xemu/hw/virtio
Dr. David Alan Gilbert c44317efec vhost: Build temporary section list and deref after commit
Igor spotted that there's a race, where a region that's unref'd
in a _del callback might be free'd before the set_mem_table call in
the _commit callback, and thus the vhost might end up using free memory.

Fix this by building a complete temporary sections list, ref'ing every
section (during add and nop) and then unref'ing the whole list right
at the end of commit.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-02-08 21:06:40 +02:00
..
Makefile.objs stubs: move vhost stubs to stubs/vhost.o 2017-01-16 17:52:35 +01:00
trace-events Revert "vhost: add traces for memory listeners" 2018-02-08 19:26:51 +02:00
vhost-backend.c vhost: fix a memory leak 2017-08-02 00:13:25 +03:00
vhost-stub.c stubs: move vhost stubs to stubs/vhost.o 2017-01-16 17:52:35 +01:00
vhost-user.c vhost: remove assertion to prevent crash 2018-01-18 21:52:39 +02:00
vhost-vsock.c hw: use "qemu/osdep.h" as first #include in source files 2017-12-18 17:07:02 +03:00
vhost.c vhost: Build temporary section list and deref after commit 2018-02-08 21:06:40 +02:00
virtio-balloon.c hw/virtio-balloon: remove old i386 dependency 2017-12-18 17:07:02 +03:00
virtio-bus.c virtio: remove event notifier cleanup call on de-assign 2018-02-08 21:06:26 +02:00
virtio-crypto-pci.c virtio-crypto: Convert to DEFINE_PROP_LINK 2017-07-14 12:04:43 +02:00
virtio-crypto.c virtio-crypto: Convert to DEFINE_PROP_LINK 2017-07-14 12:04:43 +02:00
virtio-mmio.c virtio-mmio: switch to linux headers 2017-01-18 22:59:53 +02:00
virtio-pci.c qdev: use device_class_set_parent_realize/unrealize/reset() 2018-02-05 13:54:38 +01:00
virtio-pci.h vhost-user-blk: introduce a new vhost-user-blk host device 2018-01-18 21:52:37 +02:00
virtio-rng.c virtio-rng: Convert to DEFINE_PROP_LINK 2017-07-14 12:04:42 +02:00
virtio.c virtio: improve virtio devices initialization time 2018-02-08 21:06:40 +02:00