Blame SOURCES/zsh-5.0.2-CVE-2018-7549.patch
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From 8aa649ab39c6113072f93d8065d846477ab297f1 Mon Sep 17 00:00:00 2001
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From: Stephane Chazelas <stephane.chazelas@gmail.com>
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Date: Fri, 22 Dec 2017 22:17:09 +0000
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Subject: [PATCH] Avoid crash copying empty hash table.
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Visible with typeset -p.
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Upstream-commit: c2cc8b0fbefc9868fa83537f5b6d90fc1ec438dd
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Signed-off-by: Kamil Dudka <kdudka@redhat.com>
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---
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Src/params.c | 11 +++++++----
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1 file changed, 7 insertions(+), 4 deletions(-)
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diff --git a/Src/params.c b/Src/params.c
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index be8394b..25f34e8 100644
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--- a/Src/params.c
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+++ b/Src/params.c
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@@ -492,10 +492,13 @@ scancopyparams(HashNode hn, UNUSED(int flags))
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HashTable
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copyparamtable(HashTable ht, char *name)
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{
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- HashTable nht = newparamtable(ht->hsize, name);
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- outtable = nht;
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- scanhashtable(ht, 0, 0, 0, scancopyparams, 0);
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- outtable = NULL;
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+ HashTable nht = 0;
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+ if (ht) {
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+ nht = newparamtable(ht->hsize, name);
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+ outtable = nht;
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+ scanhashtable(ht, 0, 0, 0, scancopyparams, 0);
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+ outtable = NULL;
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+ }
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return nht;
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}
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--
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2.14.3
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