detect/urilen: don't pass null pointer to pcre2 free

Bug #5228.
3 years ago · 2b5eeab7d4
parent 087151ddc3
commit 2b5eeab7d4
1 changed files with 2 additions and 1 deletions
--- a/src/detect-urilen.c
+++ b/src/detect-urilen.c
@ -207,7 +207,8 @@ static DetectUrilenData *DetectUrilenParse (const char *urilenstr)
        }
    }

-    pcre2_substring_free((PCRE2_UCHAR *)arg1);
+    if (arg1 != NULL)
+        pcre2_substring_free((PCRE2_UCHAR *)arg1);
    pcre2_substring_free((PCRE2_UCHAR *)arg2);
    if (arg3 != NULL)
        pcre2_substring_free((PCRE2_UCHAR *)arg3);