diff options
| author | Christian König <christian.koenig@amd.com> | 2016-06-29 13:26:41 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-07-07 15:06:09 -0400 |
| commit | b5f5acbc87052e1bd8ada6915e1dedd856da767d (patch) | |
| tree | 0892fd1a08ab03f5ff5fc074685c8294ba34166f /drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | |
| parent | 566281595037a6f5932adbf8e04d3a63e7687fd7 (diff) | |
| download | linux-b5f5acbc87052e1bd8ada6915e1dedd856da767d.tar.bz2 | |
drm/amdgpu: fix user fence handling once more
Same problem as with the VM page tables. The user fence address must be
determined before the job is scheduled, not when the IB is executed.
This fixes a security problem where user fences could be used to overwrite
any part of VRAM.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_job.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c index b50a8450fcae..87b75d726ae8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c @@ -91,7 +91,6 @@ static void amdgpu_job_free_resources(struct amdgpu_job *job) amdgpu_ib_free(job->adev, &job->ibs[i], f); fence_put(job->fence); - amdgpu_bo_unref(&job->uf_bo); amdgpu_sync_free(&job->sync); } |