diff options
Diffstat (limited to 'drivers/net/tun.c')
| -rw-r--r-- | drivers/net/tun.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index b183189f1853..fed9dfdfcc3b 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -2070,6 +2070,7 @@ static ssize_t tun_put_user(struct tun_struct *tun, struct virtio_net_hdr_v1_hash_tunnel hdr; struct virtio_net_hdr *gso; + memset(&hdr, 0, sizeof(hdr)); ret = tun_vnet_hdr_tnl_from_skb(tun->flags, tun->dev, skb, &hdr); if (ret) @@ -2394,8 +2395,10 @@ static int tun_xdp_one(struct tun_struct *tun, bool skb_xdp = false; struct page *page; - if (unlikely(datasize < ETH_HLEN)) + if (unlikely(datasize < ETH_HLEN)) { + put_page(virt_to_head_page(xdp->data)); return -EINVAL; + } xdp_prog = rcu_dereference(tun->xdp_prog); if (xdp_prog) { @@ -2437,6 +2440,7 @@ static int tun_xdp_one(struct tun_struct *tun, build: skb = build_skb(xdp->data_hard_start, buflen); if (!skb) { + put_page(virt_to_head_page(xdp->data)); ret = -ENOMEM; goto out; } |