ARM announces Armv8.9 and Armv9.4

By: Michael S (, September 30, 2022 4:21 am
Room: Moderated Discussions
Doug S ( on September 29, 2022 10:39 pm wrote:
> noko ( on September 29, 2022 8:02 pm wrote:
> > - ARM's 3rd try to kill ROP, this time with a shadow stack
> Legacy cruft in ISAs used to mean no longer needed 16 bit instruction formats, then
> it meant multiple generations of multimedia instructions. These days it means multiple
> attempts to address security issues, with fixes for ROP, ASLR, speculation attacks and
> so on as those protections are eventually found lacking and rendered obsolete.

10 years ago they had perfect opportunity to prevent 99.9% of ROP attacks by making official aarch64
ABI dual-stack.
They didn't do it back then. And now they construct band-aids.

Not that I think that nowadays ROP is a major threat. May be, it was 20-25 years ago, but things changes.
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TopicPosted ByDate
ARM announces Armv8.9 and Armv9.4noko2022/09/29 08:02 PM
  ARM announces Armv8.9 and Armv9.4Doug S2022/09/29 10:39 PM
    ARM announces Armv8.9 and Armv9.4Michael S2022/09/30 04:21 AM
  ARM announces Armv8.9 and Armv9.4Adrian2022/09/30 01:55 AM
    ARM announces Armv8.9 and Armv9.4Michael S2022/09/30 04:28 AM
  ARM announces Armv8.9 and Armv9.4dmcq2022/09/30 09:11 AM
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