Re: net/sctp: stack-out-of-bounds in sctp_getsockopt

[Eric Dumazet]

On Thu, 2016-03-24 at 00:42 +0800, Baozeng wrote:

> Thanks for your quick patch. I tested it but it still reproduce the
> bug. We should limit the length of the name,
> not the prefix. The following patch fixs it.
> 
> diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
> index 67b2e27..4837425 100644
> --- a/net/bridge/netfilter/ebtables.c
> +++ b/net/bridge/netfilter/ebtables.c
> @@ -346,7 +346,7 @@ find_inlist_lock(struct list_head *head, const
> char *name, const char *prefix,
>  {
>         return try_then_request_module(
>                         find_inlist_lock_noload(head, name, error, mutex),
> -                       "%s%s", prefix, name);
> +                       "%s%.*s", prefix, EBT_TABLE_MAXNAMELEN, name);
> }
> 

Right you are, please send a formal patch ?

Thanks !