From: Christoph Hellwig <hch@lst.de>
To: akpm@osdl.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] uselib: add missing MNT_NOEXEC check
Date: Thu, 17 May 2007 15:55:26 +0200 [thread overview]
Message-ID: <20070517135526.GA28213@lst.de> (raw)
We don't allow loading ELF shared library from noexec points so the
same should apply to sys_uselib aswell.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Index: linux-2.6/fs/exec.c
===================================================================
--- linux-2.6.orig/fs/exec.c 2007-04-24 14:22:40.000000000 +0200
+++ linux-2.6/fs/exec.c 2007-04-24 14:22:57.000000000 +0200
@@ -133,6 +133,8 @@ asmlinkage long sys_uselib(const char __
goto out;
error = -EINVAL;
+ if (nd.mnt->mnt_flags & MNT_NOEXEC)
+ goto exit;
if (!S_ISREG(nd.dentry->d_inode->i_mode))
goto exit;
next reply other threads:[~2007-05-17 13:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-17 13:55 Christoph Hellwig [this message]
2007-05-17 16:14 ` Ulrich Drepper
2007-05-17 18:44 ` Christoph Hellwig
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