summaryrefslogtreecommitdiff
path: root/target/linux/brcm2708/patches-4.4/0498-fbmem-Ensure-that-parameters-are-properly-checked-wi.patch
diff options
context:
space:
mode:
authorÁlvaro Fernández Rojas <noltari@gmail.com>2016-12-02 11:50:26 +0100
committerÁlvaro Fernández Rojas <noltari@gmail.com>2016-12-04 12:32:04 +0100
commit011f2c26f1b62e309f2eac6a3101bfe0a3c76c7e (patch)
treebe53d4f11f7625508ee3aea9889e854ab5b5f263 /target/linux/brcm2708/patches-4.4/0498-fbmem-Ensure-that-parameters-are-properly-checked-wi.patch
parent4257f6548b9480cdb436115b63d5c134c5e91303 (diff)
downloadmtk-20170518-011f2c26f1b62e309f2eac6a3101bfe0a3c76c7e.zip
mtk-20170518-011f2c26f1b62e309f2eac6a3101bfe0a3c76c7e.tar.gz
mtk-20170518-011f2c26f1b62e309f2eac6a3101bfe0a3c76c7e.tar.bz2
brcm2708: update linux 4.4 patches to latest version
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0498-fbmem-Ensure-that-parameters-are-properly-checked-wi.patch')
-rw-r--r--target/linux/brcm2708/patches-4.4/0498-fbmem-Ensure-that-parameters-are-properly-checked-wi.patch27
1 files changed, 27 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0498-fbmem-Ensure-that-parameters-are-properly-checked-wi.patch b/target/linux/brcm2708/patches-4.4/0498-fbmem-Ensure-that-parameters-are-properly-checked-wi.patch
new file mode 100644
index 0000000..4b9ee5d
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0498-fbmem-Ensure-that-parameters-are-properly-checked-wi.patch
@@ -0,0 +1,27 @@
+From b5dd047d429d99a2e9a567d29df581e21e7ba071 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Wed, 7 Sep 2016 16:57:59 +0100
+Subject: [PATCH] fbmem: Ensure that parameters are properly checked within
+ fb_copyarea_user
+
+---
+ drivers/video/fbdev/core/fbmem.c | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+--- a/drivers/video/fbdev/core/fbmem.c
++++ b/drivers/video/fbdev/core/fbmem.c
+@@ -1090,7 +1090,13 @@ static int fb_copyarea_user(struct fb_in
+ int ret = 0;
+ if (!lock_fb_info(info))
+ return -ENODEV;
+- if (copy->dx + copy->width > info->var.xres ||
++ if (copy->dx >= info->var.xres ||
++ copy->sx >= info->var.xres ||
++ copy->width > info->var.xres ||
++ copy->dy >= info->var.yres ||
++ copy->sy >= info->var.yres ||
++ copy->height > info->var.yres ||
++ copy->dx + copy->width > info->var.xres ||
+ copy->sx + copy->width > info->var.xres ||
+ copy->dy + copy->height > info->var.yres ||
+ copy->sy + copy->height > info->var.yres) {