linux-kernel - [PATCH] binfmt_flat: missing argv table

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Message-ID: <874o3rimbn.wl%ysato@users.sourceforge.jp>
Date:	Wed, 15 Jun 2011 16:30:04 +0900
From:	Yoshinori Sato <ysato@...rs.sourceforge.jp>
To:	uclinux-dev@...inux.org, linux-kernel@...r.kernel.org
Subject: [PATCH] binfmt_flat: missing argv table

"put_user" is multiple times evalute on argument
(in asm-generic/uaccess.h).
So this code building argv table include gabage.

Signed-off-by: Yoshinori Sato <ysato@...rs.sourceforge.jp>

diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 811384b..127a198 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -144,7 +144,7 @@ static unsigned long create_flat_tables(
 	put_user(argc, sp);
 	current->mm->arg_start = (unsigned long) p;
 	while (argc-->0) {
-		put_user((unsigned long) p, argv++);
+		put_user((unsigned long) p, argv); argv++;
 		do {
 			get_user(dummy, p); p++;
 		} while (dummy);

-- 
Yoshinori Sato
<ysato@...rs.sourceforge.jp>
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