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drm/amdgpu: Validate VM ioctl flags.

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commit a2b308044dcaca8d3e580959a4f867a1d5c37fac upstream.

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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bas Nieuwenhuizen 2023-05-13 14:51:00 +02:00 committed by Greg Kroah-Hartman
parent c484b65f93
commit 0336c8f072
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
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@ -3252,6 +3252,10 @@ int amdgpu_vm_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
long timeout = msecs_to_jiffies(2000);
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 */