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drm/nouveau: fix another off-by-one in nvbios_addr

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commit c441d28945 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: 4d4e9907ff ("drm/nouveau/bios: guard against out-of-bounds accesses to image")
Cc: <stable@vger.kernel.org> # v4.8+
Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220511163716.3520591-1-ttabi@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Timur Tabi 2022-05-11 11:37:16 -05:00 committed by Greg Kroah-Hartman
parent 0bc0ea2b3e
commit 3206dbec45
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/nouveau/nvkm/subdev/bios/base.c
View file

@ -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;
}