general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047]
CPU: 0 PID: 18157 Comm: syz-executor.0 Not tainted 5.19.0-rc2-syzkaller-00050-g018ab4fabddd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:hlist_empty include/linux/list.h:876 [inline]
RIP: 0010:sk_head include/net/sock.h:653 [inline]
RIP: 0010:__inet_hash_connect+0x20b/0x1450 net/ipv4/inet_hashtables.c:866
Code: 0f 85 28 11 00 00 49 8b 9f a0 06 00 00 48 89 ef e8 da ac a2 01 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 40 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f0 10 00 00 4c 8b 63 40 4d 85 e4 74 0d e8 2d 00
RSP: 0018:ffffc9000cc674b8 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff815ed050
RDX: 0000000000000008 RSI: 0000000000000004 RDI: 0000000000000040
RBP: ffff888026add968 R08: 0000000000000001 R09: 0000000000000003
R10: fffff5200198ce89 R11: 0000000000000000 R12: ffff8880776b8000
R13: 0000000000009de2 R14: ffffffff91308960 R15: ffff888027a670c0
FS:  00007f7811028700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000202d4000 CR3: 0000000027f54000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 dccp_v4_connect+0xc5c/0x16f0 net/dccp/ipv4.c:108
 __inet_stream_connect+0x8cf/0xed0 net/ipv4/af_inet.c:660
 inet_stream_connect+0x53/0xa0 net/ipv4/af_inet.c:724
 __sys_connect_file+0x14f/0x190 net/socket.c:1979
 io_connect+0x15f/0x690 fs/io_uring.c:6767
 io_issue_sqe+0x342c/0x9750 fs/io_uring.c:8449
 io_queue_sqe fs/io_uring.c:8791 [inline]
 io_submit_sqe fs/io_uring.c:9055 [inline]
 io_submit_sqes+0x161d/0x8000 fs/io_uring.c:9166
 __do_sys_io_uring_enter+0x1112/0x2300 fs/io_uring.c:12098
 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+0x46/0xb0
RIP: 0033:0x7f780fe89109
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:00007f7811028168 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: ffffffffffffffda RBX: 00007f780ff9c030 RCX: 00007f780fe89109
RDX: 0000000000000000 RSI: 00000000000045f5 RDI: 0000000000000005
RBP: 00007f78110281d0 R08: 0000000000000000 R09: 0000000000000004
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f78104cfb1f R14: 00007f7811028300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:hlist_empty include/linux/list.h:876 [inline]
RIP: 0010:sk_head include/net/sock.h:653 [inline]
RIP: 0010:__inet_hash_connect+0x20b/0x1450 net/ipv4/inet_hashtables.c:866
Code: 0f 85 28 11 00 00 49 8b 9f a0 06 00 00 48 89 ef e8 da ac a2 01 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 40 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f0 10 00 00 4c 8b 63 40 4d 85 e4 74 0d e8 2d 00
RSP: 0018:ffffc9000cc674b8 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff815ed050
RDX: 0000000000000008 RSI: 0000000000000004 RDI: 0000000000000040
RBP: ffff888026add968 R08: 0000000000000001 R09: 0000000000000003
R10: fffff5200198ce89 R11: 0000000000000000 R12: ffff8880776b8000
R13: 0000000000009de2 R14: ffffffff91308960 R15: ffff888027a670c0
FS:  00007f7811028700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000202d4000 CR3: 0000000027f54000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	0f 85 28 11 00 00    	jne    0x112e
   6:	49 8b 9f a0 06 00 00 	mov    0x6a0(%r15),%rbx
   d:	48 89 ef             	mov    %rbp,%rdi
  10:	e8 da ac a2 01       	callq  0x1a2acef
  15:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  1c:	fc ff df
  1f:	48 8d 7b 40          	lea    0x40(%rbx),%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 f0 10 00 00    	jne    0x1124
  34:	4c 8b 63 40          	mov    0x40(%rbx),%r12
  38:	4d 85 e4             	test   %r12,%r12
  3b:	74 0d                	je     0x4a
  3d:	e8                   	.byte 0xe8
  3e:	2d                   	.byte 0x2d