diff mbox series

[v1,4/4] tools headers UAPI: Sync linux/prctl.h with the kernel sources

Message ID 20230308190423.46491-5-joey.gouly@arm.com (mailing list archive)
State New
Headers show
Series Fixes for MDWE prctl | expand

Commit Message

Joey Gouly March 8, 2023, 7:04 p.m. UTC 
From: Peter Xu <peterx@redhat.com>

Sync prctl.h after the changes in b507808ebce ("mm: implement memory-deny-write-execute as a prctl")

Fixes: 4cf1fe34fd18 ("kselftest: vm: add tests for memory-deny-write-execute")
Signed-off-by: Peter Xu <peterx@redhat.com>
[joey: added commit message]
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/include/uapi/linux/prctl.h | 6 ++++++
 1 file changed, 6 insertions(+)

Comments

Catalin Marinas March 13, 2023, 2:13 p.m. UTC | #1 
On Wed, Mar 08, 2023 at 07:04:23PM +0000, Joey Gouly wrote:
> From: Peter Xu <peterx@redhat.com>
> 
> Sync prctl.h after the changes in b507808ebce ("mm: implement memory-deny-write-execute as a prctl")
> 
> Fixes: 4cf1fe34fd18 ("kselftest: vm: add tests for memory-deny-write-execute")
> Signed-off-by: Peter Xu <peterx@redhat.com>
> [joey: added commit message]
> Signed-off-by: Joey Gouly <joey.gouly@arm.com>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: Arnaldo Carvalho de Melo <acme@redhat.com>

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
diff mbox series

Patch

diff --git a/tools/include/uapi/linux/prctl.h b/tools/include/uapi/linux/prctl.h
index a5e06dcbba13..1312a137f7fb 100644
--- a/tools/include/uapi/linux/prctl.h
+++ b/tools/include/uapi/linux/prctl.h
@@ -281,6 +281,12 @@  struct prctl_mm_map {
 # define PR_SME_VL_LEN_MASK		0xffff
 # define PR_SME_VL_INHERIT		(1 << 17) /* inherit across exec */
 
+/* Memory deny write / execute */
+#define PR_SET_MDWE			65
+# define PR_MDWE_REFUSE_EXEC_GAIN	1
+
+#define PR_GET_MDWE			66
+
 #define PR_SET_VMA		0x53564d41
 # define PR_SET_VMA_ANON_NAME		0