From: Andrey Konovalov <andreyk...@google.com> Date: Thu, 16 Feb 2017 17:22:46 +0100
> In the current DCCP implementation an skb for a DCCP_PKT_REQUEST packet > is forcibly freed via __kfree_skb in dccp_rcv_state_process if > dccp_v6_conn_request successfully returns. > > However, if IPV6_RECVPKTINFO is set on a socket, the address of the skb > is saved to ireq->pktopts and the ref count for skb is incremented in > dccp_v6_conn_request, so skb is still in use. Nevertheless, it gets freed > in dccp_rcv_state_process. > > Fix by calling consume_skb instead of doing goto discard and therefore > calling __kfree_skb. > > Similar fixes for TCP: > > fb7e2399ec17f1004c0e0ccfd17439f8759ede01 [TCP]: skb is unexpectedly freed. > 0aea76d35c9651d55bbaf746e7914e5f9ae5a25d tcp: SYN packets are now > simply consumed > > Signed-off-by: Andrey Konovalov <andreyk...@google.com> Applied and queued up for -stable, thanks.
