linux-ext4 - Re: [PATCH] libext2fs: ensure validate_entry doesn't read beyond blocksize

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Date:	Mon, 29 Jun 2009 01:27:01 -0400
From:	Theodore Tso <tytso@....edu>
To:	number9652 <number9652@...oo.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH] libext2fs: ensure validate_entry doesn't read beyond
	blocksize

On Fri, Jun 12, 2009 at 09:04:32AM -0700, number9652 wrote:
> 
> ext2fs_validate_entry would read beyond the end of the block to get dirent->rec_len for certain arguments (like if blocksize == final_offset).  This patch adds a check so that doesn't happen, and changes the types of the arguments to avoid a compiler warning.
> 
> Signed-off-by: Nic Case <number9652@...oo.com>

Applied.  In the future, please line-wrap the body of the commit
message at 72-75 characters.

I also lined up the arguments to ext2fs_validate_entry on the
continuation line, and used a CPP macro instead of an automatic
variable for dirent_min_length.

					- Ted
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