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/openbmc/linux/net/sctp/ |
H A D | stream.c | cfe4bd7a Sun Feb 03 13:27:58 CST 2019 Xin Long <lucien.xin@gmail.com> sctp: check and update stream->out_curr when allocating stream_out
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@redhat.com> Reported-by: syzbot+e33a3a138267ca119c7d@syzkaller.appspotmail.com Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net> cfe4bd7a Sun Feb 03 13:27:58 CST 2019 Xin Long <lucien.xin@gmail.com> sctp: check and update stream->out_curr when allocating stream_out 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@redhat.com> Reported-by: syzbot+e33a3a138267ca119c7d@syzkaller.appspotmail.com Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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