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

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Message-ID: <20230308190423.46491-5-joey.gouly@arm.com>
Date:   Wed, 8 Mar 2023 19:04:23 +0000
From:   Joey Gouly <joey.gouly@....com>
To:     Andrew Morton <akpm@...ux-foundation.org>
CC:     <nd@....com>, <acme@...hat.com>, <catalin.marinas@....com>,
        <izbyshev@...ras.ru>, <joey.gouly@....com>, <peterx@...hat.com>,
        <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        Shuah Khan <shuah@...nel.org>,
        Kees Cook <keescook@...omium.org>
Subject: [PATCH v1 4/4] tools headers UAPI: Sync linux/prctl.h with the kernel sources

From: Peter Xu <peterx@...hat.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@...hat.com>
[joey: added commit message]
Signed-off-by: Joey Gouly <joey.gouly@....com>
Cc: Catalin Marinas <catalin.marinas@....com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/include/uapi/linux/prctl.h | 6 ++++++
 1 file changed, 6 insertions(+)

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
 
-- 
2.17.1