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H A D | protocol.c | 05e3ecea Wed Dec 02 17:16:57 GMT 2020 Eric Dumazet <edumazet@google.com> mptcp: avoid potential infinite loop in mptcp_recvmsg()
If a packet is ready in receive queue, and application isssues a recvmsg()/recvfrom()/recvmmsg() request asking for zero bytes, we hang in mptcp_recvmsg().
Fixes: ea4ca586b16f ("mptcp: refine MPTCP-level ack scheduling") Signed-off-by: Eric Dumazet <edumazet@google.com> Tested-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Link: https://lore.kernel.org/r/20201202171657.1185108-1-eric.dumazet@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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