glibc: Fix CVE-2017-1000366

Add backported patches from the upstream release/2.24/master branch to
fix CVE-2017-1000366. Also add a backported patch that resolves SSE
related build problems introduced by these patches.

(From OE-Core rev: 07e041138f0b037e7ddc75a33c7960668acdb8bb)

Signed-off-by: George McCollister <george.mccollister@gmail.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 62 insertions, 0 deletions

diff --git a/meta/recipes-core/glibc/glibc/0004-i686-Add-missing-IS_IN-libc-guards-to-vectorized-str.patch b/meta/recipes-core/glibc/glibc/0004-i686-Add-missing-IS_IN-libc-guards-to-vectorized-str.patch
new file mode 100644
index 0000000000..43c4398fec
--- /dev/null
+++ b/meta/recipes-core/glibc/glibc/0004-i686-Add-missing-IS_IN-libc-guards-to-vectorized-str.patch
@@ -0,0 +1,62 @@
+From 203835b3bf6f1edfe1ebe4a7fa15dc085e6dc8f7 Mon Sep 17 00:00:00 2001
+From: Florian Weimer <fweimer@redhat.com>
+Date: Wed, 14 Jun 2017 08:11:22 +0200
+Subject: [PATCH] i686: Add missing IS_IN (libc) guards to vectorized strcspn
+
+Since commit d957c4d3fa48d685ff2726c605c988127ef99395 (i386: Compile
+rtld-*.os with -mno-sse -mno-mmx -mfpmath=387), vector intrinsics can
+no longer be used in ld.so, even if the compiled code never makes it
+into the final ld.so link.  This commit adds the missing IS_IN (libc)
+guard to the SSE 4.2 strcspn implementation, so that it can be used from
+ld.so in the future.
+
+(cherry picked from commit 69052a3a95da37169a08f9e59b2cc1808312753c)
+
+Upstream-Status: Backport
+https://sourceware.org/git/?p=glibc.git;a=commit;h=86ac4a78a9218d1e1dcfbacc6f7d09957c1fe3a4
+
+Required to build fixes for CVE-2017-1000366.
+
+Signed-off-by: George McCollister <george.mccollister@gmail.com>
+---
+ ChangeLog                               | 5 +++++
+ sysdeps/i386/i686/multiarch/strcspn-c.c | 6 ++++--
+ sysdeps/i386/i686/multiarch/varshift.c  | 4 +++-
+ 3 files changed, 12 insertions(+), 3 deletions(-)
+
+diff --git a/ChangeLog b/ChangeLog
+index 638cb632b1..3f89a2cdb2 100644
+--- a/ChangeLog
++++ b/ChangeLog
+@@ -1,3 +1,8 @@
++2017-06-14  Florian Weimer  <fweimer@redhat.com>
++
++       * sysdeps/i386/i686/multiarch/strcspn-c.c: Add IS_IN (libc) guard.
++       * sysdeps/i386/i686/multiarch/varshift.c: Likewise.
++
+ 2017-06-19  Florian Weimer  <fweimer@redhat.com>
+ 
+        * elf/rtld.c (audit_list_string): New variable.
+diff --git a/sysdeps/i386/i686/multiarch/strcspn-c.c b/sysdeps/i386/i686/multiarch/strcspn-c.c
+index 6d61e190a8..ec230fb383 100644
+--- a/sysdeps/i386/i686/multiarch/strcspn-c.c
++++ b/sysdeps/i386/i686/multiarch/strcspn-c.c
+@@ -1,2 +1,4 @@
+-#define __strcspn_sse2 __strcspn_ia32
+-#include <sysdeps/x86_64/multiarch/strcspn-c.c>
++#if IS_IN (libc)
++# define __strcspn_sse2 __strcspn_ia32
++# include <sysdeps/x86_64/multiarch/strcspn-c.c>
++#endif
+diff --git a/sysdeps/i386/i686/multiarch/varshift.c b/sysdeps/i386/i686/multiarch/varshift.c
+index 7760b966e2..6742a35d41 100644
+--- a/sysdeps/i386/i686/multiarch/varshift.c
++++ b/sysdeps/i386/i686/multiarch/varshift.c
+@@ -1 +1,3 @@
+-#include <sysdeps/x86_64/multiarch/varshift.c>
++#if IS_IN (libc)
++# include <sysdeps/x86_64/multiarch/varshift.c>
++#endif
+-- 
+2.15.0
+