general protection fault, probably for non-canonical address 0xdffffc000000011d: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x00000000000008e8-0x00000000000008ef]
CPU: 1 PID: 23471 Comm: syz-executor.2 Not tainted 6.5.0-syzkaller-11275-gdb906f0ca6bb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:io_sqpoll_wq_cpu_affinity+0x8c/0xe0 io_uring/sqpoll.c:433
Code: 48 c1 ea 03 80 3c 02 00 75 64 4c 8b a3 a8 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 e8 08 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 37 49 8b bc 24 e8 08 00 00 48 89 ee e8 8e ac 02 00
RSP: 0018:ffffc90003a3fe00 EFLAGS: 00010216

RAX: dffffc0000000000 RBX: ffff8880568f7000 RCX: 0000000000000000
RDX: 000000000000011d RSI: ffffffff841de22e RDI: 00000000000008e8
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed100ad1ee02
R10: ffffc90003a3fde8 R11: ffffffff8a60008b R12: 0000000000000000
R13: 0000000000000012 R14: 0000000000000012 R15: 0000000000000000
FS:  00007f6df8f186c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff230effac0 CR3: 00000000162ba000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 __io_register_iowq_aff io_uring/io_uring.c:4207 [inline]
 __io_register_iowq_aff+0xa7/0xe0 io_uring/io_uring.c:4198
 io_unregister_iowq_aff io_uring/io_uring.c:4247 [inline]
 __io_uring_register io_uring/io_uring.c:4453 [inline]
 __do_sys_io_uring_register+0x1349/0x2250 io_uring/io_uring.c:4539
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6df827cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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:00007f6df8f180c8 EFLAGS: 00000246
 ORIG_RAX: 00000000000001ab
RAX: ffffffffffffffda RBX: 00007f6df839c050 RCX: 00007f6df827cae9
RDX: 0000000000000000 RSI: 0000000000000012 RDI: 0000000000000004
RBP: 00007f6df82c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f6df839c050 R15: 00007ffe74eca068
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:io_sqpoll_wq_cpu_affinity+0x8c/0xe0 io_uring/sqpoll.c:433
Code: 48 c1 ea 03 80 3c 02 00 75 64 4c 8b a3 a8 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 e8 08 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 37 49 8b bc 24 e8 08 00 00 48 89 ee e8 8e ac 02 00
RSP: 0018:ffffc90003a3fe00 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: ffff8880568f7000 RCX: 0000000000000000
RDX: 000000000000011d RSI: ffffffff841de22e RDI: 00000000000008e8
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed100ad1ee02
R10: ffffc90003a3fde8 R11: ffffffff8a60008b R12: 0000000000000000
R13: 0000000000000012 R14: 0000000000000012 R15: 0000000000000000
FS:  00007f6df8f186c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4ab2f75198 CR3: 00000000162ba000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess):
   0:	48 c1 ea 03          	shr    $0x3,%rdx
   4:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
   8:	75 64                	jne    0x6e
   a:	4c 8b a3 a8 00 00 00 	mov    0xa8(%rbx),%r12
  11:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  18:	fc ff df
  1b:	49 8d bc 24 e8 08 00 	lea    0x8e8(%r12),%rdi
  22:	00
  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:	75 37                	jne    0x67
  30:	49 8b bc 24 e8 08 00 	mov    0x8e8(%r12),%rdi
  37:	00
  38:	48 89 ee             	mov    %rbp,%rsi
  3b:	e8 8e ac 02 00       	call   0x2acce