Nouveau - Feb 2024 - [PATCH 3/3] drivers/gpu/drm/nouveau/nvkm/subdev/mxm/base.c: BUFFER_OVERFLOW

The mxms_structlen function returns u16 (2 bytes).
Therefore it reads 2 bytes beyond the mxms array.

Signed-off-by: Andrey Shumilin <shum.sdl at nppct.ru>
Found by Linux Verification Center (linuxtesting.org) with SVACE.
---
 drivers/gpu/drm/nouveau/nvkm/subdev/mxm/base.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/base.c
b/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/base.c
index c1acfe642da3..efd0c874742e 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/base.c
@@ -47,7 +47,7 @@ mxm_shadow_rom(struct nvkm_mxm *mxm, u8 version)
 	struct nvkm_bios *bios = device->bios;
 	struct nvkm_i2c *i2c = device->i2c;
 	struct nvkm_i2c_bus *bus = NULL;
-	u8 i2cidx, mxms[6], addr, size;
+	u8 i2cidx, mxms[8], addr, size;
 
 	i2cidx = mxm_ddc_map(bios, 1 /* LVDS_DDC */) & 0x0f;
 	if (i2cidx < 0x0f)
-- 
2.30.2