From: Quentin Young <qlyoung@cumulusnetworks.com>
Date: Wed, 3 Aug 2016 19:49:02 +0000 (+0000)
Subject: lib: Fix use after free in matcher
X-Git-Tag: frr-3.0-branchpoint~129^2~266
X-Git-Url: https://git.puffer.fish/?a=commitdiff_plain;h=8aeffd7ae1aac2552f67aa8b2c7708b4d41c4d55;p=matthieu%2Ffrr.git

lib: Fix use after free in matcher

Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
---

diff --git a/lib/command_match.c b/lib/command_match.c
index 5ba1c1b6e7..305e3b1a68 100644
--- a/lib/command_match.c
+++ b/lib/command_match.c
@@ -272,14 +272,15 @@ match_command_complete (struct graph_node *start, const char *line)
    * current  = set of all transitions from the previous input token
    * next     = set of all nodes reachable from all nodes in `matched`
    */
-  list_free (current);
-  cmd_free_strvec(vline);
 
   matcher_result_value =
      idx + 1 == vector_active(vline) && next->count ?
      MATCHER_OK :
      MATCHER_NO_MATCH;
 
+  list_free (current);
+  cmd_free_strvec(vline);
+
   return next;
 }