BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 8fc74067 P4D 8fc74067 PUD 8fc75067 PMD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 7403 Comm: syz-executor.0 Not tainted 5.3.0-rc3+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffff88807aa578a8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8880982368c0 RCX: 1ffff11013046dac
RDX: 0000000000000002 RSI: 0000000000000000 RDI: ffff888085e46200
RBP: ffff88807aa578e0 R08: ffffed1013046d61 R09: ffffed1013046d61
R10: ffffed1013046d60 R11: ffff888098236b07 R12: ffff888085e46200
R13: 0000000000000304 R14: 0000000000000000 R15: ffff8880951bf0a0
FS:  00007fe078c49700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 0000000096ab5000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 xsk_poll+0x15a/0x4d0 net/xdp/xsk.c:387
 sock_poll+0x137/0x430 net/socket.c:1256
 vfs_poll include/linux/poll.h:90 [inline]
 do_pollfd fs/select.c:859 [inline]
 do_poll fs/select.c:907 [inline]
 do_sys_poll+0x4a7/0xc20 fs/select.c:1001
 __do_sys_ppoll fs/select.c:1101 [inline]
 __se_sys_ppoll fs/select.c:1081 [inline]
 __x64_sys_ppoll+0x1e1/0x2a0 fs/select.c:1081
 do_syscall_64+0xd0/0x540 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459a29
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:00007fe078c48c78 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000459a29
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000020000040
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe078c496d4
R13: 00000000004c691d R14: 00000000004dbbf8 R15: 00000000ffffffff
Modules linked in:
CR2: 0000000000000000
---[ end trace a401238f5cd54ec2 ]---
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffff88807aa578a8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8880982368c0 RCX: 1ffff11013046dac
RDX: 0000000000000002 RSI: 0000000000000000 RDI: ffff888085e46200
RBP: ffff88807aa578e0 R08: ffffed1013046d61 R09: ffffed1013046d61
R10: ffffed1013046d60 R11: ffff888098236b07 R12: ffff888085e46200
R13: 0000000000000304 R14: 0000000000000000 R15: ffff8880951bf0a0
FS:  00007fe078c49700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe078c06db8 CR3: 0000000096ab5000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400