fix: memory/null safety bugs — issues #74, #72, #69, #64, #60, #50, #49, #65

2026-07-20 18:44:10 +02:00
parent 504a3a4d4f
commit 4dbb2b4f8b
9 changed files with 144 additions and 18 deletions
@@ -3,7 +3,9 @@
 #include "stdlib.h"

 Data* data_create_empty(size_t data_size) {
-  void* data = malloc(data_size);
+  /* malloc(0) is UB; allocate at least 1 byte but preserve requested size */
+  size_t alloc_size = data_size > 0 ? data_size : 1;
+  void* data = malloc(alloc_size);
  if (data == NULL) {
    log_message(LOG_LEVEL_ERROR, "Could not allocate memory for empty data");
    return NULL;