general protection fault, probably for non-canonical address 0xdffffc0000000023: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f]
CPU: 0 PID: 12824 Comm: syz-executor.2 Not tainted 5.14.0-rc5-next-20210813-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:workqueue_sysfs_unregister kernel/workqueue.c:5731 [inline]
RIP: 0010:destroy_workqueue+0x2e/0x800 kernel/workqueue.c:4385
Code: 49 89 fe 41 55 41 54 55 53 48 83 ec 08 e8 aa 7f 29 00 49 8d be 18 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 2e 07 00 00 49 8b 9e 18 01 00 00 48 85 db 74 19
RSP: 0018:ffffc90004277a98 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: ffffc9000dc3e000
RDX: 0000000000000023 RSI: ffffffff814c51b6 RDI: 0000000000000118
RBP: ffff88808cc95340 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff81a3c3b8 R11: 0000000000000000 R12: ffff88808cc94000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fc8f04e7700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000401068 CR3: 000000006f38c000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 hci_release_dev+0x125/0xb70 net/bluetooth/hci_core.c:4055
 bt_host_release+0x15/0x20 net/bluetooth/hci_sysfs.c:86
 device_release+0x9f/0x240 drivers/base/core.c:2195
 kobject_cleanup lib/kobject.c:705 [inline]
 kobject_release lib/kobject.c:736 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1c8/0x540 lib/kobject.c:753
 put_device+0x1b/0x30 drivers/base/core.c:3466
 hci_uart_tty_close+0x1e4/0x2a0 drivers/bluetooth/hci_ldisc.c:546
 tty_ldisc_close+0x110/0x190 drivers/tty/tty_ldisc.c:474
 tty_ldisc_kill+0x94/0x150 drivers/tty/tty_ldisc.c:629
 tty_ldisc_hangup+0x30b/0x680 drivers/tty/tty_ldisc.c:749
 __tty_hangup.part.0+0x40a/0x830 drivers/tty/tty_io.c:639
 __tty_hangup drivers/tty/tty_io.c:594 [inline]
 tty_vhangup drivers/tty/tty_io.c:711 [inline]
 tty_ioctl+0xf6a/0x1600 drivers/tty/tty_io.c:2745
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665e9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc8f04e7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 0000000000000000 RSI: 0000000000005437 RDI: 0000000000000003
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007fff8749853f R14: 00007fc8f04e7300 R15: 0000000000022000
Modules linked in:
---[ end trace ec6b4bd4326059a5 ]---
RIP: 0010:workqueue_sysfs_unregister kernel/workqueue.c:5731 [inline]
RIP: 0010:destroy_workqueue+0x2e/0x800 kernel/workqueue.c:4385
Code: 49 89 fe 41 55 41 54 55 53 48 83 ec 08 e8 aa 7f 29 00 49 8d be 18 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 2e 07 00 00 49 8b 9e 18 01 00 00 48 85 db 74 19
RSP: 0018:ffffc90004277a98 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: ffffc9000dc3e000
RDX: 0000000000000023 RSI: ffffffff814c51b6 RDI: 0000000000000118
RBP: ffff88808cc95340 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff81a3c3b8 R11: 0000000000000000 R12: ffff88808cc94000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fc8f04e7700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000568000 CR3: 000000006f38c000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	49 89 fe             	mov    %rdi,%r14
   3:	41 55                	push   %r13
   5:	41 54                	push   %r12
   7:	55                   	push   %rbp
   8:	53                   	push   %rbx
   9:	48 83 ec 08          	sub    $0x8,%rsp
   d:	e8 aa 7f 29 00       	callq  0x297fbc
  12:	49 8d be 18 01 00 00 	lea    0x118(%r14),%rdi
  19:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  20:	fc ff df 
  23:	48 89 fa             	mov    %rdi,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
  2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 2e 07 00 00    	jne    0x762
  34:	49 8b 9e 18 01 00 00 	mov    0x118(%r14),%rbx
  3b:	48 85 db             	test   %rbx,%rbx
  3e:	74 19                	je     0x59