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(parent: 6f3c2d8) | patch
libfdt: Check for multiple/invalid root nodes
authorSimon Glass <sjg@chromium.org>
Tue, 16 Feb 2021 00:08:11 +0000 (17:08 -0700)
committerTom Rini <trini@konsulko.com>
Tue, 16 Feb 2021 03:31:53 +0000 (22:31 -0500)
commit124c255731c76a2b09587378b2bcce561bcd3f2d
tree03e9ce18107e891c917d48b177560370fc2f6708tree | snapshot
parent6f3c2d8aa5e6cbd80b5e869bbbddecb66c329d01commit | diff
libfdt: Check for multiple/invalid root nodes

It is possible to construct a devicetree blob with multiple root nodes.
Update fdt_check_full() to check for this, along with a root node with an
invalid name.

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>
scripts/dtc/libfdt/fdt_ro.c diff | blob | history
test/py/tests/test_vboot.py diff | blob | history
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