gpu: nova-core: vbios: read BitToken using FromBytes

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If `header.token_size` is smaller than `BitToken`, then we currently can
read past the end of `image.base.data`. Use checked arithmetic for
computing offsets and simplify reading it in using `FromBytes`.

Fixes: dc70c6ae24 ("gpu: nova-core: vbios: Add support to look up PMU table in FWSEC")
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Eliot Courtney <ecourtney@nvidia.com>
Link: https://patch.msgid.link/20260525-fix-vbios-v5-4-e5e455251537@nvidia.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

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Eliot Courtney 2026-05-25 22:57:22 +09:00 • committed by Danilo Krummrich

parent 33f1402bcf

commit 237c252be0

1 changed files with 19 additions and 20 deletions

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drivers/gpu/nova-core/vbios.rs

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