Fix crash in String when using nullptr (#10971) (#10972)

Fixes: #10971
2025-02-17 14:27:41 +01:00 · 2025-02-17 14:27:41 +01:00 · 758cbd097d
commit 758cbd097d
parent a7907cd07e
1 changed files with 2 additions and 1 deletions
--- a/cores/esp32/WString.cpp
+++ b/cores/esp32/WString.cpp
@ -290,7 +290,8 @@ String &String::operator=(StringSumHelper &&rval) {
 #endif

 String &String::operator=(const char *cstr) {
-  return copy(cstr, strlen(cstr));
+  const uint32_t length = cstr ? strlen(cstr) : 0u;
+  return copy(cstr, length);
 }

 /*********************************************/