loop1: detected capacity change from 0 to 8
BUG: unable to handle page fault for address: ffffed108122b950
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 23ffef067 P4D 23ffef067 PUD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 11930 Comm: syz-executor.1 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__blk_mq_alloc_requests_batch block/blk-mq.c:408 [inline]
RIP: 0010:__blk_mq_alloc_requests+0x4a7/0xb00 block/blk-mq.c:457
Code: b2 fd 48 8b 44 24 10 80 38 00 0f 85 a6 04 00 00 48 8b 44 24 08 45 89 ed 48 8b b0 88 00 00 00 4a 8d 1c ee 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 6c 04 00 00 44 8b ac 24 a0 00 00 00 48 8b 03
RSP: 0018:ffffc900023d6aa0 EFLAGS: 00010a06
RAX: 1ffff1108122b950 RBX: ffff88840915ca80 RCX: ffffc90014fe2000
RDX: 0000000000040000 RSI: ffff88801ada4000 RDI: 0000000000000003
RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff83c46d51 R11: 0000000000000000 R12: 0000000000000000
R13: 000000007dc77150 R14: dffffc0000000000 R15: ffffc900023d6c38
FS:  00007f70ee2ac700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed108122b950 CR3: 000000003c18a000 CR4: 00000000003506f0
Call Trace:
 blk_mq_submit_bio+0xdac/0x1b40 block/blk-mq.c:2531
 __submit_bio+0x794/0x8e0 block/blk-core.c:873
 __submit_bio_noacct_mq block/blk-core.c:951 [inline]
 submit_bio_noacct block/blk-core.c:977 [inline]
 submit_bio_noacct+0x6c9/0x8a0 block/blk-core.c:966
 submit_bio block/blk-core.c:1038 [inline]
 submit_bio+0x1ea/0x430 block/blk-core.c:996
 mpage_bio_submit fs/mpage.c:66 [inline]
 mpage_readahead+0x589/0x750 fs/mpage.c:393
 read_pages+0x1e4/0xfa0 mm/readahead.c:129
 page_cache_ra_unbounded+0x64b/0x940 mm/readahead.c:238
 do_page_cache_ra mm/readahead.c:268 [inline]
 ondemand_readahead+0x594/0x1090 mm/readahead.c:551
 page_cache_sync_ra+0x1cb/0x200 mm/readahead.c:579
 page_cache_sync_readahead include/linux/pagemap.h:980 [inline]
 filemap_get_pages+0x2b2/0x1be0 mm/filemap.c:2541
 filemap_read+0x2ca/0xe40 mm/filemap.c:2624
 generic_file_read_iter+0x397/0x4f0 mm/filemap.c:2775
 blkdev_read_iter+0x177/0x200 block/fops.c:583
 call_read_iter include/linux/fs.h:2155 [inline]
 io_iter_do_read fs/io_uring.c:3428 [inline]
 io_read+0x33c/0xff0 fs/io_uring.c:3485
 io_issue_sqe+0x697/0x69b0 fs/io_uring.c:6591
 __io_queue_sqe fs/io_uring.c:6938 [inline]
 io_queue_sqe fs/io_uring.c:6980 [inline]
 io_submit_sqe fs/io_uring.c:7176 [inline]
 io_submit_sqes+0x1108/0x82b0 fs/io_uring.c:7282
 __do_sys_io_uring_enter+0xf6e/0x1f50 fs/io_uring.c:9988
 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: 0033:0x7f70f0d36ae9
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:00007f70ee2ac188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: ffffffffffffffda RBX: 00007f70f0e49f60 RCX: 00007f70f0d36ae9
RDX: 0000000000000000 RSI: 00000000000002ff RDI: 0000000000000003
RBP: 00007f70f0d90f25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd10b8a6ff R14: 00007f70ee2ac300 R15: 0000000000022000
Modules linked in:
CR2: ffffed108122b950
---[ end trace d0cd6c9110d05300 ]---
RIP: 0010:__blk_mq_alloc_requests_batch block/blk-mq.c:408 [inline]
RIP: 0010:__blk_mq_alloc_requests+0x4a7/0xb00 block/blk-mq.c:457
Code: b2 fd 48 8b 44 24 10 80 38 00 0f 85 a6 04 00 00 48 8b 44 24 08 45 89 ed 48 8b b0 88 00 00 00 4a 8d 1c ee 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 6c 04 00 00 44 8b ac 24 a0 00 00 00 48 8b 03
RSP: 0018:ffffc900023d6aa0 EFLAGS: 00010a06
RAX: 1ffff1108122b950 RBX: ffff88840915ca80 RCX: ffffc90014fe2000
RDX: 0000000000040000 RSI: ffff88801ada4000 RDI: 0000000000000003
RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff83c46d51 R11: 0000000000000000 R12: 0000000000000000
R13: 000000007dc77150 R14: dffffc0000000000 R15: ffffc900023d6c38
FS:  00007f70ee2ac700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed108122b950 CR3: 000000003c18a000 CR4: 00000000003506f0
----------------
Code disassembly (best guess):
   0:	b2 fd                	mov    $0xfd,%dl
   2:	48 8b 44 24 10       	mov    0x10(%rsp),%rax
   7:	80 38 00             	cmpb   $0x0,(%rax)
   a:	0f 85 a6 04 00 00    	jne    0x4b6
  10:	48 8b 44 24 08       	mov    0x8(%rsp),%rax
  15:	45 89 ed             	mov    %r13d,%r13d
  18:	48 8b b0 88 00 00 00 	mov    0x88(%rax),%rsi
  1f:	4a 8d 1c ee          	lea    (%rsi,%r13,8),%rbx
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1) <-- trapping instruction
  2f:	0f 85 6c 04 00 00    	jne    0x4a1
  35:	44 8b ac 24 a0 00 00 	mov    0xa0(%rsp),%r13d
  3c:	00
  3d:	48 8b 03             	mov    (%rbx),%rax