==================================================================
BUG: KASAN: null-ptr-deref in memcpy include/linux/string.h:347 [inline]
BUG: KASAN: null-ptr-deref in llcp_sock_getname+0x37b/0x490 net/nfc/llcp_sock.c:532
Read of size 11 at addr           (null) by task syz-executor.3/29078

CPU: 1 PID: 29078 Comm: syz-executor.3 Not tainted 4.14.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x283 lib/dump_stack.c:58
 kasan_report_error mm/kasan/report.c:349 [inline]
 kasan_report mm/kasan/report.c:409 [inline]
 kasan_report.cold+0x127/0x2b9 mm/kasan/report.c:393
 memcpy+0x20/0x50 mm/kasan/kasan.c:302
 memcpy include/linux/string.h:347 [inline]
 llcp_sock_getname+0x37b/0x490 net/nfc/llcp_sock.c:532
 SYSC_getpeername net/socket.c:1715 [inline]
 SyS_getpeername+0x10a/0x220 net/socket.c:1699
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x45ca69
RSP: 002b:00007fa20b65cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000034
RAX: ffffffffffffffda RBX: 00000000004dd040 RCX: 000000000045ca69
RDX: 0000000020000080 RSI: 0000000020000000 RDI: 0000000000000007
RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000000fd R14: 00000000004c3a52 R15: 00007fa20b65d6d4
==================================================================
block nbd0: Attempted send on invalid socket
print_req_error: I/O error, dev nbd0, sector 0
XFS (nbd0): SB validate failed with error -5.
block nbd0: Attempted send on invalid socket
print_req_error: I/O error, dev nbd0, sector 0
XFS (nbd0): SB validate failed with error -5.
netlink: 28 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 20 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 28 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 20 bytes leftover after parsing attributes in process `syz-executor.2'.
block nbd0: Attempted send on invalid socket
print_req_error: I/O error, dev nbd0, sector 0
XFS (nbd0): SB validate failed with error -5.