From: Martin Radev <martin.b.radev@gmail.com>
To: kvm@vger.kernel.org, will@kernel.org,
julien.thierry.kdev@gmail.com, andre.przywara@arm.com,
alexandru.elisei@arm.com
Cc: Martin Radev <martin.b.radev@gmail.com>
Subject: [PATCH kvmtool 4/5] Makefile: Mark stack as not executable
Date: Fri, 4 Mar 2022 01:10:49 +0200 [thread overview]
Message-ID: <20220303231050.2146621-5-martin.b.radev@gmail.com> (raw)
In-Reply-To: <20220303231050.2146621-1-martin.b.radev@gmail.com>
This patch modifies CFLAGS to mark the stack explicitly
as not executable.
Signed-off-by: Martin Radev <martin.b.radev@gmail.com>
---
Makefile | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/Makefile b/Makefile
index f251147..09ef282 100644
--- a/Makefile
+++ b/Makefile
@@ -380,8 +380,11 @@ DEFINES += -D_GNU_SOURCE
DEFINES += -DKVMTOOLS_VERSION='"$(KVMTOOLS_VERSION)"'
DEFINES += -DBUILD_ARCH='"$(ARCH)"'
+# The stack doesn't need to be executable
+SECURITY_HARDENINGS := -z noexecstack
+
KVM_INCLUDE := include
-CFLAGS += $(CPPFLAGS) $(DEFINES) -I$(KVM_INCLUDE) -I$(ARCH_INCLUDE) -O2 -fno-strict-aliasing -g
+CFLAGS += $(CPPFLAGS) $(DEFINES) $(SECURITY_HARDENINGS) -I$(KVM_INCLUDE) -I$(ARCH_INCLUDE) -O2 -fno-strict-aliasing -g
WARNINGS += -Wall
WARNINGS += -Wformat=2
@@ -582,4 +585,4 @@ ifneq ($(MAKECMDGOALS),clean)
KVMTOOLS-VERSION-FILE:
@$(SHELL_PATH) util/KVMTOOLS-VERSION-GEN $(OUTPUT)
-endif
\ No newline at end of file
+endif
--
2.25.1
next prev parent reply other threads:[~2022-03-03 23:11 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-03 23:10 [PATCH v2 kvmtool 0/5] Fix few small issues in virtio code Martin Radev
2022-03-03 23:10 ` [PATCH kvmtool 1/5] kvmtool: Add WARN_ONCE macro Martin Radev
2022-03-03 23:10 ` [PATCH kvmtool 2/5] virtio: Sanitize config accesses Martin Radev
2022-03-16 13:04 ` Alexandru Elisei
2022-03-27 20:37 ` Martin Radev
2022-04-22 10:12 ` Alexandru Elisei
2022-03-03 23:10 ` [PATCH kvmtool 3/5] virtio: Check for overflows in QUEUE_NOTIFY and QUEUE_SEL Martin Radev
2022-03-16 15:38 ` Alexandru Elisei
2022-03-27 20:45 ` Martin Radev
2022-04-22 10:35 ` Alexandru Elisei
2022-03-03 23:10 ` Martin Radev [this message]
2022-03-03 23:10 ` [PATCH kvmtool 5/5] mmio: Sanitize addr and len Martin Radev
2022-03-16 15:39 ` Alexandru Elisei
2022-03-27 21:00 ` Martin Radev
2022-04-22 10:36 ` Alexandru Elisei
2022-03-10 14:56 ` [PATCH v2 kvmtool 0/5] Fix few small issues in virtio code Alexandru Elisei
2022-03-11 11:23 ` Andre Przywara
2022-03-14 17:11 ` Alexandru Elisei
2022-03-27 12:46 ` Martin Radev
2022-04-22 10:37 ` Alexandru Elisei
2022-05-06 13:20 ` Will Deacon
-- strict thread matches above, loose matches on Subject: below --
2022-01-17 22:11 [PATCH kvmtool 0/5] kvmtool: Fix few found bugs Martin Radev
2022-01-17 22:12 ` [PATCH kvmtool 4/5] Makefile: Mark stack as not executable Martin Radev
2022-02-01 15:01 ` Andre Przywara
2022-02-01 15:33 ` Alexandru Elisei
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