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| author | Jason Wang <jasowang@redhat.com> | 2015-03-20 14:07:50 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-03-25 13:39:25 +0100 |
| commit | 7e0e736ecdfeac6d3517513d3a702304e4f6cf59 (patch) | |
| tree | a3afabb60e43593737ee49276d8019384da7b5aa /arch_init.c | |
| parent | 7976a6d23151c780474bdac106f3cf1343a2d6ca (diff) | |
| download | focaccia-qemu-7e0e736ecdfeac6d3517513d3a702304e4f6cf59.tar.gz focaccia-qemu-7e0e736ecdfeac6d3517513d3a702304e4f6cf59.zip | |
virtio-net: validate backend queue numbers against bus limitation
We don't validate the backend queue numbers against bus limitation, this will easily crash qemu if it exceeds the limitation which will hit the abort() in virtio_del_queue(). An example is trying to starting a virtio-net device with 256 queues. E.g: ./qemu-system-x86_64 -netdev tap,id=hn0,queues=256 -device virtio-net-pci,netdev=hn0 Fixing this by doing the validation and fail early. Cc: Michael S. Tsirkin <mst@redhat.com> Cc: qemu-stable <qemu-stable@nongnu.org> Signed-off-by: Jason Wang <jasowang@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'arch_init.c')
0 files changed, 0 insertions, 0 deletions