gcc: Security fix CVE-2016-4488

(From OE-Core rev: 07820907d25970f2c22497415aa6ff95fe43dc40)

Signed-off-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 71 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-5.2.inc b/meta/recipes-devtools/gcc/gcc-5.2.inc
index a6b385ac65..2d9ba6d5cd 100644
--- a/meta/recipes-devtools/gcc/gcc-5.2.inc
+++ b/meta/recipes-devtools/gcc/gcc-5.2.inc
@@ -74,6 +74,7 @@ SRC_URI = "\
            file://0040-nativesdk-gcc-support.patch \
            file://0041-handle-target-sysroot-multilib.patch \
            file://0042-cxxflags-for-build.patch \
+           file://CVE-2016-4488.patch \
           "
 
 BACKPORTS = ""
diff --git a/meta/recipes-devtools/gcc/gcc-5.2/CVE-2016-4488.patch b/meta/recipes-devtools/gcc/gcc-5.2/CVE-2016-4488.patch
new file mode 100644
index 0000000000..02ef8dd8d0
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-5.2/CVE-2016-4488.patch
@@ -0,0 +1,70 @@
+From be3004dc350a820a5b0320b34bd05673ba534058 Mon Sep 17 00:00:00 2001
+From: law <law@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Thu, 31 Mar 2016 17:20:53 +0000
+Subject: [PATCH]        * cplus-dem.c (squangle_mop_up): Zero bsize/ksize
+ after freeing  btypevec/ktypevec.      * testsuite/demangle-expected: Add
+ coverage tests.
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234645 138bc75d-0d04-0410-961f-82ee72b054a4
+
+Upstream-Status: Backport
+CVE: CVE-2016-4488
+Signed-off-by: Armin Kuster <akuster@mvista.com>
+
+---
+ libiberty/ChangeLog                   |  7 +++++++
+ libiberty/cplus-dem.c                 |  2 ++
+ libiberty/testsuite/demangle-expected | 10 ++++++++++
+ 3 files changed, 19 insertions(+)
+
+Index: gcc-5.2.0/libiberty/cplus-dem.c
+===================================================================
+--- gcc-5.2.0.orig/libiberty/cplus-dem.c
++++ gcc-5.2.0/libiberty/cplus-dem.c
+@@ -1237,11 +1237,13 @@ squangle_mop_up (struct work_stuff *work
+     {
+       free ((char *) work -> btypevec);
+       work->btypevec = NULL;
++      work->bsize = 0;
+     }
+   if (work -> ktypevec != NULL)
+     {
+       free ((char *) work -> ktypevec);
+       work->ktypevec = NULL;
++      work->ksize = 0;
+     }
+ }
+ 
+Index: gcc-5.2.0/libiberty/testsuite/demangle-expected
+===================================================================
+--- gcc-5.2.0.orig/libiberty/testsuite/demangle-expected
++++ gcc-5.2.0/libiberty/testsuite/demangle-expected
+@@ -4356,3 +4356,13 @@ _QueueNotification_QueueController__$4PP
+ --format=gnu-v3
+ _Z1fSsB3fooS_
+ f(std::string[abi:foo], std::string[abi:foo])
++#
++# Tests a use-after-free problem
++
++_Q.__0
++::Q.(void)
++#
++# Tests a use-after-free problem
++
++_Q10-__9cafebabe.
++cafebabe.::-(void)
+Index: gcc-5.2.0/libiberty/ChangeLog
+===================================================================
+--- gcc-5.2.0.orig/libiberty/ChangeLog
++++ gcc-5.2.0/libiberty/ChangeLog
+@@ -1,3 +1,10 @@
++2016-03-31  Mikhail Maltsev  <maltsevm@gmail.com>
++           Marcel Bohme  boehme.marcel@gmail.com
++
++       * cplus-dem.c (squangle_mop_up): Zero bsize/ksize after freeing
++       btypevec/ktypevec.
++       * testsuite/demangle-expected: Add coverage tests.
++
+ 2015-07-16  Release Manager
+ 
+        * GCC 5.2.0 released.