From 8aa649ab39c6113072f93d8065d846477ab297f1 Mon Sep 17 00:00:00 2001
From: Stephane Chazelas <stephane.chazelas@gmail.com>
Date: Fri, 22 Dec 2017 22:17:09 +0000
Subject: [PATCH] Avoid crash copying empty hash table.
Visible with typeset -p.
Upstream-commit: c2cc8b0fbefc9868fa83537f5b6d90fc1ec438dd
Signed-off-by: Kamil Dudka <kdudka@redhat.com>
---
Src/params.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/Src/params.c b/Src/params.c
index be8394b..25f34e8 100644
--- a/Src/params.c
+++ b/Src/params.c
@@ -492,10 +492,13 @@ scancopyparams(HashNode hn, UNUSED(int flags))
HashTable
copyparamtable(HashTable ht, char *name)
{
- HashTable nht = newparamtable(ht->hsize, name);
- outtable = nht;
- scanhashtable(ht, 0, 0, 0, scancopyparams, 0);
- outtable = NULL;
+ HashTable nht = 0;
+ if (ht) {
+ nht = newparamtable(ht->hsize, name);
+ outtable = nht;
+ scanhashtable(ht, 0, 0, 0, scancopyparams, 0);
+ outtable = NULL;
+ }
return nht;
}
--
2.14.3