netdev - [PATCH net 0/3] mptcp: rx path fixes

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20241230-net-mptcp-rbuf-fixes-v1-0-8608af434ceb@kernel.org>
Date: Mon, 30 Dec 2024 19:12:29 +0100
From: "Matthieu Baerts (NGI0)" <matttbe@...nel.org>
To: mptcp@...ts.linux.dev, Mat Martineau <martineau@...nel.org>, 
 Geliang Tang <geliang@...nel.org>, "David S. Miller" <davem@...emloft.net>, 
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
 Paolo Abeni <pabeni@...hat.com>, Simon Horman <horms@...nel.org>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, 
 "Matthieu Baerts (NGI0)" <matttbe@...nel.org>, stable@...r.kernel.org
Subject: [PATCH net 0/3] mptcp: rx path fixes

Here are 3 different fixes, all related to the MPTCP receive buffer:

- Patch 1: fix receive buffer space when recvmsg() blocks after
  receiving some data. For a fix introduced in v6.12, backported to
  v6.1.

- Patch 2: mptcp_cleanup_rbuf() can be called when no data has been
  copied. For 5.11.

- Patch 3: prevent excessive coalescing on receive, which can affect the
  throughput badly. It looks better to wait a bit before backporting
  this one to stable versions, to get more results. For 5.10.

Signed-off-by: Matthieu Baerts (NGI0) <matttbe@...nel.org>
---
Please note that there is no urgency here as well: this can of course be
sent to Linus next year!

Enjoy this holiday period!

---
Paolo Abeni (3):
      mptcp: fix recvbuffer adjust on sleeping rcvmsg
      mptcp: don't always assume copied data in mptcp_cleanup_rbuf()
      mptcp: prevent excessive coalescing on receive

 net/mptcp/protocol.c | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)
---
base-commit: a024e377efed31ecfb39210bed562932321345b3
change-id: 20241230-net-mptcp-rbuf-fixes-74526e59d951

Best regards,
-- 
Matthieu Baerts (NGI0) <matttbe@...nel.org>