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BUG: KASAN: null-ptr-deref in memcpy include/linux/string.h:399 [inline]
BUG: KASAN: null-ptr-deref in llcp_sock_getname+0x358/0x540 net/nfc/llcp_sock.c:519
Read of size 57 at addr 0000000000000000 by task syz-executor.5/15986

CPU: 0 PID: 15986 Comm: syz-executor.5 Not tainted 5.10.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 __kasan_report mm/kasan/report.c:549 [inline]
 kasan_report.cold+0x5/0x37 mm/kasan/report.c:562
 check_memory_region_inline mm/kasan/generic.c:186 [inline]
 check_memory_region+0x13d/0x180 mm/kasan/generic.c:192
 memcpy+0x20/0x60 mm/kasan/common.c:105
 memcpy include/linux/string.h:399 [inline]
 llcp_sock_getname+0x358/0x540 net/nfc/llcp_sock.c:519
 __sys_getsockname+0x108/0x1f0 net/socket.c:1880
 __do_sys_getsockname net/socket.c:1895 [inline]
 __se_sys_getsockname net/socket.c:1892 [inline]
 __x64_sys_getsockname+0x6f/0xb0 net/socket.c:1892
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45deb9
Code: 0d b4 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f3bc9f87c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000033
RAX: ffffffffffffffda RBX: 0000000000004780 RCX: 000000000045deb9
RDX: 00000000200004c0 RSI: 0000000020000440 RDI: 0000000000000004
RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffc58fdd95f R14: 00007f3bc9f889c0 R15: 000000000118bf2c
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