From: Jesse Zhang jesse.zhang@amd.com
stable inclusion from stable-v6.6.50 commit 0aad97bf6d0bc7a34a19f266b0b9fb2861efe64c category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IARVHE CVE: CVE-2024-46720
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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[ Upstream commit b1f7810b05d1950350ac2e06992982974343e441 ]
check the pointer hive before use.
Signed-off-by: Jesse Zhang Jesse.Zhang@amd.com Reviewed-by: Tim Huang Tim.Huang@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Liu Chuang liuchuang40@huawei.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index d8c95f5adeb6..a3d755e1470b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -5235,7 +5235,7 @@ int amdgpu_device_gpu_recover(struct amdgpu_device *adev, * to put adev in the 1st position. */ INIT_LIST_HEAD(&device_list); - if (!amdgpu_sriov_vf(adev) && (adev->gmc.xgmi.num_physical_nodes > 1)) { + if (!amdgpu_sriov_vf(adev) && (adev->gmc.xgmi.num_physical_nodes > 1) && hive) { list_for_each_entry(tmp_adev, &hive->device_list, gmc.xgmi.head) { list_add_tail(&tmp_adev->reset_list, &device_list); if (gpu_reset_for_dev_remove && adev->shutdown)