diff options
| author | Xuan Zhuo <xuanzhuo@linux.alibaba.com> | 2023-10-19 11:49:02 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-11-01 09:19:59 -0400 |
| commit | e0592acd1ef2497b861ef7ed6eda14b092b1e667 (patch) | |
| tree | ba4a09255d46d09b320943599ac73b56098cfd00 /drivers/virtio/virtio_pci_modern_dev.c | |
| parent | fafb51a67fb883eb2dde352539df939a251851be (diff) | |
virtio_pci: add check for common cfg size
Some buggy devices, the common cfg size may not match the features.
This patch checks the common cfg size for the
features(VIRTIO_F_NOTIF_CONFIG_DATA, VIRTIO_F_RING_RESET). When the
common cfg size does not match the corresponding feature, we fail the
probe and print error message.
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20231019034902.7346-1-xuanzhuo@linux.alibaba.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/virtio/virtio_pci_modern_dev.c')
| -rw-r--r-- | drivers/virtio/virtio_pci_modern_dev.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/virtio/virtio_pci_modern_dev.c b/drivers/virtio/virtio_pci_modern_dev.c index d312443d6569..e2a1fe7bb66c 100644 --- a/drivers/virtio/virtio_pci_modern_dev.c +++ b/drivers/virtio/virtio_pci_modern_dev.c @@ -296,7 +296,7 @@ int vp_modern_probe(struct virtio_pci_modern_device *mdev) mdev->common = vp_modern_map_capability(mdev, common, sizeof(struct virtio_pci_common_cfg), 4, 0, sizeof(struct virtio_pci_modern_common_cfg), - NULL, NULL); + &mdev->common_len, NULL); if (!mdev->common) goto err_map_common; mdev->isr = vp_modern_map_capability(mdev, isr, sizeof(u8), 1, |