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Diffstat (limited to 'net/bridge')
-rw-r--r--net/bridge/netfilter/ebtables.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index aa23479b2..ed62c1026 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -1111,6 +1111,8 @@ static int do_replace(struct net *net, sockptr_t arg, unsigned int len)
struct ebt_table_info *newinfo;
struct ebt_replace tmp;
+ if (len < sizeof(tmp))
+ return -EINVAL;
if (copy_from_sockptr(&tmp, arg, sizeof(tmp)) != 0)
return -EFAULT;
@@ -1423,6 +1425,8 @@ static int update_counters(struct net *net, sockptr_t arg, unsigned int len)
{
struct ebt_replace hlp;
+ if (len < sizeof(hlp))
+ return -EINVAL;
if (copy_from_sockptr(&hlp, arg, sizeof(hlp)))
return -EFAULT;
@@ -2352,6 +2356,8 @@ static int compat_update_counters(struct net *net, sockptr_t arg,
{
struct compat_ebt_replace hlp;
+ if (len < sizeof(hlp))
+ return -EINVAL;
if (copy_from_sockptr(&hlp, arg, sizeof(hlp)))
return -EFAULT;