_ioctl+0x5cb/0x1a80 block/ioctl.c:601
 block_ioctl+0xe9/0x130 fs/block_dev.c:1906
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
 __do_sys_ioctl fs/ioctl.c:712 [inline]
 __se_sys_ioctl fs/ioctl.c:710 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x466459
Code: 44 24 18 00 00 00 00 48 8d 05 43 ba ff ff 48 89 44 24 08 48 8d 44 24 38 48 89 44 24 10 48 8d 44 24 30 48 89 44 24 18 48 8d 44 <24> 08 48 89 04 24 90 e8 5b 42 00 00 83 7c 24 30 00 7c 0a 48 8b 6c
RSP: 002b:00007feaa574a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056c158 RCX: 0000000000466459
RDX: 0000000000001d0d RSI: 000000000000ab07 RDI: 0000000000000003
RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c158
R13: 00007ffdb6fbe40f R14: 00007feaa574a300 R15: 0000000000022000

Showing all locks held in the system:
1 lock held by khungtaskd/1568:
 #0: 000000003b198b18 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4440
1 lock held by in:imklog/7815:
 #0: 0000000098245482 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767
1 lock held by syz-executor.0/1462:
 #0: 00000000734e35e8 (&nbd->config_lock){+.+.}, at: nbd_ioctl+0x151/0xbe0 drivers/block/nbd.c:1380
1 lock held by syz-executor.0/1466:
 #0: 00000000734e35e8 (&nbd->config_lock){+.+.}, at: nbd_ioctl+0x151/0xbe0 drivers/block/nbd.c:1380
1 lock held by syz-executor.0/1469:
 #0: 00000000734e35e8 (&nbd->config_lock){+.+.}, at: nbd_ioctl+0x151/0xbe0 drivers/block/nbd.c:1380
1 lock held by syz-executor.0/1470:
 #0: 00000000734e35e8 (&nbd->config_lock){+.+.}, at: nbd_ioctl+0x151/0xbe0 drivers/block/nbd.c:1380

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

NMI backtrace for cpu 0
CPU: 0 PID: 1568 Comm: khungtaskd Not tainted 4.19.183-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
 watchdog+0x991/0xe60 kernel/hung_task.c:287
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 10 Comm: rcu_preempt Not tainted 4.19.183-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:schedule_timeout+0x54d/0xfe0 kernel/time/timer.c:1828
Code: 00 00 00 00 fc ff df 49 01 c5 49 c7 45 00 00 00 00 00 41 c7 45 08 00 00 00 00 41 c7 45 14 00 00 00 00 48 8b 84 24 00 01 00 00 <65> 48 2b 04 25 28 00 00 00 0f 85 fd 08 00 00 48 81 c4 08 01 00 00
RSP: 0018:ffff8880b5a6fc48 EFLAGS: 00000286
RAX: 40a305466233a300 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff881673c0 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffffed1016b4df8e R14: ffff8880ba122b00 R15: 00000000ffffffff
FS:  0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f65ea99b000 CR3: 00000000a125c000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rcu_gp_kthread+0xdad/0x21c0 kernel/rcu/tree.c:2202
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415