video: fbdev: fix OOB read in vga_8planes_imageblit()

[people/arne_f/kernel.git] / drivers / video / fbdev / vga16fb.c

diff --git a/drivers/video/fbdev/vga16fb.c b/drivers/video/fbdev/vga16fb.c
index 5f0690c8fc936b0f2e20180c6ac0556647a0c846..ee6957a799bb6bc5e4f3da8dc07b01d3bf91e076 100644 (file)
--- a/drivers/video/fbdev/vga16fb.c
+++ b/drivers/video/fbdev/vga16fb.c
@@ -1122,7 +1122,7 @@ static void vga_8planes_imageblit(struct fb_info *info, const struct fb_image *i
         char oldop = setop(0);
         char oldsr = setsr(0);
         char oldmask = selectmask();
-        const char *cdat = image->data;
+       const unsigned char *cdat = image->data;
        u32 dx = image->dx;
         char __iomem *where;
         int y;