This is a note to let you know that I've just added the patch titled
qxl: check for kmap failures
to the 4.4-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:
qxl-check-for-kmap-failures.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f4cceb2affcd1285d4ce498089e8a79f4cd2fa66 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Date: Mon, 11 Jul 2016 11:46:33 +0300
Subject: qxl: check for kmap failures
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
commit f4cceb2affcd1285d4ce498089e8a79f4cd2fa66 upstream.
If kmap fails, it leads to memory corruption.
Fixes: f64122c1f6ad ('drm: add new QXL driver. (v1.4)')
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Link: http://patchwork.freedesktop.org/patch/msgid/20160711084633.GA31411@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/qxl/qxl_draw.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/gpu/drm/qxl/qxl_draw.c
+++ b/drivers/gpu/drm/qxl/qxl_draw.c
@@ -136,6 +136,8 @@ static int qxl_palette_create_1bit(struc
* correctly globaly, since that would require
* tracking all of our palettes. */
ret = qxl_bo_kmap(palette_bo, (void **)&pal);
+ if (ret)
+ return ret;
pal->num_ents = 2;
pal->unique = unique++;
if (visual == FB_VISUAL_TRUECOLOR || visual == FB_VISUAL_DIRECTCOLOR) {
Patches currently in stable-queue which might be from dan.carpenter@xxxxxxxxxx are
queue-4.4/mtd-pmcmsp-flash-allocating-too-much-in-init_msp_flash.patch
queue-4.4/hostfs-freeing-an-err_ptr-in-hostfs_fill_sb_common.patch
queue-4.4/mtd-maps-sa1100-flash-potential-null-dereference.patch
queue-4.4/qxl-check-for-kmap-failures.patch
queue-4.4/power-supply-max17042_battery-fix-model-download-bug.patch
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