From: Luis Chamberlain <mcgrof@kernel.org>
To: Scott Branden <scott.branden@broadcom.com>
Cc: Mimi Zohar <zohar@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
David Brown <david.brown@linaro.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Shuah Khan <shuah@kernel.org>,
bjorn.andersson@linaro.org,
Shuah Khan <skhan@linuxfoundation.org>,
Arnd Bergmann <arnd@arndb.de>,
"Rafael J . Wysocki" <rafael@kernel.org>,
linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-fsdevel@vger.kernel.org,
BCM Kernel Feedback <bcm-kernel-feedback-list@broadcom.com>,
Olof Johansson <olof@lixom.net>,
Andrew Morton <akpm@linux-foundation.org>,
Dan Carpenter <dan.carpenter@oracle.com>,
Colin Ian King <colin.king@canonical.com>,
Kees Cook <keescook@chromium.org>, Takashi Iwai <tiwai@suse.de>,
linux-kselftest@vger.kernel.org, Andy Gross <agross@kernel.org>
Subject: Re: [PATCH v5 0/7] firmware: add partial read support in request_firmware_into_buf
Date: Sat, 16 May 2020 01:05:53 +0000 [thread overview]
Message-ID: <20200516010553.GF11244@42.do-not-panic.com> (raw)
In-Reply-To: <1e75c270-eae5-8f1d-ecc6-1fd2fb248f29@broadcom.com>
On Fri, May 15, 2020 at 04:28:08PM -0700, Scott Branden wrote:
> Hi Luis,
>
> On 2020-05-15 1:47 p.m., Luis Chamberlain wrote:
> > On Wed, May 13, 2020 at 12:23:59PM -0400, Mimi Zohar wrote:
> > > Hi Scott,
> > >
> > > On Thu, 2020-05-07 at 17:27 -0700, Scott Branden wrote:
> > > > Please consider this version series ready for upstream acceptance.
> > > >
> > > > This patch series adds partial read support in request_firmware_into_buf.
> > > > In order to accept the enhanced API it has been requested that kernel
> > > > selftests and upstreamed driver utilize the API enhancement and so
> > > > are included in this patch series.
> > > >
> > > > Also in this patch series is the addition of a new Broadcom VK driver
> > > > utilizing the new request_firmware_into_buf enhanced API.
> > > Up to now, the firmware blob was read into memory allowing IMA to
> > > verify the file signature. With this change, ima_post_read_file()
> > > will not be able to verify the file signature.
> > >
> > > (I don't think any of the other LSMs are on this hook, but you might
> > > want to Cc the LSM or integrity mailing list.)
> > Scott, so it sounds we need a resolution for pread for IMA for file
> > signature verification. It seems that can be addressed though. Feel
> > free to submit the u32 flag changes which you picked up on though in
> > the meantime.
> Sure, I can submit a new patch to change the existing enum to
> a u32.
Great thanks!
> For the new pread flags I am adding I could also leave as
> a u32 or change from a u32 to an enum since there is currently only
> one flag in use. Then, in the future if another flag was added we would
> need
> to change it back to a u32.
Yes that approach works well, enum for now.
Luis
prev parent reply other threads:[~2020-05-16 1:05 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-08 0:27 [PATCH v5 0/7] firmware: add partial read support in request_firmware_into_buf Scott Branden
2020-05-08 0:27 ` [PATCH v5 1/7] fs: introduce kernel_pread_file* support Scott Branden
2020-05-13 0:27 ` Luis Chamberlain
2020-05-13 6:23 ` Scott Branden
2020-05-13 6:51 ` Greg Kroah-Hartman
2020-05-13 8:16 ` Scott Branden
2020-05-13 18:39 ` Mimi Zohar
2020-05-13 18:53 ` Scott Branden
2020-05-13 18:57 ` Scott Branden
2020-05-13 19:03 ` Mimi Zohar
2020-05-13 19:18 ` Scott Branden
2020-05-13 19:39 ` Mimi Zohar
2020-05-13 19:41 ` Scott Branden
2020-05-13 21:20 ` Mimi Zohar
2020-05-13 21:28 ` Luis Chamberlain
2020-05-13 22:12 ` Mimi Zohar
2020-05-13 22:48 ` Scott Branden
2020-05-13 23:00 ` Mimi Zohar
2020-05-13 23:34 ` Kees Cook
2020-05-13 23:58 ` Mimi Zohar
2020-05-08 0:27 ` [PATCH v5 2/7] firmware: add offset to request_firmware_into_buf Scott Branden
2020-05-13 0:33 ` Luis Chamberlain
2020-05-13 18:35 ` Scott Branden
2020-05-15 20:44 ` Luis Chamberlain
2020-05-08 0:27 ` [PATCH v5 3/7] test_firmware: add partial read support for request_firmware_into_buf Scott Branden
2020-05-13 0:35 ` Luis Chamberlain
2020-05-08 0:27 ` [PATCH v5 4/7] firmware: test partial file reads of request_firmware_into_buf Scott Branden
2020-05-08 0:27 ` [PATCH v5 5/7] bcm-vk: add bcm_vk UAPI Scott Branden
2020-05-08 0:27 ` [PATCH v5 7/7] MAINTAINERS: bcm-vk: add maintainer for Broadcom VK Driver Scott Branden
[not found] ` <20200508002739.19360-7-scott.branden@broadcom.com>
2020-05-13 0:38 ` [PATCH v5 6/7] misc: bcm-vk: add Broadcom VK driver Luis Chamberlain
2020-05-13 6:31 ` Scott Branden
2020-05-13 6:50 ` Greg Kroah-Hartman
2020-05-13 12:30 ` Luis Chamberlain
2020-05-13 18:39 ` Scott Branden
2020-05-13 16:23 ` [PATCH v5 0/7] firmware: add partial read support in request_firmware_into_buf Mimi Zohar
2020-05-15 20:47 ` Luis Chamberlain
2020-05-15 23:28 ` Scott Branden
2020-05-16 1:05 ` Luis Chamberlain [this message]
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