------------[ cut here ]------------
memcpy: detected field-spanning write (size 16) of single field "r->arp_ha.sa_data" at net/ipv4/arp.c:1128 (size 14)
WARNING: CPU: 1 PID: 3634 at net/ipv4/arp.c:1128 arp_req_get net/ipv4/arp.c:1128 [inline]
WARNING: CPU: 1 PID: 3634 at net/ipv4/arp.c:1128 arp_ioctl+0x7ef/0x840 net/ipv4/arp.c:1261
Modules linked in:
CPU: 1 PID: 3634 Comm: syz-executor168 Not tainted 6.1.0-rc8-syzkaller-00137-g01de1123322e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:arp_req_get net/ipv4/arp.c:1128 [inline]
RIP: 0010:arp_ioctl+0x7ef/0x840 net/ipv4/arp.c:1261
Code: fc ff ff e8 c3 9c 36 f9 b9 0e 00 00 00 4c 89 e6 48 c7 c2 20 d7 65 8b 48 c7 c7 00 d6 65 8b c6 05 09 ee f2 05 01 e8 30 94 5d 01 <0f> 0b e9 66 fc ff ff e8 95 9c 36 f9 41 be fa ff ff ff e8 5a 14 6f
RSP: 0018:ffffc900039cfa70 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff888022432828 RCX: 0000000000000000
RDX: ffff888026c63a80 RSI: ffffffff8165785c RDI: fffff52000739f40
RBP: 1ffff92000739f54 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000201 R11: 0000000000000000 R12: 0000000000000010
R13: ffff888022432800 R14: 0000000000000000 R15: ffff888022432924
FS:  00005555560f4300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000458e30 CR3: 000000007ca48000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inet_ioctl+0x2f9/0x380 net/ipv4/af_inet.c:957
 sock_do_ioctl+0xcc/0x230 net/socket.c:1169
 sock_ioctl+0x1f8/0x680 net/socket.c:1286
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __x64_sys_ioctl+0x197/0x210 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f86222fbc79
Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffcd6e2afc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f86222fbc79
RDX: 0000000020000500 RSI: 0000000000008954 RDI: 0000000000000004
RBP: 00007f86222bfe20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f86222bfeb0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>