diff options
| -rw-r--r-- | net/ipv4/netfilter/ip_tables.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c index 4586af3..cc896fe 100644 --- a/net/ipv4/netfilter/ip_tables.c +++ b/net/ipv4/netfilter/ip_tables.c @@ -1098,7 +1098,7 @@ static int compat_calc_entry(struct ipt_entry *e, unsigned int entry_offset; int off, i, ret; - off = 0; + off = sizeof(struct ipt_entry) - sizeof(struct compat_ipt_entry); entry_offset = (void *)e - base; IPT_MATCH_ITERATE(e, compat_calc_match, &off); t = ipt_get_target(e); @@ -1501,6 +1501,8 @@ compat_copy_entry_to_user(struct ipt_entry *e, void __user **dstptr, goto out; *dstptr += sizeof(struct compat_ipt_entry); + *size -= sizeof(struct ipt_entry) - sizeof(struct compat_ipt_entry); + ret = IPT_MATCH_ITERATE(e, xt_compat_match_to_user, dstptr, size); target_offset = e->target_offset - (origsize - *size); if (ret) @@ -1605,7 +1607,7 @@ check_compat_entry_size_and_hooks(struct ipt_entry *e, if (ret) return ret; - off = 0; + off = sizeof(struct ipt_entry) - sizeof(struct compat_ipt_entry); entry_offset = (void *)e - (void *)base; j = 0; ret = IPT_MATCH_ITERATE(e, compat_find_calc_match, name, &e->ip, @@ -1671,6 +1673,8 @@ compat_copy_entry_from_user(struct ipt_entry *e, void **dstptr, memcpy(de, e, sizeof(struct ipt_entry)); *dstptr += sizeof(struct compat_ipt_entry); + *size += sizeof(struct ipt_entry) - sizeof(struct compat_ipt_entry); + ret = IPT_MATCH_ITERATE(e, xt_compat_match_from_user, dstptr, size); if (ret) return ret; |