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Re: [Qemu-devel] CONFIG_QEMU patch

From: Rusty Russell
Subject: Re: [Qemu-devel] CONFIG_QEMU patch
Date: Thu, 10 Jul 2003 18:29:45 +1000

In message <address@hidden> you write:
>    From: Rusty Russell <address@hidden>
>    Date: Thu, 10 Jul 2003 15:46:24 +1000
>    and also avoids a user access trap in
>    copy_mount_options() which OOPSes under QEMU.
> Is this a bug in this kernel code or a QEMU issue?

QEMU, definitely.  copy_mount_options() is the only place where the
copy_from_user regularly fails.  That's mainly because it's bad code,
but it's a useful canary for exactly this readson.

  Anyone who quotes me in their sig is an idiot. -- Rusty Russell.

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