Category Archives: exception

Breaking Into a Secure Facility: STM32 Flash

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In a perfect world, everything would be open source. Our current world, on the other hand, has a lot of malicious actors and people willing to exploit trade secrets if given the opportunity, so chip manufacturers take a lot of measures to protect their customers’ products’ firmware. These methods aren’t …read more

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VU#631579: Hardware debug exception documentation may result in unexpected behavior

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In some circumstances,some operating systems or hypervisors may not expect or properly handle an Intel architecture hardware debug exception. The error appears to be due to developer interpretation of existing documentation for certain Intel architecture interrupt/exception instructions,namely MOV SS and POP SS. Continue reading VU#631579: Hardware debug exception documentation may result in unexpected behavior→