linux-kernel - [PATCH v2 0/7] serial: qcom-geni: fix receiver enable

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: <20241001125033.10625-1-johan+linaro@kernel.org>
Date: Tue,  1 Oct 2024 14:50:26 +0200
From: Johan Hovold <johan+linaro@...nel.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Jiri Slaby <jirislaby@...nel.org>,
	Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konradybcio@...nel.org>,
	Douglas Anderson <dianders@...omium.org>,
	linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-serial@...r.kernel.org,
	Johan Hovold <johan+linaro@...nel.org>
Subject: [PATCH v2 0/7] serial: qcom-geni: fix receiver enable

This series is a follow up to the console fixes in 6.12-rc1 that can
interact badly with some pre-existing bugs.

Specifically, the receiver could end up being disabled when
set_termios() races with the console code during boot.

Fixing the missing locking in set_termios() exposes another
long-standing bug in the DMA implementation (e.g. used for Bluetooth),
which is also fixed in v2.

Johan


Changes in v2
 - keep the call to stop rx in shutdown() which is called also on
   hangups
 - fix rx dma cancellation
 - fix rx cancel dma status bit
 - drop flip buffer WARN()
 - drop unused receive parameter

Johan Hovold (7):
  serial: qcom-geni: fix premature receiver enable
  serial: qcom-geni: fix shutdown race
  serial: qcom-geni: fix dma rx cancellation
  serial: qcom-geni: fix receiver enable
  serial: qcom-geni: fix rx cancel dma status bit
  serial: qcom-geni: drop flip buffer WARN()
  serial: qcom-geni: drop unused receive parameter

 drivers/tty/serial/qcom_geni_serial.c | 40 +++++++++++++++++----------
 include/linux/soc/qcom/geni-se.h      |  2 +-
 2 files changed, 27 insertions(+), 15 deletions(-)

-- 
2.45.2