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Merge pull request #1438 from pullmoll/glibc 

glibc: Add security buflen and 32bit regression patches
This commit is contained in:
Juan RP 2015-04-28 09:29:57 +02:00
parent 5545fb4314 2bfcb1c4ca
commit 7ab311d4aa
3 changed files with 31 additions and 2 deletions
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15
srcpkgs/glibc/patches/glibc-32bit-regression.patch Normal file
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@ -0,0 +1,15 @@
Taken from http://www.linuxfromscratch.org/lfs/view/development/chapter06/glibc.html
--- sysdeps/i386/i686/multiarch/mempcpy_chk.S 2015-02-06 07:40:18.000000000 +0100
+++ sysdeps/i386/i686/multiarch/mempcpy_chk.S 2015-04-25 17:38:44.952119997 +0200
@@ -36,8 +36,8 @@
cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx)
jne 1f
call __init_cpu_features
- leal __mempcpy_chk_ia32@GOTOFF(%ebx), %eax
-1: testl $bit_SSE2, CPUID_OFFSET+index_SSE2+__cpu_features@GOTOFF(%ebx)
+1: leal __mempcpy_chk_ia32@GOTOFF(%ebx), %eax
+ testl $bit_SSE2, CPUID_OFFSET+index_SSE2+__cpu_features@GOTOFF(%ebx)
jz 2f
leal __mempcpy_chk_sse2_unaligned@GOTOFF(%ebx), %eax
testl $bit_Fast_Unaligned_Load, FEATURE_OFFSET+index_Fast_Unaligned_Load+__cpu_features@GOTOFF(%ebx)

14
srcpkgs/glibc/patches/glibc-security-buflen.patch Normal file
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@ -0,0 +1,14 @@
Taken from http://www.linuxfromscratch.org/lfs/view/development/chapter06/glibc.html
--- resolv/nss_dns/dns-host.c 2015-02-06 07:40:18.000000000 +0100
+++ resolv/nss_dns/dns-host.c 2015-04-25 17:38:58.365119958 +0200
@@ -615,7 +615,8 @@
int have_to_map = 0;
uintptr_t pad = -(uintptr_t) buffer % __alignof__ (struct host_data);
buffer += pad;
- if (__glibc_unlikely (buflen < sizeof (struct host_data) + pad))
+ buflen = buflen > pad ? buflen - pad : 0;
+ if (__glibc_unlikely (buflen < sizeof (struct host_data)))
{
/* The buffer is too small. */
too_small:

4
srcpkgs/glibc/template
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@ -1,13 +1,13 @@
# Template file for 'glibc'
pkgname=glibc
version=2.21
revision=3
revision=4
bootstrap=yes
short_desc="The GNU C library"
maintainer="Juan RP <xtraeme@voidlinux.eu>"
homepage="http://www.gnu.org/software/libc"
license="GPL-2, LGPL-2.1, BSD"
distfiles="http://ftp.gnu.org/gnu/glibc/glibc-${version}.tar.xz"
distfiles="${GNU_SITE}/glibc/glibc-${version}.tar.xz"
checksum=aeeb362437965a5d3f40b151094ca79def04a115bd363fdd4a9a0c69482923b8
# Do not strip these files, objcopy errors out.
nostrip_files="