From da0b9110fc783245aaa88ae6ed28aa6d5fe1bdea Mon Sep 17 00:00:00 2001
From: Ben Kelly <ben@benjii.net>
Date: Tue, 7 Feb 2017 10:56:47 +0200
Subject: [PATCH] uclibc++: patch bugfix erase() on derived __base_associative
When calling erase() on a containers derived from __base_associative
(e.g. multimap) and providing a pair of iterators a segfault will
occur.
Example code to reproduce:
typedef std::multimap<int, int> testmap;
testmap t;
t.insert(std::pair<int, int>(1, 1));
t.insert(std::pair<int, int>(2, 1));
t.insert(std::pair<int, int>(3, 1));
t.erase(t.begin(), t.end());
Signed-off-by: Ben Kelly <ben@benjii.net>
---
...-erase-on-derived-__base_associative.patch | 40 +++++++++++++++++++
1 file changed, 40 insertions(+)
create mode 100644 package/libs/uclibc++/patches/050-Bugfix-erase-on-derived-__base_associative.patch
diff --git a/package/libs/uclibc++/patches/050-Bugfix-erase-on-derived-__base_associative.patch b/package/libs/uclibc++/patches/050-Bugfix-erase-on-derived-__base_associative.patch
new file mode 100644
index 0000000000..2ddb8a984e
--- /dev/null
+++ b/package/libs/uclibc++/patches/050-Bugfix-erase-on-derived-__base_associative.patch
@@ -0,0 +1,40 @@
+From 946b29e62927eadfc4e87f27b8d30e5974b78c4c Mon Sep 17 00:00:00 2001
+From: Ben Kelly <ben@benjii.net>
+Date: Mon, 6 Feb 2017 13:08:25 +0200
+Subject: [PATCH] Bugfix erase() on derived __base_associative
+
+When calling erase() on a containers derived from __base_associative
+(e.g. multimap) and providing a pair of iterators a segfault will
+occur.
+
+Example code to reproduce:
+
+ typedef std::multimap<int, int> testmap;
+ testmap t;
+ t.insert(std::pair<int, int>(1, 1));
+ t.insert(std::pair<int, int>(2, 1));
+ t.insert(std::pair<int, int>(3, 1));
+ t.erase(t.begin(), t.end());
+
+Signed-off-by: Ben Kelly <ben@benjii.net>
+---
+ include/associative_base | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/include/associative_base b/include/associative_base
+index 27ae0ef..be8b27f 100644
+--- a/include/associative_base
++++ b/include/associative_base
+@@ -200,8 +200,7 @@ public:
+ }
+ void erase(iterator first, iterator last){
+ while(first != last){
+- backing.erase(first.base_iterator());
+- ++first;
++ first = backing.erase(first.base_iterator());
+ }
+ }
+
+--
+2.7.4
+
--
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