From: Tom Rini <trini@konsulko.com>
To: u-boot@lists.denx.de
Subject: [PATCH 1/8] fdt_region: Check for a single root node of the correct name
Date: Mon, 15 Feb 2021 22:35:53 -0500 [thread overview]
Message-ID: <20210216033553.GN10169@bill-the-cat> (raw)
In-Reply-To: <20210216000812.2091481-2-sjg@chromium.org>
On Mon, Feb 15, 2021 at 05:08:05PM -0700, Simon Glass wrote:
> At present fdt_find_regions() assumes that the FIT is a valid devicetree.
> If the FIT has two root nodes this is currently not detected in this
> function, nor does libfdt's fdt_check_full() notice. Also it is possible
> for the root node to have a name even though it should not.
>
> Add checks for these and return -FDT_ERR_BADSTRUCTURE if a problem is
> detected.
>
> CVE-2021-27097
>
> Signed-off-by: Simon Glass <sjg@chromium.org>
> Reported-by: Bruce Monroe <bruce.monroe@intel.com>
> Reported-by: Arie Haenel <arie.haenel@intel.com>
> Reported-by: Julien Lenoir <julien.lenoir@intel.com>
Applied to u-boot/master, thanks!
--
Tom
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next prev parent reply other threads:[~2021-02-16 3:35 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-16 0:08 [PATCH 0/8] vboot: Correct vulnerabilities identified by Intel Simon Glass
2021-02-16 0:08 ` [PATCH 1/8] fdt_region: Check for a single root node of the correct name Simon Glass
2021-02-16 3:35 ` Tom Rini [this message]
2021-02-16 0:08 ` [PATCH 2/8] fit: Don't allow verification of images with @ nodes Simon Glass
2021-02-16 3:35 ` Tom Rini
2021-02-16 0:08 ` [PATCH 3/8] test: Add vboot_evil implementation Simon Glass
2021-02-16 3:36 ` Tom Rini
2021-02-16 0:08 ` [PATCH 4/8] test: Add tests for the 'evil' vboot attacks Simon Glass
2021-02-16 3:36 ` Tom Rini
2021-02-16 0:08 ` [PATCH 5/8] image: Adjust the workings of fit_check_format() Simon Glass
2021-02-16 3:36 ` Tom Rini
2021-02-17 13:30 ` Jesper Schmitz Mouridsen
2021-02-17 13:43 ` Tom Rini
2021-02-17 14:12 ` Jesper Schmitz Mouridsen
2021-02-16 0:08 ` [PATCH 6/8] image: Add an option to do a full check of the FIT Simon Glass
2021-02-16 3:36 ` Tom Rini
2021-02-16 0:08 ` [PATCH 7/8] libfdt: Check for multiple/invalid root nodes Simon Glass
2021-02-16 3:36 ` Tom Rini
2021-02-16 0:08 ` [PATCH 8/8] image: Check for unit addresses in FITs Simon Glass
2021-02-16 3:36 ` Tom Rini
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