efi: apple-properties: validate setup data header length

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map_properties() remaps the Apple properties setup_data payload
and then reads the properties header fields.

Reject a truncated payload before checking the header version and length
fields.

Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

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Pengpeng Hou 2026-07-06 17:18:13 +08:00 • committed by Ard Biesheuvel

parent 01787ed2fd

commit eb01ffabeb

1 changed files with 4 additions and 1 deletions

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drivers/firmware/efi/apple-properties.c

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