linux-kernel - [PATCH 5/5] mn10300: check __get_user/__put

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Message-Id: <E1OzvyK-0002qC-AS@ZenIV.linux.org.uk>
Date:	Sun, 26 Sep 2010 19:29:12 +0100
From:	Al Viro <viro@....linux.org.uk>
To:	linux-kernel@...r.kernel.org
Cc:	dhowells@...hat.com, torvalds@...ux-foundation.org
Subject: [PATCH 5/5] mn10300: check __get_user/__put_user results...


Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
 arch/mn10300/kernel/signal.c |   12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/mn10300/kernel/signal.c b/arch/mn10300/kernel/signal.c
index ae36480..d4de05a 100644
--- a/arch/mn10300/kernel/signal.c
+++ b/arch/mn10300/kernel/signal.c
@@ -65,10 +65,10 @@ asmlinkage long sys_sigaction(int sig,
 		old_sigset_t mask;
 		if (verify_area(VERIFY_READ, act, sizeof(*act)) ||
 		    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
-		    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
+		    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) ||
+		    __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
+		    __get_user(mask, &act->sa_mask))
 			return -EFAULT;
-		__get_user(new_ka.sa.sa_flags, &act->sa_flags);
-		__get_user(mask, &act->sa_mask);
 		siginitset(&new_ka.sa.sa_mask, mask);
 	}
 
@@ -77,10 +77,10 @@ asmlinkage long sys_sigaction(int sig,
 	if (!ret && oact) {
 		if (verify_area(VERIFY_WRITE, oact, sizeof(*oact)) ||
 		    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
-		    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
+		    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) ||
+		    __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
+		    __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
 			return -EFAULT;
-		__put_user(old_ka.sa.sa_flags, &oact->sa_flags);
-		__put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
 	}
 
 	return ret;
-- 
1.5.6.5

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