From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Kent Subject: [PATCH] autofs4 - check for invalid dentry in getpath Date: Mon, 28 Apr 2008 14:21:21 +0800 (WST) Message-ID: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Cc: Kernel Mailing List , autofs mailing list , linux-fsdevel To: Andrew Morton Return-path: Received: from out4.smtp.messagingengine.com ([66.111.4.28]:34317 "EHLO out4.smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751177AbYD1GWK (ORCPT ); Mon, 28 Apr 2008 02:22:10 -0400 Sender: linux-fsdevel-owner@vger.kernel.org List-ID: Hi Andrew, Patch to catch invalid dentry when calculating it's path. Signed-off-by: Ian Kent Ian --- diff -up linux-2.6.25-rc2-mm1/fs/autofs4/waitq.c.getpath-check-valid-dentry linux-2.6.25-rc2-mm1/fs/autofs4/waitq.c --- linux-2.6.25-rc2-mm1/fs/autofs4/waitq.c.getpath-check-valid-dentry 2008-02-20 12:55:39.000000000 +0900 +++ linux-2.6.25-rc2-mm1/fs/autofs4/waitq.c 2008-02-20 12:54:46.000000000 +0900 @@ -171,7 +171,7 @@ static int autofs4_getpath(struct autofs for (tmp = dentry ; tmp != root ; tmp = tmp->d_parent) len += tmp->d_name.len + 1; - if (--len > NAME_MAX) { + if (!len || --len > NAME_MAX) { spin_unlock(&dcache_lock); return 0; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/