From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Cooper <andrew.cooper3@citrix.com>
Subject: Re: [PATCH] x86/hvm: avoid potential NULL pointer
	dereferences
Date: Fri, 10 Jul 2015 14:47:02 +0100
Message-ID: <559FCCD6.8090900@citrix.com>
References: <1436535924-17041-1-git-send-email-paul.durrant@citrix.com>
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To: Paul Durrant <paul.durrant@citrix.com>, xen-devel@lists.xen.org
Cc: Keir Fraser <keir@xen.org>, Jan Beulich <jbeulich@suse.com>
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On 10/07/15 14:45, Paul Durrant wrote:
> Coverity flagged that hvm_next_io_handler() will return NULL after
> calling domain_crash() and this will then lead to NULL pointer
> dereferences in calling functions.
>
> This patch checks for NULL in the callers and bails in that case.
>
> Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
> Cc: Keir Fraser <keir@xen.org>
> Cc: Jan Beulich <jbeulich@suse.com>
> Cc: Andrew Cooper <andrew.cooper3@citrix.com>

Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>