[NET]: Validate socket filters against BPF_MAXINSNS in one spot.

Currently the checks are scattered all over and this leads
to inconsistencies and even cases where the check is not made.

Based upon a patch from Kris Katterjohn.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 3 deletions

diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c
index 50430f79f8cf..1c6d328165bb 100644
--- a/drivers/net/ppp_generic.c
+++ b/drivers/net/ppp_generic.c
@@ -524,9 +524,6 @@ static int get_filter(void __user *arg, struct sock_filter **p)
         if (copy_from_user(&uprog, arg, sizeof(uprog)))
                 return -EFAULT;
 
-        if (uprog.len > BPF_MAXINSNS)
-                return -EINVAL;
-
         if (!uprog.len) {
                 *p = NULL;
                 return 0;