linux-kernel - Re: long-term regression with some usb mass storage devices

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: <200902201811.52801.mike@mtgambier.net>
Date:	Fri, 20 Feb 2009 18:11:52 +1030
From:	Mike Lampard <mike@...ambier.net>
To:	linux-kernel@...r.kernel.org
Cc:	stern@...land.harvard.edu
Subject: Re: long-term regression with some usb mass storage devices


added CC

On Fri, 20 Feb 2009 05:17:42 pm Mike Lampard wrote:
> Hi All,
>
> I recently plonked a dvd into my usb-attached Pioneer DVR-107d only to find
> that the current kernels no longer saw the drive as DVD capable.  In fact,
> the kernel no longer saw _any_ features of the drive: sr0: scsi3-mmc drive:
> 0x/0x caddy.  After much bisecting and even more blind luck I narrowed the
> problem down to this commit:
>
> commit bdb2b8cab4392ce41ddfbd6773a3da3334daf836
> Author: Alan Stern <stern@...land.harvard.edu>
> Date:   Tue Jun 24 14:03:14 2008 -0400
>
>     [SCSI] erase invalid data returned by device
>
>     This patch (as1108) fixes a problem that can occur with certain USB
>     mass-storage devices: They return invalid data together with a residue
>     indicating that the data should be ignored.  Rather than leave the
>     invalid data in a transfer buffer, where it can get misinterpreted,
>     the patch clears the invalid portion of the buffer.
>
>     This solves a problem (wrong write-protect setting detected) reported
>     by Maciej Rutecki and Peter Teoh.
>
> Regards
> Mike
> --
> 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/

--
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/