From: Greg KH <gregkh@linuxfoundation.org>
To: Scott Mayhew <smayhew@redhat.com>
Cc: stable@vger.kernel.org, bfields@redhat.com
Subject: Re: [PATCH 4.19] sunrpc: fix 4 more call sites that were using stack memory with a scatterlist
Date: Thu, 21 Feb 2019 13:23:42 +0100 [thread overview]
Message-ID: <20190221122342.GA12382@kroah.com> (raw)
In-Reply-To: <20190219193627.15619-1-smayhew@redhat.com>
On Tue, Feb 19, 2019 at 02:36:27PM -0500, Scott Mayhew wrote:
> (cherry picked from commit e7afe6c1d486b516ed586dcc10b3e7e3e85a9c2b)
>
> While trying to reproduce a reported kernel panic on arm64, I discovered
> that AUTH_GSS basically doesn't work at all with older enctypes on arm64
> systems with CONFIG_VMAP_STACK enabled. It turns out there still a few
> places using stack memory with scatterlists, causing krb5_encrypt() and
> krb5_decrypt() to produce incorrect results (or a BUG if CONFIG_DEBUG_SG
> is enabled).
>
> Tested with cthon on v4.0/v4.1/v4.2 with krb5/krb5i/krb5p using
> des3-cbc-sha1 and arcfour-hmac-md5.
>
> Signed-off-by: Scott Mayhew <smayhew@redhat.com>
> Cc: stable@vger.kernel.org
> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
>
> Conflicts:
> net/sunrpc/auth_gss/gss_krb5_seqnum.c
These two lines are not needed :)
Anyway, thanks for the backport, now queued up for both trees.
greg k-h
prev parent reply other threads:[~2019-02-21 12:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-19 19:36 [PATCH 4.19] sunrpc: fix 4 more call sites that were using stack memory with a scatterlist Scott Mayhew
2019-02-19 21:38 ` J. Bruce Fields
2019-02-21 12:23 ` Greg KH [this message]
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