diff options
Diffstat (limited to 'net/ipv6/mcast.c')
| -rw-r--r-- | net/ipv6/mcast.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c index 87c699d57b36..0566ab03ddbe 100644 --- a/net/ipv6/mcast.c +++ b/net/ipv6/mcast.c @@ -580,7 +580,7 @@ done: } int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf, - struct sockaddr_storage __user *p) + sockptr_t optval, size_t ss_offset) { struct ipv6_pinfo *inet6 = inet6_sk(sk); const struct in6_addr *group; @@ -612,8 +612,7 @@ int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf, copycount = count < gsf->gf_numsrc ? count : gsf->gf_numsrc; gsf->gf_numsrc = count; - - for (i = 0; i < copycount; i++, p++) { + for (i = 0; i < copycount; i++) { struct sockaddr_in6 *psin6; struct sockaddr_storage ss; @@ -621,8 +620,9 @@ int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf, memset(&ss, 0, sizeof(ss)); psin6->sin6_family = AF_INET6; psin6->sin6_addr = psl->sl_addr[i]; - if (copy_to_user(p, &ss, sizeof(ss))) + if (copy_to_sockptr_offset(optval, ss_offset, &ss, sizeof(ss))) return -EFAULT; + ss_offset += sizeof(ss); } return 0; } |