gcc-8.3: Security fix for CVE-2019-14250

Affects < 9.2

(From OE-Core rev: 125c77be468adf8b3be8d00f99d80bd77f7d2e1e)

Signed-off-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 45 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-8.3.inc b/meta/recipes-devtools/gcc/gcc-8.3.inc
index dce85a2943..80f716aeac 100644
--- a/meta/recipes-devtools/gcc/gcc-8.3.inc
+++ b/meta/recipes-devtools/gcc/gcc-8.3.inc
@@ -74,6 +74,7 @@ SRC_URI = "\
            file://0041-Add-a-recursion-limit-to-libiberty-s-demangling-code.patch \
            file://0042-PR-debug-86964.patch \
            file://0043-PR85434-Prevent-spilling-of-stack-protector-guard-s-.patch \
+           file://CVE-2019-14250.patch \
 "
 SRC_URI[md5sum] = "65b210b4bfe7e060051f799e0f994896"
 SRC_URI[sha256sum] = "64baadfe6cc0f4947a84cb12d7f0dfaf45bb58b7e92461639596c21e02d97d2c"
diff --git a/meta/recipes-devtools/gcc/gcc-8.3/CVE-2019-14250.patch b/meta/recipes-devtools/gcc/gcc-8.3/CVE-2019-14250.patch
new file mode 100644
index 0000000000..e327684e16
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-8.3/CVE-2019-14250.patch
@@ -0,0 +1,44 @@
+From a4f1b58eb48b349a5f353bc69c30be553506d33b Mon Sep 17 00:00:00 2001
+From: rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Thu, 25 Jul 2019 10:48:26 +0000
+Subject: [PATCH] 2019-07-25  Richard Biener  <rguenther@suse.de>
+
+        PR lto/90924
+        Backport from mainline
+        2019-07-12  Ren Kimura  <rkx1209dev@gmail.com>
+
+        * simple-object-elf.c (simple_object_elf_match): Check zero value
+        shstrndx.
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-8-branch@273794 138bc75d-0d04-0410-961f-82ee72b054a4
+
+Upstream-Status: Backport
+Affectes: <  9.2
+CVE: CVE-2019-14250
+Dropped changelog
+Signed-off-by: Armin Kuster <Akustre@mvista.com>
+
+---
+ libiberty/simple-object-elf.c | 8 ++++++++
+ 2 files changed, 17 insertions(+)
+
+Index: gcc-8.2.0/libiberty/simple-object-elf.c
+===================================================================
+--- gcc-8.2.0.orig/libiberty/simple-object-elf.c
++++ gcc-8.2.0/libiberty/simple-object-elf.c
+@@ -549,6 +549,14 @@ simple_object_elf_match (unsigned char h
+       return NULL;
+     }
+ 
++  if (eor->shstrndx == 0)
++    {
++      *errmsg = "invalid ELF shstrndx == 0";
++      *err = 0;
++      XDELETE (eor);
++      return NULL;
++    }
++
+   return (void *) eor;
+ }
+