@spendergrsec @paxteam After PAX_PRIVATE_KSTACKS, are there any plans to mitigate the race in userland or do you already have mitigations in place?
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no & no. the mechanism itself would work for userland (PKU can even do a coarse-grained version w/o kernel assistance) but rewriting all the intentional remote stack sharing code is too much work.
Mar 25, 2022 · 1:15 PM UTC
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