linux-kernel - [PATCH] x86/uapi: fix SHADOW_STACK_SET

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-next>] [day] [month] [year] [list]

Message-ID: <20231022222134.GA5334@altlinux.org>
Date:   Mon, 23 Oct 2023 01:21:34 +0300
From:   "Dmitry V. Levin" <ldv@...ace.io>
To:     Rick Edgecombe <rick.p.edgecombe@...el.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Borislav Petkov <bp@...en8.de>
Cc:     x86@...nel.org, linux-api@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] x86/uapi: fix SHADOW_STACK_SET_TOKEN type

Fix the type of SHADOW_STACK_SET_TOKEN to match the type of the
corresponding "flags" argument of map_shadow_stack syscall which
is of type "unsigned int".

Fixes: c35559f94ebc3 ("x86/shstk: Introduce map_shadow_stack syscall")
Signed-off-by: Dmitry V. Levin <ldv@...ace.io>
---
 arch/x86/include/uapi/asm/mman.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/include/uapi/asm/mman.h b/arch/x86/include/uapi/asm/mman.h
index 46cdc941f958..8419e25bb617 100644
--- a/arch/x86/include/uapi/asm/mman.h
+++ b/arch/x86/include/uapi/asm/mman.h
@@ -6,7 +6,7 @@
 #define MAP_ABOVE4G	0x80		/* only map above 4GB */
 
 /* Flags for map_shadow_stack(2) */
-#define SHADOW_STACK_SET_TOKEN	(1ULL << 0)	/* Set up a restore token in the shadow stack */
+#define SHADOW_STACK_SET_TOKEN	(1U << 0)	/* Set up a restore token in the shadow stack */
 
 #include <asm-generic/mman.h>
 
-- 
ldv