general protection fault, probably for non-canonical address 0xdffffc00000000b4: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x00000000000005a0-0x00000000000005a7]
CPU: 1 PID: 16217 Comm: syz-executor.4 Not tainted 5.18.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:bdev_get_queue include/linux/blkdev.h:886 [inline]
RIP: 0010:bio_poll+0x50/0x290 block/blk-core.c:941
Code: 49 8d 5c 24 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 df e7 c4 fd bd a0 05 00 00 48 03 2b 48 89 e8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 ef e8 c1 e7 c4 fd 48 8b 6d 00 49 8d 5c
RSP: 0018:ffffc900145ef5f0 EFLAGS: 00010206
RAX: 00000000000000b4 RBX: ffff88801c9a0508 RCX: 0000000000040000
RDX: ffffc9000b901000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 00000000000005a0 R08: dffffc0000000000 R09: ffffed100fb14b14
R10: ffffed100fb14b14 R11: 1ffff1100fb14b13 R12: ffff88801c9a0500
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f6278031700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2df27000 CR3: 0000000023a81000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __iomap_dio_rw+0x1a95/0x1ea0 fs/iomap/direct-io.c:658
 iomap_dio_rw+0x38/0x80 fs/iomap/direct-io.c:681
 ext4_dio_write_iter fs/ext4/file.c:566 [inline]
 ext4_file_write_iter+0x14fc/0x1960 fs/ext4/file.c:677
 do_iter_readv_writev+0x499/0x650
 do_iter_write+0x1f1/0x7a0 fs/read_write.c:852
 vfs_writev fs/read_write.c:925 [inline]
 do_pwritev+0x219/0x360 fs/read_write.c:1022
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f6276e890e9
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6278031168 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007f6276f9bf60 RCX: 00007f6276e890e9
RDX: 0000000000000001 RSI: 0000000020000240 RDI: 0000000000000004
RBP: 00007f6276ee308d R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000001400 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffefded054f R14: 00007f6278031300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:bdev_get_queue include/linux/blkdev.h:886 [inline]
RIP: 0010:bio_poll+0x50/0x290 block/blk-core.c:941
Code: 49 8d 5c 24 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 df e7 c4 fd bd a0 05 00 00 48 03 2b 48 89 e8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 ef e8 c1 e7 c4 fd 48 8b 6d 00 49 8d 5c
RSP: 0018:ffffc900145ef5f0 EFLAGS: 00010206
RAX: 00000000000000b4 RBX: ffff88801c9a0508 RCX: 0000000000040000
RDX: ffffc9000b901000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 00000000000005a0 R08: dffffc0000000000 R09: ffffed100fb14b14
R10: ffffed100fb14b14 R11: 1ffff1100fb14b13 R12: ffff88801c9a0500
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f6278031700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2df27000 CR3: 0000000023a81000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	49 8d 5c 24 08       	lea    0x8(%r12),%rbx
   5:	48 89 d8             	mov    %rbx,%rax
   8:	48 c1 e8 03          	shr    $0x3,%rax
   c:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
  11:	74 08                	je     0x1b
  13:	48 89 df             	mov    %rbx,%rdi
  16:	e8 df e7 c4 fd       	callq  0xfdc4e7fa
  1b:	bd a0 05 00 00       	mov    $0x5a0,%ebp
  20:	48 03 2b             	add    (%rbx),%rbp
  23:	48 89 e8             	mov    %rbp,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	48 89 ef             	mov    %rbp,%rdi
  34:	e8 c1 e7 c4 fd       	callq  0xfdc4e7fa
  39:	48 8b 6d 00          	mov    0x0(%rbp),%rbp
  3d:	49                   	rex.WB
  3e:	8d                   	.byte 0x8d
  3f:	5c                   	pop    %rsp