general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 PID: 19 Comm: ksoftirqd/1 Not tainted 5.15.0-rc6-next-20211019-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:blk_mq_free_request+0x16d/0x5d0 block/blk-mq.c:589
Code: 48 8b 9d d8 00 00 00 48 85 db 0f 84 7c 02 00 00 e8 48 3d b3 fd 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 34 04 00 00 48 8b 7b 08 e8 90 97 fe ff 4c 89 fa
RSP: 0018:ffffc90000d97b88 EFLAGS: 00010003
RAX: dffffc0000000000 RBX: 0000000000000007 RCX: 0000000000000100
RDX: 0000000000000001 RSI: ffffffff83c437a8 RDI: 000000000000000f
RBP: ffff88801d0e1c00 R08: 0000000000000001 R09: ffff88801ce768bf
R10: ffffffff83ce54c3 R11: 0000000000000000 R12: ffff88801b080000
R13: ffff88801d0e1c1c R14: ffff88801b098000 R15: ffff88801d0e1cd8
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000560dbef88d18 CR3: 0000000021a7e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __blk_mq_end_request+0x339/0x580 block/blk-mq.c:782
 blk_flush_complete_seq+0x561/0x1040 block/blk-flush.c:204
 flush_end_io+0x76e/0xbf0 block/blk-flush.c:259
 __blk_mq_end_request+0x123/0x580 block/blk-mq.c:780
 scsi_end_request+0x485/0x980 drivers/scsi/scsi_lib.c:577
 scsi_io_completion+0x24f/0x1650 drivers/scsi/scsi_lib.c:939
 scsi_complete+0x129/0x3b0 drivers/scsi/scsi_lib.c:1433
 blk_complete_reqs+0xad/0xe0 block/blk-mq.c:852
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558
 run_ksoftirqd kernel/softirq.c:921 [inline]
 run_ksoftirqd+0x2d/0x60 kernel/softirq.c:913
 smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164
 kthread+0x405/0x4f0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 2e33d1036531b94a ]---
RIP: 0010:blk_mq_free_request+0x16d/0x5d0 block/blk-mq.c:589
Code: 48 8b 9d d8 00 00 00 48 85 db 0f 84 7c 02 00 00 e8 48 3d b3 fd 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 34 04 00 00 48 8b 7b 08 e8 90 97 fe ff 4c 89 fa
RSP: 0018:ffffc90000d97b88 EFLAGS: 00010003
RAX: dffffc0000000000 RBX: 0000000000000007 RCX: 0000000000000100
RDX: 0000000000000001 RSI: ffffffff83c437a8 RDI: 000000000000000f
RBP: ffff88801d0e1c00 R08: 0000000000000001 R09: ffff88801ce768bf
R10: ffffffff83ce54c3 R11: 0000000000000000 R12: ffff88801b080000
R13: ffff88801d0e1c1c R14: ffff88801b098000 R15: ffff88801d0e1cd8
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000560dbef88d18 CR3: 0000000021a7e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	48 8b 9d d8 00 00 00 	mov    0xd8(%rbp),%rbx
   7:	48 85 db             	test   %rbx,%rbx
   a:	0f 84 7c 02 00 00    	je     0x28c
  10:	e8 48 3d b3 fd       	callq  0xfdb33d5d
  15:	48 8d 7b 08          	lea    0x8(%rbx),%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 34 04 00 00    	jne    0x468
  34:	48 8b 7b 08          	mov    0x8(%rbx),%rdi
  38:	e8 90 97 fe ff       	callq  0xfffe97cd
  3d:	4c 89 fa             	mov    %r15,%rdx