On Tue, 12 Jan 2021, Paolo Abeni wrote:
Syzkaller found a way to trigger division by zero in mptcp_subflow_cleanup_rbuf().The current checks implemented into tcp_can_send_ack() are too week, let's be more accurate. Reported-by: Christoph Paasch <cpaa...@apple.com> Fixes: ea4ca586b16f ("mptcp: refine MPTCP-level ack scheduling") Fixes: fd8976790a6c ("mptcp: be careful on MPTCP-level ack.") Signed-off-by: Paolo Abeni <pab...@redhat.com> --- net/mptcp/protocol.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by: Mat Martineau <mathew.j.martin...@linux.intel.com> -- Mat Martineau Intel
