block: sed-opal: validate response token bounds - #1139
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The OPAL response parser checks the containing subpacket but does not prove each variable-width token is within that subpacket before reading its header or payload. It can also append beyond the fixed token metadata array. Pass the remaining subpacket length to atom parsers, validate every header and token extent, check the declared subpacket length against the supplied response, and reject responses with more than MAX_TOKS tokens. Fixes: 455a7b2 ("block: Add Sed-opal library") Assisted-by: Codex:gpt-5 Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
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Pull request for series with
subject: block: sed-opal: validate response token bounds
version: 2
url: https://patchwork.kernel.org/project/linux-block/list/?series=1145930