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    SubjectRe: [PATCH 2/3] block: fail SCSI passthrough ioctls on partition devices
    On 01/05/2012 06:04 PM, Linus Torvalds wrote:
    >> > Foolish me who found a bug, and an exploitable one for that matter, and even
    >> > tried to fix it. Looks like security by obscurity would have served users better.
    > Umm. I just sent out what I think is what we*should* be doing.
    > You are the one who seems to just want to add hack upon hack to
    > things. THAT is what I really hate. It's not only in bad taste, it
    > *will* come back and bite us some day.

    I could have just written

    + ret = scsi_verify_blk_ioctl(bdev, cmd);
    + if (ret < 0)
    + return -ENOIOCTLCMD;

    It wouldn't have been any less hacky, but it would have looked quite
    normal and perhaps it would have escaped review. I knew I was working
    around messy code, and I made that clear. In that, I succeeded. :)

    > If you think that "security" is about adding new special cases and
    > hacks, you're so out to lunch that it isn't even funny. It is
    > absolutely the*last* thing you want.

    Thanks for the tip, :) and thanks for picking up the cleanup. I'll keep
    an eye and resubmit when the dust settles.


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      Last update: 2012-01-05 18:29    [W:0.020 / U:93.788 seconds]
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