From: Victor Julien <vjulien@oisf.net>
Date: Tue, 5 Apr 2022 11:50:30 +0000 (+0200)
Subject: detect/urilen: don't pass null pointer to pcre2 free
X-Git-Tag: suricata-7.0.0-beta1~778
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F7208%2Fhead;p=thirdparty%2Fsuricata.git

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

Bug #5228.
---

diff --git a/src/detect-urilen.c b/src/detect-urilen.c
index feb61d2acb..a8a16554c8 100644
--- 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);