From jens at kasten-edv.de  Sat Sep 17 21:24:16 2011
From: jens at kasten-edv.de (Jens Kasten)
Date: Sat, 17 Sep 2011 21:24:16 +0200
Subject: [rsbac] pax patch
Message-ID: <1316287456.16443.23.camel@malo.jaschtschik.local>

Hi list,

i try the pax patch-20 on 3.0.4.

I have now the follow situation:

The pax patch want modify this part from fs/namei.c

-	if (copy_to_user(buffer, link, len))
+
+	if (len < sizeof(tmpbuf)) {
+		memcpy(tmpbuf, link, len);
+		newlink = tmpbuf;
+	} else
+		newlink = link;
+
+	if (copy_to_user(buffer, newlink, len))

but on this place did rsbac a modification too.

#ifdef CONFIG_RSBAC_SYM_REDIR
        rsbac_name = rsbac_symlink_redirect(dentry->d_inode, link,
buflen);
        if (rsbac_name) {
                len = strlen(rsbac_name);
                if (copy_to_user(buffer, rsbac_name, len))
                        len = -EFAULT;
                kfree(rsbac_name);
        }
        else
#endif

        if (copy_to_user(buffer, link, len))

So I think the pax stuff has put befor the ifdef from rsabc and change
the part
	rsbac_name = rsbac_symlink_redirect(dentry-d_inode, newlink, buflen);

The question is in how far this does influence  each other.

Gr??e
Jens