ff00ff96a5
When we call intel_bios_is_valid_vbt(), size may not actually be the size of the VBT, but rather the size of the blob the VBT is contained in. For example, when mapping the PCI oprom, size will be the entire oprom size. We don't want to read beyond what is reported to be the VBT. So make sure we vbt->vbt_size makes sense and use that for the latter checks. v2: check for vbt_size after checking for vbt signature and give it a more meaningful error message (from Jani) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191108003602.33526-3-lucas.demarchi@intel.com |
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