Bluetooth: hci4: command 0x0406 tx timeout
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.4:12613 blocked for more than 140 seconds.
      Not tainted 4.19.211-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.4  D24696 12613   8171 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:1016 [inline]
 __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078
 __blkdev_get+0x1d0/0x1480 fs/block_dev.c:1478
 blkdev_get+0xb0/0x940 fs/block_dev.c:1627
 blkdev_open+0x202/0x290 fs/block_dev.c:1788
 do_dentry_open+0x4aa/0x1160 fs/open.c:796
 do_last fs/namei.c:3421 [inline]
 path_openat+0x793/0x2df0 fs/namei.c:3537
 do_filp_open+0x18c/0x3f0 fs/namei.c:3567
 do_sys_open+0x3b3/0x520 fs/open.c:1085
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fd407d7c109
Code: Bad RIP value.
RSP: 002b:00007fd4066d0168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fd407e8f030 RCX: 00007fd407d7c109
RDX: 0000000000000018 RSI: 0000000020004280 RDI: ffffffffffffff9c
RBP: 00007fd407dd605d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcb6ef57df R14: 00007fd4066d0300 R15: 0000000000022000
INFO: task syz-executor.2:12621 blocked for more than 140 seconds.
      Not tainted 4.19.211-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2  D27040 12621   8168 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:1016 [inline]
 __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078
 __blkdev_get+0x1d0/0x1480 fs/block_dev.c:1478
 __blkdev_get+0x84d/0x1480 fs/block_dev.c:1535
 blkdev_get+0xb0/0x940 fs/block_dev.c:1627
 blkdev_open+0x202/0x290 fs/block_dev.c:1788
 do_dentry_open+0x4aa/0x1160 fs/open.c:796
 do_last fs/namei.c:3421 [inline]
 path_openat+0x793/0x2df0 fs/namei.c:3537
 do_filp_open+0x18c/0x3f0 fs/namei.c:3567
 do_sys_open+0x3b3/0x520 fs/open.c:1085
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f228d505109
Code: Bad RIP value.
RSP: 002b:00007f228be59168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f228d618030 RCX: 00007f228d505109
RDX: 0000000000000018 RSI: 0000000020004280 RDI: ffffffffffffff9c
RBP: 00007f228d55f05d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff031f4c8f R14: 00007f228be59300 R15: 0000000000022000
INFO: task syz-executor.1:12655 blocked for more than 140 seconds.
      Not tainted 4.19.211-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.1  D27616 12655   8172 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:1016 [inline]
 __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078
 __blkdev_get+0x1d0/0x1480 fs/block_dev.c:1478
 blkdev_get+0xb0/0x940 fs/block_dev.c:1627
 blkdev_open+0x202/0x290 fs/block_dev.c:1788
 do_dentry_open+0x4aa/0x1160 fs/open.c:796
 do_last fs/namei.c:3421 [inline]
 path_openat+0x793/0x2df0 fs/namei.c:3537
 do_filp_open+0x18c/0x3f0 fs/namei.c:3567
 do_sys_open+0x3b3/0x520 fs/open.c:1085
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f934f63b109
Code: Bad RIP value.
RSP: 002b:00007f934df8f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f934f74e030 RCX: 00007f934f63b109
RDX: 0000000000000018 RSI: 0000000020004280 RDI: ffffffffffffff9c
RBP: 00007f934f69505d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc8fc6b19f R14: 00007f934df8f300 R15: 0000000000022000

Showing all locks held in the system:
1 lock held by khungtaskd/1572:
 #0: 00000000d9b5e884 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441
1 lock held by in:imklog/7836:
2 locks held by agetty/8061:
 #0: 0000000055288479 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272
 #1: 00000000cbd97ff0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x217/0x1950 drivers/tty/n_tty.c:2154
1 lock held by syz-executor.4/12613:
 #0: 000000008ec4c31d (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x1d0/0x1480 fs/block_dev.c:1478
2 locks held by syz-executor.2/12621:
 #0: 000000008ec4c31d (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x1d0/0x1480 fs/block_dev.c:1478
 #1: 000000008ec4c31d (&bdev->bd_mutex/1){+.+.}, at: __blkdev_get+0x1d0/0x1480 fs/block_dev.c:1478
1 lock held by syz-executor.1/12655:
 #0: 000000008ec4c31d (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x1d0/0x1480 fs/block_dev.c:1478

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

NMI backtrace for cpu 0
CPU: 0 PID: 1572 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
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: 7837 Comm: rs:main Q:Reg Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
RIP: 0010:copy_user_enhanced_fast_string+0x15/0x20 arch/x86/lib/copy_user_64.S:185
Code: 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 0f 1f 80 00 00 00 00 0f 01 cb 83 fa 40 0f 82 70 ff ff ff 89 d1 f3 a4 31 c0 0f 01 ca <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 01 cb 83 fa 08 0f 82 95 00 00
RSP: 0018:ffff888098cd79d8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00000000000003e1 RCX: 0000000000000000
RDX: 00000000000003e1 RSI: 00007f939c00a5d1 RDI: ffff88805f850f1b
RBP: 00007f939c00a1f0 R08: 0000000000000001 R09: ffffed100bf0a1e3
R10: ffff88805f850f1a R11: 0000000000000000 R12: ffff88805f850b3a
R13: 00007f939c00a5d1 R14: 00007ffffffff000 R15: 0000000000000000
FS:  00007f93a9f85700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb78f3e1000 CR3: 0000000093731000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
 raw_copy_from_user arch/x86/include/asm/uaccess_64.h:71 [inline]
 copyin+0xcd/0xf0 lib/iov_iter.c:146
 iov_iter_copy_from_user_atomic+0x3b8/0xaa0 lib/iov_iter.c:929
 generic_perform_write+0x265/0x4d0 mm/filemap.c:3178
 __generic_file_write_iter+0x24b/0x610 mm/filemap.c:3295
 ext4_file_write_iter+0x2fe/0xf20 fs/ext4/file.c:272
 call_write_iter include/linux/fs.h:1821 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x51b/0x770 fs/read_write.c:487
 vfs_write+0x1f3/0x540 fs/read_write.c:549
 ksys_write+0x12b/0x2a0 fs/read_write.c:599
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f93ac9c91cd
Code: c2 20 00 00 75 10 b8 01 00 00 00 0f 05 48 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ae fc ff ff 48 89 04 24 b8 01 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 f7 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007f93a9f84590 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f939c00a1f0 RCX: 00007f93ac9c91cd
RDX: 00000000000003e1 RSI: 00007f939c00a1f0 RDI: 0000000000000008
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f939c009f70
R13: 00007f93a9f845b0 R14: 0000559f006e37c0 R15: 00000000000003e1
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	f3 48 a5             	rep movsq %ds:(%rsi),%es:(%rdi)
   3:	89 d1                	mov    %edx,%ecx
   5:	f3 a4                	rep movsb %ds:(%rsi),%es:(%rdi)
   7:	31 c0                	xor    %eax,%eax
   9:	0f 01 ca             	clac
   c:	c3                   	retq
   d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  14:	0f 01 cb             	stac
  17:	83 fa 40             	cmp    $0x40,%edx
  1a:	0f 82 70 ff ff ff    	jb     0xffffff90
  20:	89 d1                	mov    %edx,%ecx
  22:	f3 a4                	rep movsb %ds:(%rsi),%es:(%rdi)
  24:	31 c0                	xor    %eax,%eax
  26:	0f 01 ca             	clac
* 29:	c3                   	retq <-- trapping instruction
  2a:	66 2e 0f 1f 84 00 00 	nopw   %cs:0x0(%rax,%rax,1)
  31:	00 00 00
  34:	0f 01 cb             	stac
  37:	83 fa 08             	cmp    $0x8,%edx
  3a:	0f                   	.byte 0xf
  3b:	82                   	(bad)
  3c:	95                   	xchg   %eax,%ebp