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libfdt: Check for multiple/invalid root nodes
authorSimon Glass <[email protected]>
Tue, 16 Feb 2021 00:08:11 +0000 (17:08 -0700)
committerTom Rini <[email protected]>
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 <[email protected]>
Reported-by: Bruce Monroe <[email protected]>
Reported-by: Arie Haenel <[email protected]>
Reported-by: Julien Lenoir <[email protected]>
scripts/dtc/libfdt/fdt_ro.c diff | blob | blame | history
test/py/tests/test_vboot.py diff | blob | blame | history
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