search for: eth_prepare_mac_addr_change

Displaying 8 results from an estimated 8 matches for "eth_prepare_mac_addr_change".

[PATCH] virtio-net: Fix DMA-from-the-stack in virtnet_set_mac_address()
2016 Dec 06
3
[PATCH] virtio-net: Fix DMA-from-the-stack in virtnet_set_mac_address()
...rs/net/virtio_net.c @@ -969,12 +969,17 @@ static int virtnet_set_mac_address(struct net_device *dev, void *p) struct virtnet_info *vi = netdev_priv(dev); struct virtio_device *vdev = vi->vdev; int ret; - struct sockaddr *addr = p; + struct sockaddr *addr; struct scatterlist sg; - ret = eth_prepare_mac_addr_change(dev, p); + addr = kmalloc(sizeof(*addr), GFP_KERNEL); + if (!addr) + return -ENOMEM; + memcpy(addr, p, sizeof(*addr)); + + ret = eth_prepare_mac_addr_change(dev, addr); if (ret) - return ret; + goto out; if (virtio_has_feature(vdev, VIRTIO_NET_F_CTRL_MAC_ADDR)) { sg_init_one(&sg, ad...
[PATCH] virtio-net: Fix DMA-from-the-stack in virtnet_set_mac_address()
2016 Dec 06
3
[PATCH] virtio-net: Fix DMA-from-the-stack in virtnet_set_mac_address()
...rs/net/virtio_net.c @@ -969,12 +969,17 @@ static int virtnet_set_mac_address(struct net_device *dev, void *p) struct virtnet_info *vi = netdev_priv(dev); struct virtio_device *vdev = vi->vdev; int ret; - struct sockaddr *addr = p; + struct sockaddr *addr; struct scatterlist sg; - ret = eth_prepare_mac_addr_change(dev, p); + addr = kmalloc(sizeof(*addr), GFP_KERNEL); + if (!addr) + return -ENOMEM; + memcpy(addr, p, sizeof(*addr)); + + ret = eth_prepare_mac_addr_change(dev, addr); if (ret) - return ret; + goto out; if (virtio_has_feature(vdev, VIRTIO_NET_F_CTRL_MAC_ADDR)) { sg_init_one(&sg, ad...
[PATCH v4 0/3] make mac programming for virtio net more robust
2013 Jan 20
3
[PATCH v4 0/3] make mac programming for virtio net more robust
From: Amos Kong <akong at redhat.com> Currenly mac is programmed byte by byte. This means that we have an intermediate step where mac is wrong. Third patch introduced a new vq control command to set mac address, it's atomic. V2: check return of sending command, delay eth_mac_addr() V3: restore software address when fail to set hardware address V4: split eth_mac_addr, fix error handle
[PATCH v4 0/3] make mac programming for virtio net more robust
2013 Jan 20
3
[PATCH v4 0/3] make mac programming for virtio net more robust
From: Amos Kong <akong at redhat.com> Currenly mac is programmed byte by byte. This means that we have an intermediate step where mac is wrong. Third patch introduced a new vq control command to set mac address, it's atomic. V2: check return of sending command, delay eth_mac_addr() V3: restore software address when fail to set hardware address V4: split eth_mac_addr, fix error handle
[PATCH v5 0/3] make mac programming for virtio net more robust
2013 Jan 21
4
[PATCH v5 0/3] make mac programming for virtio net more robust
Currenly mac is programmed byte by byte. This means that we have an intermediate step where mac is wrong. Third patch introduced a new vq control command to set mac address, it's atomic. V2: check return of sending command, delay eth_mac_addr() V3: restore software address when fail to set hardware address V4: split eth_mac_addr, fix error handle V5: rebase patches to net-next tree Amos
[PATCH v5 0/3] make mac programming for virtio net more robust
2013 Jan 21
4
[PATCH v5 0/3] make mac programming for virtio net more robust
Currenly mac is programmed byte by byte. This means that we have an intermediate step where mac is wrong. Third patch introduced a new vq control command to set mac address, it's atomic. V2: check return of sending command, delay eth_mac_addr() V3: restore software address when fail to set hardware address V4: split eth_mac_addr, fix error handle V5: rebase patches to net-next tree Amos
[PATCH] net: Use kmemdup instead of kmalloc and memcpy
2016 Dec 23
1
[PATCH] net: Use kmemdup instead of kmalloc and memcpy
...+1206,9 @@ static int virtnet_set_mac_address(struct net_device *dev, void *p) struct sockaddr *addr; struct scatterlist sg; - addr = kmalloc(sizeof(*addr), GFP_KERNEL); + addr = kmemdup(p, sizeof(*addr), GFP_KERNEL); if (!addr) return -ENOMEM; - memcpy(addr, p, sizeof(*addr)); ret = eth_prepare_mac_addr_change(dev, addr); if (ret) -- 2.7.4
[PATCH] net: Use kmemdup instead of kmalloc and memcpy
2016 Dec 23
1
[PATCH] net: Use kmemdup instead of kmalloc and memcpy
...+1206,9 @@ static int virtnet_set_mac_address(struct net_device *dev, void *p) struct sockaddr *addr; struct scatterlist sg; - addr = kmalloc(sizeof(*addr), GFP_KERNEL); + addr = kmemdup(p, sizeof(*addr), GFP_KERNEL); if (!addr) return -ENOMEM; - memcpy(addr, p, sizeof(*addr)); ret = eth_prepare_mac_addr_change(dev, addr); if (ret) -- 2.7.4