Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.4 198/260] drm/amd/amdgpu: Increase HWIP_MAX_INSTANCE to 10 | Date | Mon, 20 Sep 2021 18:43:36 +0200 |
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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 @@ -762,7 +762,7 @@ enum amd_hw_ip_block_type { MAX_HWIP }; -#define HWIP_MAX_INSTANCE 8 +#define HWIP_MAX_INSTANCE 10 struct amd_powerplay { void *pp_handle;
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