From: Ernst Sjöstrand ernstp@gmail.com
commit 67a44e659888569a133a8f858c8230e9d7aad1d5 upstream.
Seems like newer cards can have even more instances now. Found by UBSAN: array-index-out-of-bounds in drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c:318:29 index 8 is out of range for type 'uint32_t *[8]'
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1697 Cc: stable@vger.kernel.org Signed-off-by: Ernst Sjöstrand ernstp@gmail.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -717,7 +717,7 @@ enum amd_hw_ip_block_type { MAX_HWIP };
-#define HWIP_MAX_INSTANCE 8 +#define HWIP_MAX_INSTANCE 10
struct amd_powerplay { void *pp_handle;