linux-kernel - [PATCH 3.12 08/84] kbuild: forbid kernel directory to contain spaces and colons

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 17 Oct 2016 09:50:55 +0200
From:   Jiri Slaby <jslaby@...e.cz>
To:     stable@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Robert Jarzmik <robert.jarzmik@...e.fr>,
        Michal Marek <mmarek@...e.com>, Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 08/84] kbuild: forbid kernel directory to contain spaces and colons

From: Robert Jarzmik <robert.jarzmik@...e.fr>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit 51193b76bfff5027cf96ba63effae808ad67cca7 upstream.

When the kernel path contains a space or a colon somewhere in the path
name, the modules_install target doesn't work anymore, as the path names
are not enclosed in double quotes. It is also supposed that and O= build
will suffer from the same weakness as modules_install.

Instead of checking and improving kbuild to resist to directories
including these characters, error out early to prevent any build if the
kernel's main directory contains a space.

Signed-off-by: Robert Jarzmik <robert.jarzmik@...e.fr>
Signed-off-by: Michal Marek <mmarek@...e.com>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Makefile b/Makefile
index 0b3a710c8a44..297c605c25bf 100644
--- a/Makefile
+++ b/Makefile
@@ -113,6 +113,10 @@ _all:
 # Cancel implicit rules on top Makefile
 $(CURDIR)/Makefile Makefile: ;

+ifneq ($(words $(subst :, ,$(CURDIR))), 1)
+  $(error main directory cannot contain spaces nor colons)
+endif
+
 ifneq ($(KBUILD_OUTPUT),)
 # Invoke a second make in the output directory, passing relevant variables
 # check that the output directory actually exists
-- 
2.10.1