From: Bas Nieuwenhuizen Date: Sat, 13 May 2023 12:51:00 +0000 (+0200) Subject: drm/amdgpu: Validate VM ioctl flags. X-Git-Tag: v6.3.12~2 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=afec7c531d6adde3bd86f9f52950ff2806f4eba2;p=thirdparty%2Fkernel%2Fstable.git drm/amdgpu: Validate VM ioctl flags. commit a2b308044dcaca8d3e580959a4f867a1d5c37fac upstream. None have been defined yet, so reject anybody setting any. Mesa sets it to 0 anyway. Signed-off-by: Bas Nieuwenhuizen Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index b9441ab457ea7..587879f3ac2e6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -2371,6 +2371,10 @@ 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 */