From: Greg KH <gregkh@linuxfoundation.org>
To: Joe Jin <joe.jin@oracle.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
John Sobecki <john.sobecki@oracle.com>,
"DONGLI.ZHANG" <dongli.zhang@oracle.com>,
"xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
stable@vger.kernel.org
Subject: Re: [PATCH] xen-swiotlb: use actually allocated size on check physical contiguous
Date: Tue, 4 Sep 2018 21:13:30 +0200 [thread overview]
Message-ID: <20180904191330.GA16532@kroah.com> (raw)
In-Reply-To: <d578b69a-848b-2c86-175a-1b1933d82a36@oracle.com>
On Tue, Sep 04, 2018 at 11:16:58AM -0700, Joe Jin wrote:
> xen_swiotlb_{alloc,free}_coherent() actually allocate/free size by order
> but used the required size to check if address is physical contiguous,
> if first pages are physical contiguous also passed
> range_straddles_page_boundary() check, but others were not it will
> lead kernel panic.
>
> Signed-off-by: Joe Jin <joe.jin@oracle.com>
> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
> ---
> drivers/xen/swiotlb-xen.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
<formletter>
This is not the correct way to submit patches for inclusion in the
stable kernel tree. Please read:
https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.
</formletter>
next prev parent reply other threads:[~2018-09-04 23:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-04 18:16 [PATCH] xen-swiotlb: use actually allocated size on check physical contiguous Joe Jin
2018-09-04 19:13 ` Greg KH [this message]
2018-09-04 23:14 ` [Xen-devel] " Dongli Zhang
2018-09-04 23:36 ` Andrew Cooper
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