greybus: manifest: validate string descriptor header

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identify_descriptor() computes a string descriptor size from
desc->string.length.

Require the descriptor to contain the fixed string descriptor header
before reading the variable string length. The existing descriptor-size
check then reports the short descriptor.

Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Link: https://patch.msgid.link/20260706091935.78020-1-pengpeng@iscas.ac.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Pengpeng Hou 2026-07-06 17:19:35 +08:00 • committed by Greg Kroah-Hartman

parent 7d3a708af7

commit 18b6510f64

1 changed files with 2 additions and 0 deletions

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drivers/greybus/manifest.c

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