IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
8021q: adding VLAN 0 to HW filter on device batadv0
BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD a33cb067 P4D a33cb067 PUD 947d0067 PMD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 8879 Comm: syz-executor710 Not tainted 5.4.0-rc1+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffff8880868cf828 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88808daa31c0 RCX: 1ffff11011b546cc
RDX: 0000000000000002 RSI: 0000000000000000 RDI: ffff8880a6eb0b00
RBP: ffff8880868cf860 R08: ffff8880a5e60540 R09: ffffed1011b54681
R10: ffffed1011b54680 R11: ffff88808daa3407 R12: 0000000000000002
R13: 0000000000000304 R14: ffff8880a6eb0b00 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:0000000008583840
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000008e839000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 xsk_poll+0x1e7/0x5a0 net/xdp/xsk.c:430
 sock_poll+0x15e/0x480 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+0x63c/0xdd0 fs/select.c:1001
 __do_compat_sys_ppoll_time32 fs/select.c:1393 [inline]
 __se_compat_sys_ppoll_time32 fs/select.c:1373 [inline]
 __ia32_compat_sys_ppoll_time32+0x257/0x2d0 fs/select.c:1373
 do_syscall_32_irqs_on arch/x86/entry/common.c:333 [inline]
 do_fast_syscall_32+0x27b/0xdb3 arch/x86/entry/common.c:404
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7f54a29
Code: b8 80 96 98 00 eb cc 8b 04 24 c3 8b 1c 24 c3 8b 34 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000ffcff69c EFLAGS: 00000217 ORIG_RAX: 0000000000000135
RAX: ffffffffffffffda RBX: 0000000020000040 RCX: 0000000000000006
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000020000100 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
CR2: 0000000000000000
---[ end trace 7f4e6b0b65d150f2 ]---
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffff8880868cf828 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88808daa31c0 RCX: 1ffff11011b546cc
RDX: 0000000000000002 RSI: 0000000000000000 RDI: ffff8880a6eb0b00
RBP: ffff8880868cf860 R08: ffff8880a5e60540 R09: ffffed1011b54681
R10: ffffed1011b54680 R11: ffff88808daa3407 R12: 0000000000000002
R13: 0000000000000304 R14: ffff8880a6eb0b00 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:0000000008583840
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 000000008e839000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400