Patch "sparc32: Fix inverted invalid_frame_pointer checks on sigreturns" has been added to the 4.4-stable tree

Patch "sparc32: Fix inverted invalid_frame_pointer checks on sigreturns" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    sparc32: Fix inverted invalid_frame_pointer checks on sigreturns

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:
     sparc32-fix-inverted-invalid_frame_pointer-checks-on-sigreturns.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@vger.kernel.org> know about it.


>From foo@baz Thu Dec  8 07:19:49 CET 2016
From: Andreas Larsson <andreas@gaisler.com>
Date: Wed, 9 Nov 2016 10:43:05 +0100
Subject: sparc32: Fix inverted invalid_frame_pointer checks on sigreturns

From: Andreas Larsson <andreas@gaisler.com>


[ Upstream commit 07b5ab3f71d318e52c18cc3b73c1d44c908aacfa ]

Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/sparc/kernel/signal_32.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/sparc/kernel/signal_32.c
+++ b/arch/sparc/kernel/signal_32.c
@@ -89,7 +89,7 @@ asmlinkage void do_sigreturn(struct pt_r
 	sf = (struct signal_frame __user *) regs->u_regs[UREG_FP];
 
 	/* 1. Make sure we are not getting garbage from the user */
-	if (!invalid_frame_pointer(sf, sizeof(*sf)))
+	if (invalid_frame_pointer(sf, sizeof(*sf)))
 		goto segv_and_exit;
 
 	if (get_user(ufp, &sf->info.si_regs.u_regs[UREG_FP]))
@@ -150,7 +150,7 @@ asmlinkage void do_rt_sigreturn(struct p
 
 	synchronize_user_stack();
 	sf = (struct rt_signal_frame __user *) regs->u_regs[UREG_FP];
-	if (!invalid_frame_pointer(sf, sizeof(*sf)))
+	if (invalid_frame_pointer(sf, sizeof(*sf)))
 		goto segv;
 
 	if (get_user(ufp, &sf->regs.u_regs[UREG_FP]))


Patches currently in stable-queue which might be from andreas@gaisler.com are

queue-4.4/sparc32-fix-inverted-invalid_frame_pointer-checks-on-sigreturns.patch