The patch titled
atafb: test virtual screen range before subtraction on unsigned
has been added to the -mm tree. Its filename is
atafb-test-virtual-screen-range-before-subtraction-on-unsigned.patch
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------------------------------------------------------
Subject: atafb: test virtual screen range before subtraction on unsigned
From: Roel Kluin <12o3l@xxxxxxxxxx>
dx and dy are u32's, so the test should occur before the subtraction
Signed-off-by: Roel Kluin <12o3l@xxxxxxxxxx>
Cc: Tim Schmielau <tim@xxxxxxxxxxxxxxxxxxxxxx>
Cc: Krzysztof Helt <krzysztof.h1@xxxxx>
Cc: Antonino Daplas <adaplas@xxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/atafb.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff -puN drivers/video/atafb.c~atafb-test-virtual-screen-range-before-subtraction-on-unsigned drivers/video/atafb.c
--- a/drivers/video/atafb.c~atafb-test-virtual-screen-range-before-subtraction-on-unsigned
+++ a/drivers/video/atafb.c
@@ -2593,13 +2593,16 @@ static void atafb_copyarea(struct fb_inf
width = x2 - dx;
height = y2 - dy;
+ if (area->sx + dx < area->dx || area->sy + dy < area->dy)
+ return;
+
/* update sx,sy */
sx = area->sx + (dx - area->dx);
sy = area->sy + (dy - area->dy);
/* the source must be completely inside the virtual screen */
- if (sx < 0 || sy < 0 || (sx + width) > info->var.xres_virtual ||
- (sy + height) > info->var.yres_virtual)
+ if (sx + width > info->var.xres_virtual ||
+ sy + height > info->var.yres_virtual)
return;
if (dy > sy || (dy == sy && dx > sx)) {
_
Patches currently in -mm which might be from 12o3l@xxxxxxxxxx are
atmel_lcdfb-fix-pixclok-divider-calculation.patch
linux-next.patch
ehca-ret-is-unsigned-ibmebus_request_irq-negative-return-ignored-in-hca_create_eq.patch
block-blk-mergec-inverted-likeliness-in-ll_back_merge_fn.patch
spi_mpc83xx-much-improved-driver.patch
xilinx_spi-test-below-0-on-unsigned-irq-in-xilinx_spi_probe.patch
asic3-platform_get_irq-may-return-signed-unnoticed.patch
aty128fb-test-below-0-on-unsigned-pll-post_divider.patch
amifb-test-virtual-screen-range-before-subtraction-on-unsigned.patch
atafb-test-virtual-screen-range-before-subtraction-on-unsigned.patch
likeliness-accounting-change-and-cleanup.patch
likely_prof-update-to-test_and_set_bit_lock-clear_bit_unlock.patch
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