general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 18986 Comm: kworker/u4:11 Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Workqueue: btrfs-endio btrfs_end_bio_work
RIP: 0010:memcmp lib/string.c:765 [inline]
RIP: 0010:bcmp+0x61/0x1e0 lib/string.c:797
Code: 48 c1 e8 03 0f b6 04 10 84 c0 75 65 48 89 e8 48 c1 e8 03 0f b6 04 10 84 c0 75 7b 49 8b 34 24 49 8d 6d 07 4c 89 e8 48 c1 e8 03 <0f> b6 04 10 84 c0 0f 85 85 00 00 00 48 89 e8 48 c1 e8 03 0f b6 04
RSP: 0018:ffffc9000adaf840 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffc9000adafae0 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ac869b6f32d8bbdb RDI: ffffc9000adafae0
RBP: 0000000000000007 R08: ffffffff838962d4 R09: ffff888077b86000
R10: fffffbfff1c1b5f6 R11: 1ffffffff1c1b5f5 R12: ffffc9000adafae0
R13: 0000000000000000 R14: 0000000000000008 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe0f24ae850 CR3: 000000001e9ad000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 _Z6memcmpPKvU17pass_object_size0S0_U17pass_object_size0m include/linux/fortify-string.h:531 [inline]
 btrfs_check_sector_csum fs/btrfs/inode.c:3437 [inline]
 btrfs_check_data_csum+0x30f/0x860 fs/btrfs/inode.c:3474
 btrfs_check_read_dio_bio fs/btrfs/inode.c:7856 [inline]
 btrfs_end_dio_bio+0x33b/0x820 fs/btrfs/inode.c:7895
 process_one_work+0x877/0xdb0 kernel/workqueue.c:2289
 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:memcmp lib/string.c:765 [inline]
RIP: 0010:bcmp+0x61/0x1e0 lib/string.c:797
Code: 48 c1 e8 03 0f b6 04 10 84 c0 75 65 48 89 e8 48 c1 e8 03 0f b6 04 10 84 c0 75 7b 49 8b 34 24 49 8d 6d 07 4c 89 e8 48 c1 e8 03 <0f> b6 04 10 84 c0 0f 85 85 00 00 00 48 89 e8 48 c1 e8 03 0f b6 04
RSP: 0018:ffffc9000adaf840 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffc9000adafae0 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ac869b6f32d8bbdb RDI: ffffc9000adafae0
RBP: 0000000000000007 R08: ffffffff838962d4 R09: ffff888077b86000
R10: fffffbfff1c1b5f6 R11: 1ffffffff1c1b5f5 R12: ffffc9000adafae0
R13: 0000000000000000 R14: 0000000000000008 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f025000 CR3: 000000007b4bb000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	48 c1 e8 03          	shr    $0x3,%rax
   4:	0f b6 04 10          	movzbl (%rax,%rdx,1),%eax
   8:	84 c0                	test   %al,%al
   a:	75 65                	jne    0x71
   c:	48 89 e8             	mov    %rbp,%rax
   f:	48 c1 e8 03          	shr    $0x3,%rax
  13:	0f b6 04 10          	movzbl (%rax,%rdx,1),%eax
  17:	84 c0                	test   %al,%al
  19:	75 7b                	jne    0x96
  1b:	49 8b 34 24          	mov    (%r12),%rsi
  1f:	49 8d 6d 07          	lea    0x7(%r13),%rbp
  23:	4c 89 e8             	mov    %r13,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	0f b6 04 10          	movzbl (%rax,%rdx,1),%eax <-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	0f 85 85 00 00 00    	jne    0xbb
  36:	48 89 e8             	mov    %rbp,%rax
  39:	48 c1 e8 03          	shr    $0x3,%rax
  3d:	0f                   	.byte 0xf
  3e:	b6 04                	mov    $0x4,%dh