This is a note to let you know that I've just added the patch titled
KEYS: 64-bit MIPS needs to use compat_sys_keyctl for 32-bit userspace
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
keys-64-bit-mips-needs-to-use-compat_sys_keyctl-for-32-bit-userspace.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 20f06ed9f61a185c6dabd662c310bed6189470df Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@xxxxxxxxxx>
Date: Wed, 27 Jul 2016 11:43:37 +0100
Subject: KEYS: 64-bit MIPS needs to use compat_sys_keyctl for 32-bit userspace
From: David Howells <dhowells@xxxxxxxxxx>
commit 20f06ed9f61a185c6dabd662c310bed6189470df upstream.
MIPS64 needs to use compat_sys_keyctl for 32-bit userspace rather than
calling sys_keyctl. The latter will work in a lot of cases, thereby hiding
the issue.
Reported-by: Stephan Mueller <smueller@xxxxxxxxxx>
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: linux-security-module@xxxxxxxxxxxxxxx
Cc: keyrings@xxxxxxxxxxxxxxx
Patchwork: https://patchwork.linux-mips.org/patch/13832/
Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/mips/kernel/scall64-n32.S | 2 +-
arch/mips/kernel/scall64-o32.S | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -344,7 +344,7 @@ EXPORT(sysn32_call_table)
PTR sys_ni_syscall /* available, was setaltroot */
PTR sys_add_key
PTR sys_request_key
- PTR sys_keyctl /* 6245 */
+ PTR compat_sys_keyctl /* 6245 */
PTR sys_set_thread_area
PTR sys_inotify_init
PTR sys_inotify_add_watch
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -500,7 +500,7 @@ EXPORT(sys32_call_table)
PTR sys_ni_syscall /* available, was setaltroot */
PTR sys_add_key /* 4280 */
PTR sys_request_key
- PTR sys_keyctl
+ PTR compat_sys_keyctl
PTR sys_set_thread_area
PTR sys_inotify_init
PTR sys_inotify_add_watch /* 4285 */
Patches currently in stable-queue which might be from dhowells@xxxxxxxxxx are
queue-4.4/keys-64-bit-mips-needs-to-use-compat_sys_keyctl-for-32-bit-userspace.patch
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