Re: Oops with 2.6.7-bk

[viro]

On Thu, Jun 24, 2004 at 11:16:49PM +0200, Marcel Holtmann wrote:
> I got this oops on boot with the latest Bitkeeper snapshot of 2.6.7

Memory corruption in generic_readlink(), now that we use nd->depth instead
of current->link_count.  Fix follows:

--- fs/namei.c	Thu Jun 24 16:06:45 2004
+++ fs/namei.c-fix	Thu Jun 24 16:07:24 2004
@@ -2197,7 +2197,9 @@
 int generic_readlink(struct dentry *dentry, char __user *buffer, int buflen)
 {
 	struct nameidata nd;
-	int res = dentry->d_inode->i_op->follow_link(dentry, &nd);
+	int res;
+	nd.depth = 0;
+	res = dentry->d_inode->i_op->follow_link(dentry, &nd);
 	if (!res) {
 		res = vfs_readlink(dentry, buffer, buflen, nd_get_link(&nd));
 		if (dentry->d_inode->i_op->put_link)
-
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