linux-kernel - Re: [PATCH 3/3] ide-{cd,floppy}: do not map all cmds to an sg

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: <9ea470500903050958v5d2219d0ha98fb35ae65fb75d@mail.gmail.com>
Date:	Thu, 5 Mar 2009 18:58:40 +0100
From:	Borislav Petkov <petkovbb@...glemail.com>
To:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Cc:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] ide-{cd,floppy}: do not map all cmds to an sg

On Thu, Mar 5, 2009 at 5:52 PM, Bartlomiej Zolnierkiewicz
<bzolnier@...il.com> wrote:
> On Thursday 05 March 2009, Borislav Petkov wrote:
>> Hi,
>>
>> > Unrelated to the original issue that the patch tries to fix
>> > (sg mapping no data commands which OOPS-es w/ DEBUG_VIRTUAL=y):
>> > - moving ide_init_sg_cmd()+ide_map_sg() to ide_issue_pc()
>> > - converting the code to use blk_rq_bytes()
>>
>> aah, ok, now I could get exactly what you meant :). However, (!) ide-floppy is
>> potentially broken in the same way for data-less cmds since we unconditionally
>
> Indeed, you are right but it seems that this is not a new problem.

Sure, as I said before, nobody's using ide-floppy.

> Wait... it makes things "worse" as there should have been 3 patches:
> (IOW _three_ patchpoints! ;):
>
> - ide-cd fix for problematic patch
> - ide-floppy fix for mainline
> - ide-atapi cleanup for pata tree

Yeah, I get the hint. :).

-- 
Regards/Gruss,
Boris
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/