This is a note to let you know that I've just added the patch titled
pwm: Fix out-of-bounds access in of_pwm_single_xlate()
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pwm-fix-out-of-bounds-access-in-of_pwm_single_xlate.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a297d07b9a1e4fb8cda25a4a2363a507d294b7c9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@xxxxxxxxxxxxxx>
Date: Tue, 9 Jan 2024 22:34:31 +0100
Subject: pwm: Fix out-of-bounds access in of_pwm_single_xlate()
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From: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
commit a297d07b9a1e4fb8cda25a4a2363a507d294b7c9 upstream.
With args->args_count == 2 args->args[2] is not defined. Actually the
flags are contained in args->args[1].
Fixes: 3ab7b6ac5d82 ("pwm: Introduce single-PWM of_xlate function")
Cc: stable@xxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/243908750d306e018a3d4bf2eb745d53ab50f663.1704835845.git.u.kleine-koenig@xxxxxxxxxxxxxx
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pwm/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -176,7 +176,7 @@ of_pwm_single_xlate(struct pwm_chip *chi
pwm->args.period = args->args[0];
pwm->args.polarity = PWM_POLARITY_NORMAL;
- if (args->args_count == 2 && args->args[2] & PWM_POLARITY_INVERTED)
+ if (args->args_count == 2 && args->args[1] & PWM_POLARITY_INVERTED)
pwm->args.polarity = PWM_POLARITY_INVERSED;
return pwm;
Patches currently in stable-queue which might be from u.kleine-koenig@xxxxxxxxxxxxxx are
queue-6.6/pwm-jz4740-don-t-use-dev_err_probe-in-.request.patch
queue-6.6/serial-core-imx-do-not-set-rs485-enabled-if-it-is-not-supported.patch
queue-6.6/pwm-stm32-use-hweight32-in-stm32_pwm_detect_channels.patch
queue-6.6/drm-bridge-tpd12s015-drop-buggy-__exit-annotation-fo.patch
queue-6.6/drm-imx-lcdc-fix-double-free-of-driver-data.patch
queue-6.6/pwm-fix-out-of-bounds-access-in-of_pwm_single_xlate.patch
queue-6.6/pwm-stm32-fix-enable-count-for-clk-in-.probe.patch
