LibC: Fix strncpy() overflow in gethostbyname()

akimdi · Apr 13, 2020 · c1607dc · c1607dc
1 parent 038fdc2
commit c1607dc
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Libraries/LibC/netdb.cpp b/Libraries/LibC/netdb.cpp
@@ -122,7 +122,7 @@ hostent* gethostbyname(const char* name)
  if (rc <= 0)
  return nullptr;
 
- strncpy(__gethostbyname_name_buffer, name, strlen(name));
+ strncpy(__gethostbyname_name_buffer, name, sizeof(__gethostbyaddr_name_buffer) - 1);
 
  __gethostbyname_buffer.h_name = __gethostbyname_name_buffer;
  __gethostbyname_buffer.h_aliases = nullptr;