penguin42 on Nostr: Anyone got any more detail of the #amd #sinkclose bug? I found a 'redacted' version ...
Anyone got any more detail of the #amd #sinkclose bug?
I found a 'redacted' version of the Defcon PDF; it seems to be suggesitng poking the 'top of memory' msr and then getting the hardware confused between PCI/RAM/etc - but most of the slides are missing:
https://media.defcon.org/DEF%20CON%2032/DEF%20CON%2032%20presentations/DEF%20CON%2032%20-%20Enrique%20Nissim%20Krzysztof%20Okupski%20-%20AMD%20Sinkclose%20Universal%20Ring-2%20Privilege%20Escalation%20Redacted.pdf
I found a 'redacted' version of the Defcon PDF; it seems to be suggesitng poking the 'top of memory' msr and then getting the hardware confused between PCI/RAM/etc - but most of the slides are missing:
https://media.defcon.org/DEF%20CON%2032/DEF%20CON%2032%20presentations/DEF%20CON%2032%20-%20Enrique%20Nissim%20Krzysztof%20Okupski%20-%20AMD%20Sinkclose%20Universal%20Ring-2%20Privilege%20Escalation%20Redacted.pdf