Michael S. Tsirkin d4ff27e92b virtio-pci: fix use after free ...

commit 72103bd128 upstream.

Commit 31a3ddda16 introduced
a use after free in virtio-pci. The main issue is
that the release method signals removal of the virtio device,
while remove signals removal of the pci device.

For example, on driver removal or hot-unplug,
virtio_pci_release_dev is called before virtio_pci_remove.
We then might get a crash as virtio_pci_remove tries to use the
device freed by virtio_pci_release_dev.

We allocate/free all resources together with the
pci device, so we can leave the release method empty.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2011-11-21 14:31:14 -08:00

..

config.c

…

Kconfig

virtio: balloon driver

2008-02-04 23:50:13 +11:00

Makefile

virtio: balloon driver

2008-02-04 23:50:13 +11:00

virtio_balloon.c

virtio balloon: kill tell-host-first logic

2011-05-30 11:14:13 +09:30

virtio_pci.c

virtio-pci: fix use after free

2011-11-21 14:31:14 -08:00

virtio_ring.c

virtio: add api for delayed callbacks

2011-05-30 11:14:16 +09:30

virtio.c

virtio: fix format of sysfs driver/vendor files

2010-11-24 15:21:12 +10:30