Files
linux/drivers
Geert Uytterhoeven 491e61fe3c serial: samsung: Fix out-of-bounds access through serial port index
[ Upstream commit 49ee23b718 ]

The s3c24xx_serial_ports[] array is indexed using a value derived from
the "serialN" alias in DT, or from an incrementing probe index, which
may lead to an out-of-bounds access.

Fix this by adding a range check.

Note that the array size is defined by a Kconfig symbol
(CONFIG_SERIAL_SAMSUNG_UARTS), so this can even be triggered using
a legitimate DTB or legitimate board code.

Fixes: 13a9f6c64f ("serial: samsung: Consider DT alias when probing ports")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-25 16:17:59 +02:00
..
2018-05-16 10:10:29 +02:00
2017-12-29 17:53:46 +01:00
2018-01-17 09:45:27 +01:00
2018-04-19 08:56:16 +02:00