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 ` [PATCH] uselib: add missing MNT_NOEXEC check Ulrich Drepper
2007-05-17 18:44 ` Christoph Hellwig
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20070517135526.GA28213@lst.de \
--to=hch@lst.de \
--cc=akpm@osdl.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.