This bug was fixed in the package linux - 5.15.0-76.83 --------------- linux (5.15.0-76.83) jammy; urgency=medium
* jammy/linux: 5.15.0-76.83 -proposed tracker (LP: #2023905) * cls_flower: off-by-one in fl_set_geneve_opt (LP: #2023577) - net/sched: flower: fix possible OOB write in fl_set_geneve_opt() * Some INVLPG implementations can leave Global translations unflushed when PCIDs are enabled (LP: #2023220) - x86/mm: Avoid incomplete Global INVLPG flushes -- Thadeu Lima de Souza Cascardo <casca...@canonical.com> Thu, 15 Jun 2023 14:47:18 -0300 ** Changed in: linux (Ubuntu Jammy) Status: Fix Committed => Fix Released ** Changed in: linux (Ubuntu Lunar) Status: Fix Committed => Fix Released -- 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 Committed 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 Committed Status in linux source package in Kinetic: Fix Committed 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