BUG: unable to handle kernel paging request at fffffffec10cef50
IP: memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54
kobject: 'loop1' (ffff8880a49a00a0): kobject_uevent_env
PGD 766d067 P4D 766d067 PUD 0 
Oops: 0002 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 9909 Comm: syz-executor.4 Not tainted 4.14.139 #35
kobject: 'loop1' (ffff8880a49a00a0): fill_kobj_path: path = '/devices/virtual/block/loop1'
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888047aa6280 task.stack: ffff8881d6908000
RIP: 0010:memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54
RSP: 0018:ffff8881d690f278 EFLAGS: 00010246
RAX: fffffffec10cef50 RBX: fffffffff2b5df4e RCX: 0000000000000006
RDX: 0000000000000006 RSI: ffff88807d053af0 RDI: fffffffec10cef50
RBP: ffff8881d690f298 R08: 1fffffffd8219dea R09: fffffbffd8219deb
R10: fffffbffd8219dea R11: fffffffec10cef55 R12: 0000000000000006
R13: fffffffec10cef50 R14: ffff88807d053af0 R15: ffff88807d053ae8
FS:  00007f048ff53700(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffec10cef50 CR3: 00000001d5257000 CR4: 00000000001426f0
Call Trace:
 memcpy include/linux/string.h:347 [inline]
 dummy_set_vf_mac+0xdf/0x120 drivers/net/dummy.c:179
 do_setvfinfo net/core/rtnetlink.c:1772 [inline]
 do_setlink+0x1098/0x2d50 net/core/rtnetlink.c:2135
 rtnl_setlink+0x225/0x320 net/core/rtnetlink.c:2303
 rtnetlink_rcv_msg+0x3eb/0xb70 net/core/rtnetlink.c:4285
 netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432
 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4297
 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline]
 netlink_unicast+0x45d/0x640 net/netlink/af_netlink.c:1312
 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xce/0x110 net/socket.c:656
 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062
 __sys_sendmsg+0xb9/0x140 net/socket.c:2096
 SYSC_sendmsg net/socket.c:2107 [inline]
 SyS_sendmsg+0x2d/0x50 net/socket.c:2103
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459829
RSP: 002b:00007f048ff52c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459829
RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f048ff536d4
R13: 00000000004c7751 R14: 00000000004dcf60 R15: 00000000ffffffff
Code: 90 90 90 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 <f3> a4 c3 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38 
RIP: memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54 RSP: ffff8881d690f278
CR2: fffffffec10cef50
---[ end trace 0ecfc7445b8127d8 ]---