Subject: Re: [PATCH] SCTP: Fix kernel panic while received AUTH chunk while enabled auth

From: Vlad Yasevich <[email-masked]>
Date: Fri, 25 Jan 2008 11:41:17 -0500

Sorry for the delay.  Was on vacation without net access.

Wei Yongjun wrote:
> 
> 
> This patch fix this probleam to treat AUTH chunk as unknow chunk if peer 
> has initialized with no auth capable.
> 
> Signed-off-by: Wei Yongjun <[email-masked]>

Acked-by: Vlad Yasevich <[email-masked]>

> 
> --- a/net/sctp/sm_statefuns.c    2008-01-21 00:03:25.000000000 -0500
> +++ b/net/sctp/sm_statefuns.c    2008-01-21 05:14:08.000000000 -0500
> @@ -3785,6 +3785,10 @@ sctp_disposition_t sctp_sf_eat_auth(cons
>     struct sctp_chunk *err_chunk;
>     sctp_ierror_t error;
> 
> +    /* Make sure that the peer has AUTH capable */
> +    if (!asoc->peer.auth_capable)
> +        return sctp_sf_unk_chunk(ep, asoc, type, arg, commands);
> +
>     if (!sctp_vtag_verify(chunk, asoc)) {
>         sctp_add_cmd_sf(commands, SCTP_CMD_REPORT_BAD_TAG,
>                 SCTP_NULL());
> 
> 
>