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drm/amdgpu: Validate VM ioctl flags.
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None have been defined yet, so reject anybody setting any. Mesa sets
it to 0 anyway.

Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Bas Nieuwenhuizen authored and Alex Deucher committed Jun 9, 2023
1 parent e5edd9a commit a2b3080
Showing 1 changed file with 4 additions and 0 deletions.
4 changes: 4 additions & 0 deletions drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
Original file line number Diff line number Diff line change
Expand Up @@ -2370,6 +2370,10 @@ int amdgpu_vm_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
struct amdgpu_fpriv *fpriv = filp->driver_priv;
int r;

/* No valid flags defined yet */
if (args->in.flags)
return -EINVAL;

switch (args->in.op) {
case AMDGPU_VM_OP_RESERVE_VMID:
/* We only have requirement to reserve vmid from gfxhub */
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