Re: BROP mitigation

2022-12-21 Thread Theo de Raadt
Theo de Raadt wrote: > A few weeks ago a conversation about retguard (a diff is probably > coming) caused me re-consider & re-read the BROP paper > > https://www.scs.stanford.edu/brop/bittau-brop.pdf new version of the diff. The small piece of locking has been improved by using a private

BROP mitigation

2022-12-20 Thread Theo de Raadt
A few weeks ago a conversation about retguard (a diff is probably coming) caused me re-consider & re-read the BROP paper https://www.scs.stanford.edu/brop/bittau-brop.pdf After lots of details, page 8 has a table summarizing the attack process. Step 5 contains the text "The attacker can