From: Hans Zhang <18255117159@163.com>
To: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
Cc: manivannan.sadhasivam@linaro.org, kw@linux.com,
kishon@kernel.org, arnd@arndb.de,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-pci@vger.kernel.org, inux-kernel@vger.kernel.org,
rockswang7@gmail.com
Subject: Re: [PATCH] misc: pci_endpoint_test: fixed pci_resource_len return value out of bounds.
Date: Thu, 19 Dec 2024 07:28:13 -0500 [thread overview]
Message-ID: <ca7e3d52-c60d-ee19-ca6b-8fa5674197c2@163.com> (raw)
In-Reply-To: <4ed0496c-329b-ae7e-dce4-5d822e652d46@linux.intel.com>
On 12/18/24 10:00, Ilpo Järvinen wrote:
> I'm not sure how out-of-bounds access would happen. On which line you see
> that possibility?
Please see #L291
https://elixir.bootlin.com/linux/v6.13-rc3/source/drivers/misc/pci_endpoint_test.c#L291
>
>> If the bar size of the EP device exceeds
>
> BAR size
>
>> 4G, this bar_Size will be equal to 0.
>
> bar_size
>
> I think bar0 and bar1 information could simply be dropped since they're
> unrelated. I think this would be enough information:
>
> With 8GB BAR2, running pcitest -b 2 fails with "TEST FAILED".
>
Do I need to add the patch version?
Regards
Hans
next prev parent reply other threads:[~2024-12-19 12:28 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-17 12:12 [PATCH] misc: pci_endpoint_test: fixed pci_resource_len return value out of bounds Hans Zhang
2024-12-17 15:55 ` Niklas Cassel
2024-12-18 15:00 ` Ilpo Järvinen
2024-12-19 12:28 ` Hans Zhang [this message]
2024-12-19 12:36 ` Ilpo Järvinen
2024-12-20 3:09 ` Hans Zhang
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