This is a note to let you know that I've just added the patch titled
drm/mediatek/dp: fix memory leak on ->get_edid callback error path
to the 6.1-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:
drm-mediatek-dp-fix-memory-leak-on-get_edid-callback-error-path.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From fcaf9761fd5884a64eaac48536f8c27ecfd2e6bc Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@xxxxxxxxx>
Date: Thu, 14 Sep 2023 16:10:58 +0300
Subject: drm/mediatek/dp: fix memory leak on ->get_edid callback error path
From: Jani Nikula <jani.nikula@xxxxxxxxx>
commit fcaf9761fd5884a64eaac48536f8c27ecfd2e6bc upstream.
Setting new_edid to NULL leaks the buffer.
Fixes: f70ac097a2cf ("drm/mediatek: Add MT8195 Embedded DisplayPort driver")
Cc: Markus Schneider-Pargmann <msp@xxxxxxxxxxxx>
Cc: Guillaume Ranquet <granquet@xxxxxxxxxxxx>
Cc: Bo-Chen Chen <rex-bc.chen@xxxxxxxxxxxx>
Cc: CK Hu <ck.hu@xxxxxxxxxxxx>
Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Cc: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx>
Cc: Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx>
Cc: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
Cc: Matthias Brugger <matthias.bgg@xxxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: linux-mediatek@xxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: <stable@xxxxxxxxxxxxxxx> # v6.1+
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Reviewed-by: Guillaume Ranquet <granquet@xxxxxxxxxxxx>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20230914131058.2472260-1-jani.nikula@xxxxxxxxx/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/mediatek/mtk_dp.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/mediatek/mtk_dp.c
+++ b/drivers/gpu/drm/mediatek/mtk_dp.c
@@ -2005,6 +2005,7 @@ static struct edid *mtk_dp_get_edid(stru
*/
if (mtk_dp_parse_capabilities(mtk_dp)) {
drm_err(mtk_dp->drm_dev, "Can't parse capabilities\n");
+ kfree(new_edid);
new_edid = NULL;
}
Patches currently in stable-queue which might be from jani.nikula@xxxxxxxxx are
queue-6.1/drm-msm-dp-skip-validity-check-for-dp-cts-edid-check.patch
queue-6.1/i915-perf-fix-null-deref-bugs-with-drm_dbg-calls.patch
queue-6.1/drm-mediatek-dp-fix-memory-leak-on-get_edid-callback-error-path.patch
queue-6.1/drm-mediatek-dp-fix-memory-leak-on-get_edid-callback-audio-detection.patch
