linux-ext4 - Re: [PATCH] jbd2: Fix a race between checkpointing code and journal_get_write

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20090713131901.GC12833@mit.edu>
Date:	Mon, 13 Jul 2009 09:19:01 -0400
From:	Theodore Tso <tytso@....edu>
To:	Jan Kara <jack@...e.cz>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH] jbd2: Fix a race between checkpointing code and
	journal_get_write_access()

On Fri, Jul 10, 2009 at 12:07:13PM +0200, Jan Kara wrote:
>   Yes, it should be "this should never happen", unless you run something
> like tune2fs while the filesystem is mounted. But looking at the code, I
> have missed that buffer could be dirty also in
> jbd2_journal_get_create_access() because jbd2_journal_forget() does not
> clear the dirty bit in case the buffer is just being committed. Attached
> patch should fix it. Thanks for report.

Thanks, added to the patch queue.

						- Ted
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html