From: Xin Long <lucien....@gmail.com>
Date: Thu, 26 Apr 2018 15:21:44 +0800
> When processing a duplicate cookie-echo chunk, sctp moves the new
> temp asoc's stream out/in into the old asoc, and later frees this
> new temp asoc.
>
> But now after this move, the new temp asoc's stream->outcnt is not
> cleared while stream->out is set to NULL, which would cause a same
> crash as the one fixed in Commit 79d0895140e9 ("sctp: fix error
> path in sctp_stream_init") when freeing this asoc later.
>
> This fix is to clear this outcnt in sctp_stream_update.
>
> Fixes: f952be79cebd ("sctp: introduce struct sctp_stream_out_ext")
> Reported-by: Jianwen Ji <j...@redhat.com>
> Signed-off-by: Xin Long <lucien....@gmail.com>
Applied and queued up for -stable.
