BUG: kernel NULL pointer dereference, address: 00000000000000a0
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 8000000111fdf067 P4D 8000000111fdf067 PUD 111c0e067 PMD 0 
Oops: Oops: 0000 [#1] PREEMPT SMP PTI
CPU: 1 UID: 0 PID: 4371 Comm: syz.2.16 Not tainted 6.11.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:vsock_connectible_has_data+0x15/0x40 net/vmw_vsock/af_vsock.c:878
Code: 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 83 bf bc 03 00 00 05 48 8b 87 f8 04 00 00 75 13 <4c> 8b 98 a0 00 00 00 41 ff d3 66 90 89 c0 c3 cc cc cc cc 4c 8b 58
RSP: 0018:ffffc90001a1bb30 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888172380000 RCX: 0000000000000001
RDX: a192f5592f7165c9 RSI: ffffffff83d0df7b RDI: ffff888172380000
RBP: ffff88817cf29000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90001a1be08
R13: ffffffff82de9ef9 R14: ffff88817cf29000 R15: 0000000000000000
FS:  00007f3addf886c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000a0 CR3: 000000010238e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 vsock_has_data net/vmw_vsock/vsock_bpf.c:30 [inline]
 vsock_bpf_recvmsg+0xe2/0x4c0 net/vmw_vsock/vsock_bpf.c:87
 sock_recvmsg_nosec net/socket.c:1046 [inline]
 sock_recvmsg+0x9e/0xc0 net/socket.c:1068
 ____sys_recvmsg+0x112/0x1f0 net/socket.c:2816
 ___sys_recvmsg+0x202/0x2c0 net/socket.c:2858
 do_recvmmsg+0x19c/0x350 net/socket.c:2952
 __sys_recvmmsg net/socket.c:3031 [inline]
 __do_sys_recvmmsg net/socket.c:3054 [inline]
 __se_sys_recvmmsg net/socket.c:3047 [inline]
 __x64_sys_recvmmsg+0xad/0xe0 net/socket.c:3047
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x8d/0x190 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3add185d29
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3addf88038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f3add375fa0 RCX: 00007f3add185d29
RDX: 0000000000000001 RSI: 00000000200061c0 RDI: 0000000000000003
RBP: 00007f3add201b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000002000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3add375fa0 R15: 00007ffccf776998
 </TASK>
Modules linked in:
CR2: 00000000000000a0
---[ end trace 0000000000000000 ]---
RIP: 0010:vsock_connectible_has_data+0x15/0x40 net/vmw_vsock/af_vsock.c:878
Code: 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 83 bf bc 03 00 00 05 48 8b 87 f8 04 00 00 75 13 <4c> 8b 98 a0 00 00 00 41 ff d3 66 90 89 c0 c3 cc cc cc cc 4c 8b 58
RSP: 0018:ffffc90001a1bb30 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888172380000 RCX: 0000000000000001
RDX: a192f5592f7165c9 RSI: ffffffff83d0df7b RDI: ffff888172380000
RBP: ffff88817cf29000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90001a1be08
R13: ffffffff82de9ef9 R14: ffff88817cf29000 R15: 0000000000000000
FS:  00007f3addf886c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000a0 CR3: 000000010238e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	00 66 90             	add    %ah,-0x70(%rsi)
   5:	90                   	nop
   6:	90                   	nop
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	f3 0f 1e fa          	endbr64
  19:	66 83 bf bc 03 00 00 	cmpw   $0x5,0x3bc(%rdi)
  20:	05
  21:	48 8b 87 f8 04 00 00 	mov    0x4f8(%rdi),%rax
  28:	75 13                	jne    0x3d
* 2a:	4c 8b 98 a0 00 00 00 	mov    0xa0(%rax),%r11 <-- trapping instruction
  31:	41 ff d3             	call   *%r11
  34:	66 90                	xchg   %ax,%ax
  36:	89 c0                	mov    %eax,%eax
  38:	c3                   	ret
  39:	cc                   	int3
  3a:	cc                   	int3
  3b:	cc                   	int3
  3c:	cc                   	int3
  3d:	4c                   	rex.WR
  3e:	8b                   	.byte 0x8b
  3f:	58                   	pop    %rax