linux-ext4 - Re: [PATCH] ext4: Trim allocation requests to group size

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] [day] [month] [year] [list]

Message-ID: <20170201190702.qnkhbhdbs6r6wdja@thunk.org>
Date:   Wed, 1 Feb 2017 14:07:02 -0500
From:   Theodore Ts'o <tytso@....edu>
To:     Jan Kara <jack@...e.cz>
Cc:     linux-ext4@...r.kernel.org,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Subject: Re: [PATCH] ext4: Trim allocation requests to group size

On Tue, Jan 10, 2017 at 10:32:01AM +0100, Jan Kara wrote:
> If filesystem groups are artifically small (using parameter -g to
> mkfs.ext4), ext4_mb_normalize_request() can result in a request that is
> larger than a block group. Trim the request size to not confuse
> allocation code.
> 
> Reported-by: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
> Signed-off-by: Jan Kara <jack@...e.cz>

Thanks, applied.

					- Ted