Re: [MPTCP] [PATCH net 1/2] mptcp: more strict state checking for acks
From: Mat Martineau <hidden>
Date: 2021-01-12 21:39:59
Also in:
mptcp
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 <redacted>
Fixes: ea4ca586b16f ("mptcp: refine MPTCP-level ack scheduling")
Fixes: fd8976790a6c ("mptcp: be careful on MPTCP-level ack.")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
net/mptcp/protocol.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)Reviewed-by: Mat Martineau <redacted> -- Mat Martineau Intel