diff options
Diffstat (limited to 'extras/mini-os/netfront.c')
| -rw-r--r-- | extras/mini-os/netfront.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/extras/mini-os/netfront.c b/extras/mini-os/netfront.c index 3159c30445..acdc76d994 100644 --- a/extras/mini-os/netfront.c +++ b/extras/mini-os/netfront.c @@ -120,6 +120,7 @@ moretodo: if (rx->status == NETIF_RSP_NULL) continue; int id = rx->id; + BUG_ON(id >= NET_TX_RING_SIZE); buf = &dev->rx_buffers[id]; page = (unsigned char*)buf->page; @@ -204,6 +205,7 @@ void network_tx_buf_gc(struct netfront_dev *dev) printk("packet error\n"); id = txrsp->id; + BUG_ON(id >= NET_TX_RING_SIZE); struct net_buffer* buf = &dev->tx_buffers[id]; gnttab_end_access(buf->gref); buf->gref=GRANT_INVALID_REF; @@ -510,6 +512,8 @@ void netfront_xmit(struct netfront_dev *dev, unsigned char* data,int len) struct net_buffer* buf; void* page; + BUG_ON(len > PAGE_SIZE); + down(&dev->tx_sem); local_irq_save(flags); |