This is a note to let you know that I've just added the patch titled
drm/nouveau: fix another off-by-one in nvbios_addr
to the 5.19-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:
drm-nouveau-fix-another-off-by-one-in-nvbios_addr.patch
and it can be found in the queue-5.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit bc0f39623d2a1b3b85f1c5b11f566aaa119ccbb3
Author: Timur Tabi <ttabi@xxxxxxxxxx>
Date: Wed May 11 11:37:16 2022 -0500
drm/nouveau: fix another off-by-one in nvbios_addr
[ Upstream commit c441d28945fb113220d48d6c86ebc0b090a2b677 ]
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: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/base.c
index 64e423dddd9e..6c318e41bde0 100644
--- 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 *addr, u8 size)
{
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;
}
