diff --git a/sys/dev/pci/drm/amd/amdgpu/amdgpu_gem.c b/sys/dev/pci/drm/amd/amdgpu/amdgpu_gem.c
index 206ba636efb..928a224b065 100644
--- a/sys/dev/pci/drm/amd/amdgpu/amdgpu_gem.c
+++ b/sys/dev/pci/drm/amd/amdgpu/amdgpu_gem.c
@@ -1194,6 +1194,11 @@ int amdgpu_gem_op_ioctl(struct drm_device *dev, void *data,
 		 * If that number is larger than the size of the array, the ioctl must
 		 * be retried.
 		 */
+		if (args->num_entries > INT_MAX / sizeof(*vm_entries)) {
+			r = -EINVAL;
+			goto out_exec;
+		}
+
 		vm_entries = kvcalloc(args->num_entries, sizeof(*vm_entries), GFP_KERNEL);
 		if (!vm_entries) {
 			r = -ENOMEM;