[quantal CVE 1/1] UBUNTU: [Packaging] supply perf with appropriate prefix to ensure use of local config

[Andy Whitcroft]

If we do not supply an installation prefix when we are building perf
it will assume it is designed to run relative to the builders HOME.
This means that as built on a buildd we will check for the system
configuration relative to the buildd users home rather than in /etc.
This implies a local user could use this to compromise other users _if_
there is a buildd user installed on the system and they have access to it.

CVE-2013-1060
BugLink: http://bugs.launchpad.net/bugs/1206200
Signed-off-by: Andy Whitcroft <apw at canonical.com>
---
 debian/rules.d/2-binary-arch.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/debian/rules.d/2-binary-arch.mk b/debian/rules.d/2-binary-arch.mk
index 23367bb..7a04bcb 100644
--- a/debian/rules.d/2-binary-arch.mk
+++ b/debian/rules.d/2-binary-arch.mk
@@ -440,7 +440,7 @@ $(stampdir)/stamp-build-perarch: $(stampdir)/stamp-prepare-perarch
 	@echo Debug: $@
 ifeq ($(do_tools),true)
 	cd $(builddirpa)/tools/perf && \
-		make HAVE_CPLUS_DEMANGLE=1 CROSS_COMPILE=$(CROSS_COMPILE)
+		make prefix=/usr HAVE_CPLUS_DEMANGLE=1 CROSS_COMPILE=$(CROSS_COMPILE)
 	if [ "$(arch)" = "amd64" ] || [ "$(arch)" = "i386" ]; then \
 		cd $(builddirpa)/tools/power/x86/x86_energy_perf_policy && make CROSS_COMPILE=$(CROSS_COMPILE); \
 		cd $(builddirpa)/tools/power/x86/turbostat && make CROSS_COMPILE=$(CROSS_COMPILE); \
-- 
1.8.1.2