lkml.org 
[lkml]   [2016]   [Dec]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 3.12 36/38] sparc32: Fix inverted invalid_frame_pointer checks on sigreturns
Date
From: Andreas Larsson <andreas@gaisler.com>

3.12-stable review patch. If anyone has any objections, please let me know.

===============

[ Upstream commit 07b5ab3f71d318e52c18cc3b73c1d44c908aacfa ]

Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
arch/sparc/kernel/signal_32.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c
index e751dbc527e2..7e9dfc4fcc23 100644
--- a/arch/sparc/kernel/signal_32.c
+++ b/arch/sparc/kernel/signal_32.c
@@ -88,7 +88,7 @@ asmlinkage void do_sigreturn(struct pt_regs *regs)
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]))
@@ -149,7 +149,7 @@ asmlinkage void do_rt_sigreturn(struct pt_regs *regs)

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]))
--
2.11.0
\
 
 \ /
  Last update: 2016-12-13 20:54    [W:0.160 / U:0.952 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site