linux-kernel - [PATCH 0/1] tty: serial: samsung: add spin_lock in console

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]

Date:   Tue,  5 Apr 2022 12:38:53 +0900
From:   Jaewon Kim <jaewon02.kim@...sung.com>
To:     Krzysztof Kozlowski <krzk@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Jiri Slaby <jirislaby@...nel.org>,
        linux-samsung-soc@...r.kernel.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-serial@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Chanho Park <chanho61.park@...sung.com>,
        Jaewon Kim <jaewon02.kim@...sung.com>
Subject: [PATCH 0/1] tty: serial: samsung: add spin_lock in console_write

When console and printk log are printed at the same time,
they are called through tty driver and console driver concurrently.
In this case, this could lead to potintial issue that
data loss or fifo full.

This issue also occurred with other drivers and has been fixed.
"serial: amba-pl011: lock console writes against interrupts"


Jaewon Kim (1):
  tty: serial: samsung: add spin_lock for interrupt and console_write

 drivers/tty/serial/samsung_tty.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

-- 
2.35.1