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Date: Sun, 03 Feb 2019 14:31:39 -0800 (PST) From: David Miller <davem@...emloft.net> To: lucien.xin@...il.com Cc: linux-kernel@...r.kernel.org, netdev@...r.kernel.org, linux-sctp@...r.kernel.org, marcelo.leitner@...il.com, nhorman@...driver.com Subject: Re: [PATCHv3 net] sctp: check and update stream->out_curr when allocating stream_out From: Xin Long <lucien.xin@...il.com> Date: Mon, 4 Feb 2019 03:27:58 +0800 > Now when using stream reconfig to add out streams, stream->out > will get re-allocated, and all old streams' information will > be copied to the new ones and the old ones will be freed. > > So without stream->out_curr updated, next time when trying to > send from stream->out_curr stream, a panic would be caused. > > This patch is to check and update stream->out_curr when > allocating stream_out. > > v1->v2: > - define fa_index() to get elem index from stream->out_curr. > v2->v3: > - repost with no change. > > Fixes: 5bbbbe32a431 ("sctp: introduce stream scheduler foundations") > Reported-by: Ying Xu <yinxu@...hat.com> > Reported-by: syzbot+e33a3a138267ca119c7d@...kaller.appspotmail.com > Signed-off-by: Xin Long <lucien.xin@...il.com> Applied and queued up for -stable. Thanks!
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