diff options
Diffstat (limited to 'net/ipv4/ping.c')
| -rw-r--r-- | net/ipv4/ping.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c index 5b2635e69a92..68d77b1f1495 100644 --- a/net/ipv4/ping.c +++ b/net/ipv4/ping.c @@ -609,15 +609,15 @@ int ping_getfrag(void *from, char *to, fraglen -= sizeof(struct icmphdr); if (fraglen < 0) BUG(); - if (csum_and_copy_from_iter(to + sizeof(struct icmphdr), + if (!csum_and_copy_from_iter_full(to + sizeof(struct icmphdr), fraglen, &pfh->wcheck, - &pfh->msg->msg_iter) != fraglen) + &pfh->msg->msg_iter)) return -EFAULT; } else if (offset < sizeof(struct icmphdr)) { BUG(); } else { - if (csum_and_copy_from_iter(to, fraglen, &pfh->wcheck, - &pfh->msg->msg_iter) != fraglen) + if (!csum_and_copy_from_iter_full(to, fraglen, &pfh->wcheck, + &pfh->msg->msg_iter)) return -EFAULT; } @@ -642,6 +642,8 @@ static int ping_v4_push_pending_frames(struct sock *sk, struct pingfakehdr *pfh, { struct sk_buff *skb = skb_peek(&sk->sk_write_queue); + if (!skb) + return 0; pfh->wcheck = csum_partial((char *)&pfh->icmph, sizeof(struct icmphdr), pfh->wcheck); pfh->icmph.checksum = csum_fold(pfh->wcheck); |