Public bug reported: [Impact]
Initialize memory of request offers message to be sent to the host so padding or uninitialized fields do not leak guest memory contents. Patch: https://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git/commit/?h=hyperv- next [Test case] Testing the information leakage to the host is not viable, but since the patch the vmbus layer that affects all the hyper-v drivers, a boot test on Hyper-V and on Azure should be enough to validate the patch, considering how small the change is. [Potential regression] The change is very restricted, but on an eventual regression it might affect any of the hyperv guest drivers. ** Affects: linux-azure-cvm (Ubuntu) Importance: Undecided Status: New ** Affects: linux-azure-cvm (Ubuntu Focal) Importance: Undecided Assignee: Marcelo Cerri (mhcerri) Status: In Progress ** Also affects: linux-azure-cvm (Ubuntu Focal) Importance: Undecided Status: New ** Changed in: linux-azure-cvm (Ubuntu Focal) Status: New => In Progress ** Changed in: linux-azure-cvm (Ubuntu Focal) Assignee: (unassigned) => Marcelo Cerri (mhcerri) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-azure-cvm in Ubuntu. https://bugs.launchpad.net/bugs/1956793 Title: linux-azure-cvm: Avoid leaking guest memory when communicating with the host Status in linux-azure-cvm package in Ubuntu: New Status in linux-azure-cvm source package in Focal: In Progress Bug description: [Impact] Initialize memory of request offers message to be sent to the host so padding or uninitialized fields do not leak guest memory contents. Patch: https://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git/commit/?h=hyperv- next [Test case] Testing the information leakage to the host is not viable, but since the patch the vmbus layer that affects all the hyper-v drivers, a boot test on Hyper-V and on Azure should be enough to validate the patch, considering how small the change is. [Potential regression] The change is very restricted, but on an eventual regression it might affect any of the hyperv guest drivers. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-azure-cvm/+bug/1956793/+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
