Re: [PATCH v3 10/15] iommufd: IOCTLs for the io_pagetable

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On Tue, Oct 25, 2022 at 03:12:19PM -0300, Jason Gunthorpe wrote:
> +int iommufd_ioas_alloc_ioctl(struct iommufd_ucmd *ucmd)
> +{
> +	struct iommu_ioas_alloc *cmd = ucmd->cmd;
> +	struct iommufd_ioas *ioas;
> +	int rc;
> +
> +	if (cmd->flags)
> +		return -EOPNOTSUPP;
> +
> +	ioas = iommufd_ioas_alloc(ucmd->ictx);
> +	if (IS_ERR(ioas))
> +		return PTR_ERR(ioas);
> +
> +	cmd->out_ioas_id = ioas->obj.id;
> +	rc = iommufd_ucmd_respond(ucmd, sizeof(*cmd));
> +	if (rc)
> +		goto out_table;
> +	iommufd_object_finalize(ucmd->ictx, &ioas->obj);
> +	return 0;
> +
> +out_table:
> +	iommufd_ioas_destroy(&ioas->obj);
> +	return rc;

syzkaller says this should be:

out_table:
	iommufd_object_abort_and_destroy(ucmd->ictx, &ioas->obj);

Jason



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