[OpenWrt-Devel] [PATCH] CC: toolchain: use latest glibc 2.21 revision

[Naresh Kumar Mehta]

From http://www.gnu.org/software/libc/, it seems CVE-2015-7547 was fixed in
v2.23. How come using v2.21 will fix this issue?

-----Original Message-----
From: openwrt-devel [mailto:openwrt-devel-bounces at lists.openwrt.org] On
Behalf Of Michael Marley
Sent: Wednesday, February 17, 2016 7:46 PM
To: openwrt-devel at lists.openwrt.org
Subject: [OpenWrt-Devel] [PATCH] CC: toolchain: use latest glibc 2.21
revision

Fixes "CVE-2015-7547 --- glibc getaddrinfo() stack-based buffer overflow"

Signed-off-by: Michael Marley <michael at michaelmarley.com>
---
 toolchain/glibc/Config.version                             |  6 ------
 toolchain/glibc/common.mk                                  | 12
+++++++++++-
 toolchain/glibc/patches/2.21/200-add-dl-search-paths.patch |  2 +-
 3 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/toolchain/glibc/Config.version b/toolchain/glibc/Config.version
index 2ac01d7..4ceed09 100644
--- a/toolchain/glibc/Config.version
+++ b/toolchain/glibc/Config.version
@@ -12,12 +12,6 @@ config EGLIBC_VERSION_2_19  config GLIBC_VERSION_2_21
 	bool
 
-config GLIBC_REVISION
-	string
-	default "25243" if EGLIBC_VERSION_2_19
-	default "4e42b5b8f8" if GLIBC_VERSION_2_21
-	default ""
-
 endif
 
 menu "eglibc configuration"
diff --git a/toolchain/glibc/common.mk b/toolchain/glibc/common.mk index
7487ca2..3d680bb 100644
--- a/toolchain/glibc/common.mk
+++ b/toolchain/glibc/common.mk
@@ -6,9 +6,19 @@
 #
 include $(TOPDIR)/rules.mk
 
+
+MD5SUM_2.19 = 42dad4edd3bcb38006d13b5640b00b38
+REVISION_2.19 = 25243
+
+MD5SUM_2.21 = 76050a65c444d58b5c4aa0d6034736ed
+REVISION_2.21 = 16d0a0c
+
+
 PKG_NAME:=glibc
 PKG_VERSION:=$(call qstrip,$(CONFIG_GLIBC_VERSION)) -PKG_REVISION:=$(call
qstrip,$(CONFIG_GLIBC_REVISION))
+
+PKG_REVISION:=$(REVISION_$(PKG_VERSION))
+PKG_MIRROR_MD5SUM:=$(MD5SUM_$(PKG_VERSION))
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=git://sourceware.org/git/glibc.git
diff --git a/toolchain/glibc/patches/2.21/200-add-dl-search-paths.patch
b/toolchain/glibc/patches/2.21/200-add-dl-search-paths.patch
index a6200f7..070f938 100644
--- a/toolchain/glibc/patches/2.21/200-add-dl-search-paths.patch
+++ b/toolchain/glibc/patches/2.21/200-add-dl-search-paths.patch
@@ -2,7 +2,7 @@ add /usr/lib to default search path for the dynamic linker
 
 --- a/Makeconfig
 +++ b/Makeconfig
-@@ -501,6 +501,9 @@ else
+@@ -499,6 +499,9 @@ else
  default-rpath = $(libdir)
  endif
  
--
2.7.1
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