BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 9a3bc067 P4D 9a3bc067 PUD a1a30067 PMD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 15232 Comm: syz-executor.2 Not tainted 5.3.0-next-20190919 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffff8880583dfcd8 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffffff89b31f80 RCX: ffffc9000a377000
RDX: 0000000000000000 RSI: ffff8880583dfd40 RDI: ffff888068f220c0
RBP: ffff8880583dfda8 R08: ffff888099c60558 R09: fffffbfff14ee346
R10: fffffbfff14ee345 R11: ffffffff8a771a2f R12: ffff888099c60080
R13: ffff888068f220c0 R14: 0000000000000000 R15: ffff8880583dfd40
FS:  00007f496a81f700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 0000000096cde000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rds_bind+0x423/0x800 net/rds/bind.c:247
 __sys_bind+0x239/0x290 net/socket.c:1648
 __do_sys_bind net/socket.c:1659 [inline]
 __se_sys_bind net/socket.c:1657 [inline]
 __x64_sys_bind+0x73/0xb0 net/socket.c:1657
 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4598e9
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f496a81ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004598e9
RDX: 0000000000000010 RSI: 0000000020000340 RDI: 0000000000000007
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f496a81f6d4
R13: 00000000004bfa2b R14: 00000000004d16c8 R15: 00000000ffffffff
Modules linked in:
CR2: 0000000000000000
---[ end trace d5936676a7834ae7 ]---
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffff8880583dfcd8 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffffff89b31f80 RCX: ffffc9000a377000
RDX: 0000000000000000 RSI: ffff8880583dfd40 RDI: ffff888068f220c0
RBP: ffff8880583dfda8 R08: ffff888099c60558 R09: fffffbfff14ee346
R10: fffffbfff14ee345 R11: ffffffff8a771a2f R12: ffff888099c60080
R13: ffff888068f220c0 R14: 0000000000000000 R15: ffff8880583dfd40
FS:  00007f496a81f700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d028000 CR3: 0000000096cde000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400