** Description changed: https://bugs.chromium.org/p/project-zero/issues/detail?id=1633 + + [Impact] + + Paging structure caches are not always flushed as part of a TLB + shootdown operation on x86. + + [Test Case] + + Ideally, we'd be able to use the test case described in the Project Zero + bug report. However, it depends on certain processor features as well as + custom kernel changes to make the proof-of-concept more likely to be + successful. + + Instead, I think we're limited to simple boot testing and then will need + to rely on our regular SRU testing. + + [Regression Potential] + + Considerable since the changes are in mm/ but these three patches have + been released in the upstream linux-stable trees for a while now.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1798897 Title: Linux: insufficient shootdown for paging-structure caches To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1798897/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
