netdev - [PATCH net 0/3] wireguard fixes for 6.4.2/6.5-rc1

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Date: Mon,  3 Jul 2023 03:27:03 +0200
From: "Jason A. Donenfeld" <Jason@...c4.com>
To: netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: "Jason A. Donenfeld" <Jason@...c4.com>
Subject: [PATCH net 0/3] wireguard fixes for 6.4.2/6.5-rc1

Hi Jakub,

Sorry to send these patches during the merge window, but they're net
fixes, not netdev enhancements, and while I'd ordinarily wait anyway,
I just got a first bug report for one of these fixes, which I originally
had thought was mostly unlikely. So please apply the following three
patches to net:

1) Make proper use of nr_cpu_ids with cpumask_next(), rather than
   awkwardly using modulo, to handle dynamic CPU topology changes.
   Linus noticed this a while ago and pointed it out, and today a user
   actually got hit by it.

2) Respect persistent keepalive and other staged packets when setting
   the private key after the interface is already up.

3) Use timer_delete_sync() instead of del_timer_sync(), per the
   documentation.

Thanks,
Jason

Jason A. Donenfeld (3):
  wireguard: queueing: use saner cpu selection wrapping
  wireguard: netlink: send staged packets when setting initial private
    key
  wireguard: timers: move to using timer_delete_sync

 drivers/net/wireguard/netlink.c            | 14 ++++++----
 drivers/net/wireguard/queueing.c           |  1 +
 drivers/net/wireguard/queueing.h           | 25 ++++++++----------
 drivers/net/wireguard/receive.c            |  2 +-
 drivers/net/wireguard/send.c               |  2 +-
 drivers/net/wireguard/timers.c             | 10 ++++----
 tools/testing/selftests/wireguard/netns.sh | 30 +++++++++++++++++++---
 7 files changed, 54 insertions(+), 30 deletions(-)

-- 
2.41.0