Jason Wang de85ec8b07 virtio_pci: fix out of bound access for msix_names ... Fedora has received multiple reports of crashes when running 4.11 as a guest https://bugzilla.redhat.com/show_bug.cgi?id=1430297 https://bugzilla.redhat.com/show_bug.cgi?id=1434462 https://bugzilla.kernel.org/show_bug.cgi?id=194911 https://bugzilla.redhat.com/show_bug.cgi?id=1433899 The crashes are not always consistent but they are generally some flavor of oops or GPF in virtio related code. Multiple people have done bisections (Thank you Thorsten Leemhuis and Richard W.M. Jones) and found this commit to be at fault 07ec51480b is the first bad commit commit 07ec51480b Author: Christoph Hellwig <hch@lst.de> Date: Sun Feb 5 18:15:19 2017 +0100 virtio_pci: use shared interrupts for virtqueues The issue seems to be an out of bounds access to the msix_names array corrupting kernel memory. Fixes: 07ec51480b ("virtio_pci: use shared interrupts for virtqueues") Reported-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Tested-by: Richard W.M. Jones <rjones@redhat.com> Tested-by: Thorsten Leemhuis <linux@leemhuis.info>		2017-03-28 20:40:53 +03:00
..
Kconfig	docs: fix locations of several documents that got moved	2016-10-24 08:12:35 -02:00
Makefile	Add virtio-input driver.	2015-03-29 12:13:52 +10:30
virtio.c	virtio_net: refactor freeze/restore logic into virtnet reset logic	2017-02-07 10:05:12 -05:00
virtio_balloon.c	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
virtio_input.c	virtio: allow drivers to request IRQ affinity when creating VQs	2017-02-27 20:54:04 +02:00
virtio_mmio.c	virtio: allow drivers to request IRQ affinity when creating VQs	2017-02-27 20:54:04 +02:00
virtio_pci_common.c	virtio_pci: fix out of bound access for msix_names	2017-03-28 20:40:53 +03:00
virtio_pci_common.h	virtio: provide a method to get the IRQ affinity mask for a virtqueue	2017-02-27 20:54:05 +02:00
virtio_pci_legacy.c	virtio: provide a method to get the IRQ affinity mask for a virtqueue	2017-02-27 20:54:05 +02:00
virtio_pci_modern.c	virtio: provide a method to get the IRQ affinity mask for a virtqueue	2017-02-27 20:54:05 +02:00
virtio_ring.c	Revert "vring: Force use of DMA API for ARM-based systems with legacy devices"	2017-02-03 23:38:50 +02:00