This bug is awaiting verification that the linux-azure/5.4.0-1113.119 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags removed: verification-done-focal ** Tags added: kernel-spammed-focal-linux-azure verification-needed-focal -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-6.1 in Ubuntu. https://bugs.launchpad.net/bugs/2023220 Title: Some INVLPG implementations can leave Global translations unflushed when PCIDs are enabled Status in linux package in Ubuntu: Fix Released Status in linux-oem-6.1 package in Ubuntu: Invalid Status in linux source package in Trusty: Incomplete Status in linux-oem-6.1 source package in Trusty: Invalid Status in linux source package in Xenial: Incomplete Status in linux-oem-6.1 source package in Xenial: Invalid Status in linux source package in Bionic: Incomplete Status in linux-oem-6.1 source package in Bionic: Invalid Status in linux source package in Focal: Fix Released Status in linux-oem-6.1 source package in Focal: Invalid Status in linux source package in Jammy: Fix Released Status in linux-oem-6.1 source package in Jammy: Fix Released Status in linux source package in Kinetic: Fix Released Status in linux-oem-6.1 source package in Kinetic: Invalid Status in linux source package in Lunar: Fix Released Status in linux-oem-6.1 source package in Lunar: Invalid Status in linux source package in Mantic: Fix Released Status in linux-oem-6.1 source package in Mantic: Invalid Bug description: [Impact] When PCIDs are enabled on Alder Lake and Raptor Lake, INVLPG will not flush the global TLB entries. This can lead to info leak or undefined behavior. [Mitigation] Boot with nopcid on affected systems. [Test case] There is no particular test case. [Potential regressions] This affects performance on the affected systems. TLB behavior could also be affected. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2023220/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
