[PATCH 4.19 022/287] drm/nouveau: fix another off-by-one in nvbios_addr

[Greg Kroah-Hartman]

From: Timur Tabi <ttabi@xxxxxxxxxx>

commit c441d28945fb113220d48d6c86ebc0b090a2b677 upstream.

This check determines whether a given address is part of
image 0 or image 1.  Image 1 starts at offset image0_size,
so that address should be included.

Fixes: 4d4e9907ff572 ("drm/nouveau/bios: guard against out-of-bounds accesses to image")
Cc: <stable@xxxxxxxxxxxxxxx> # v4.8+
Signed-off-by: Timur Tabi <ttabi@xxxxxxxxxx>
Reviewed-by: Karol Herbst <kherbst@xxxxxxxxxx>
Signed-off-by: Lyude Paul <lyude@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20220511163716.3520591-1-ttabi@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/nouveau/nvkm/subdev/bios/base.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/base.c
@@ -33,7 +33,7 @@ nvbios_addr(struct nvkm_bios *bios, u32
 {
 	u32 p = *addr;
 
-	if (*addr > bios->image0_size && bios->imaged_addr) {
+	if (*addr >= bios->image0_size && bios->imaged_addr) {
 		*addr -= bios->image0_size;
 		*addr += bios->imaged_addr;
 	}