rr_read: Fix null pointer dereference

videolabs · Mar 19, 2020 · eab6fbb · eab6fbb
1 parent 8c098f6
commit eab6fbb
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/rr.c b/src/rr.c
@@ -449,6 +449,8 @@ rr_read(const uint8_t *ptr, size_t *n, const uint8_t *root, struct rr_entry *ent
 
         p = ptr = rr_read_RR(ptr, n, root, entry, ans);
         if (ans == 0) return ptr;
+        if (ptr == NULL)
+                return (NULL);
 
         for (size_t i = 0; i < rr_num; ++i) {
                 if (rrs[i].type == entry->type) {