Jason Wang 5f5a131865 virtio: properly validate address before accessing config ... There are several several issues in the current checking: - The check was based on the minus of unsigned values which can overflow - It was done after .{set|get}_config() which can lead crash when config_len is zero since vdev->config is NULL Fix this by: - Validate the address in virtio_pci_config_{read|write}() before .{set|get}_config - Use addition instead minus to do the validation Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Petr Matousek <pmatouse@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Petr Matousek <pmatouse@redhat.com> Message-id: 1367905369-10765-1-git-send-email-jasowang@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>		2013-05-08 15:54:21 -05:00
..
dataplane	hw: move virtio devices to hw/ subdirectories	2013-04-08 18:13:12 +02:00
Makefile.objs	virtio: simplify Makefile conditionals	2013-04-19 16:18:11 +02:00
vhost.c	virtio: remove virtiobindings.	2013-04-24 11:50:20 -05:00
virtio-balloon.c	virtio: cleanup: init and exit function.	2013-04-24 11:50:21 -05:00
virtio-bus.c	virtio: remove virtiobindings.	2013-04-24 11:50:20 -05:00
virtio-pci.c	virtio-pci: fix level interrupts	2013-05-08 15:54:21 -05:00
virtio-pci.h	virtio-pci: cleanup.	2013-04-24 11:50:20 -05:00
virtio-rng.c	virtio: cleanup: init and exit function.	2013-04-24 11:50:21 -05:00
virtio.c	virtio: properly validate address before accessing config	2013-05-08 15:54:21 -05:00