netdev - Re: [PATCH] rds: fix crash in rds_info

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Message-Id: <20200520.140842.1711606625827492143.davem@davemloft.net>
Date:   Wed, 20 May 2020 14:08:42 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     jhubbard@...dia.com
Cc:     syzbot+118ac0af4ac7f785a45b@...kaller.appspotmail.com,
        akpm@...ux-foundation.org, kuba@...nel.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        linux-rdma@...r.kernel.org, netdev@...r.kernel.org,
        rds-devel@....oracle.com, santosh.shilimkar@...cle.com,
        syzkaller-bugs@...glegroups.com
Subject: Re: [PATCH] rds: fix crash in rds_info_getsockopt()

From: John Hubbard <jhubbard@...dia.com>
Date: Wed, 20 May 2020 12:41:47 -0700

> The conversion to pin_user_pages() had a bug: it overlooked
> the case of allocation of pages failing. Fix that by restoring
> an equivalent check.
> 
> Reported-by: syzbot+118ac0af4ac7f785a45b@...kaller.appspotmail.com
> Fixes: dbfe7d74376e ("rds: convert get_user_pages() --> pin_user_pages()")
> Signed-off-by: John Hubbard <jhubbard@...dia.com>

Applied to net-next, thanks.