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: 3645 Comm: syz-executor.4 Not tainted 5.18.0-rc3-syzkaller-00049-ge233fe1aa028 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:bio_poll+0x53/0x2d0
Code: 48 c1 ea 03 80 3c 02 00 0f 85 4e 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 08 48 8d bd a0 05 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 1e 02 00 00 48 8d 7b 34 4c 8b bd a0 05 00 00 48
RSP: 0018:ffffc90003f7f6e8 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff888024cef780 RCX: 0000000000000000
RDX: 00000000000000b4 RSI: ffffffff83e34e28 RDI: 00000000000005a0
RBP: 0000000000000000 R08: 0000000000000001 R09: ffff888079249d1b
R10: ffffed100f2493a3 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88807fa17700 R15: ffff888024cef780
FS:  00007ff85478e6c0(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4db9cc8ba8 CR3: 000000007fa1a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __iomap_dio_rw+0x110b/0x1b00
 iomap_dio_rw+0x38/0x90
 ext4_file_write_iter+0x1366/0x1690
 do_iter_readv_writev+0x3c7/0x640
 do_iter_write+0x180/0x710
 vfs_writev+0x1d7/0x670
 do_pwritev+0x1b8/0x270
 __x64_sys_pwritev2+0xeb/0x150
 do_syscall_64+0x34/0xb0
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7ff853679929
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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff85478e0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007ff85378bf60 RCX: 00007ff853679929
RDX: 0000000000000001 RSI: 0000000020000240 RDI: 0000000000000004
RBP: 00007ff8536d5074 R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000001400 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007ff85378bf60 R15: 00007fffef88c4e8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:bio_poll+0x53/0x2d0
Code: 48 c1 ea 03 80 3c 02 00 0f 85 4e 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 08 48 8d bd a0 05 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 1e 02 00 00 48 8d 7b 34 4c 8b bd a0 05 00 00 48
RSP: 0018:ffffc90003f7f6e8 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff888024cef780 RCX: 0000000000000000
RDX: 00000000000000b4 RSI: ffffffff83e34e28 RDI: 00000000000005a0
RBP: 0000000000000000 R08: 0000000000000001 R09: ffff888079249d1b
R10: ffffed100f2493a3 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88807fa17700 R15: ffff888024cef780
FS:  00007ff85478e6c0(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4db9cc8ba8 CR3: 000000007fa1a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	48 c1 ea 03          	shr    $0x3,%rdx
   4:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
   8:	0f 85 4e 02 00 00    	jne    0x25c
   e:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  15:	fc ff df
  18:	48 8b 6b 08          	mov    0x8(%rbx),%rbp
  1c:	48 8d bd a0 05 00 00 	lea    0x5a0(%rbp),%rdi
  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 1e 02 00 00    	jne    0x252
  34:	48 8d 7b 34          	lea    0x34(%rbx),%rdi
  38:	4c 8b bd a0 05 00 00 	mov    0x5a0(%rbp),%r15
  3f:	48                   	rex.W
