https://lists.ubuntu.com/archives/kernel-team/2018-January/089675.html
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1742480 Title: [Hyper-V] storvsc: do not assume SG list is continuous when doing bounce buffers Status in linux package in Ubuntu: Fix Released Status in linux source package in Trusty: Triaged Bug description: All linux kernels 4.1 and prior use bounce buffers, and there is a data corruption vulnerability on Hyper-V without the following patch. storvsc checks the SG list for gaps before passing them to Hyper-v device. If there are gaps, data is copied to a bounce buffer and a continuous data buffer is passed to Hyper-V. The check on gaps assumes SG list is continuous, and not chained. This is not always true. Failing the check may result in incorrect I/O data passed to the Hyper-v device. This code path is not used post Linux 4.1. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742480/+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
