From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7EC23C2D0C9 for ; Sat, 14 Dec 2019 00:47:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6C1E420724 for ; Sat, 14 Dec 2019 00:47:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="h1vuWBXD" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726781AbfLNArl (ORCPT ); Fri, 13 Dec 2019 19:47:41 -0500 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:1902 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726744AbfLNArl (ORCPT ); Fri, 13 Dec 2019 19:47:41 -0500 Received: from pps.filterd (m0044012.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id xBE0UbBc009289 for ; Fri, 13 Dec 2019 16:47:40 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=facebook; bh=lbAX90rW65np9+9KtVJ+3Pdd5XsV1QF/HUAdph2/+PI=; b=h1vuWBXD+rB91R5ShHCJ5sIaZhv3S4in6PdHJCufFwxrukLoWnMk2lIFBb/PnCV3D0FY ZYEhcLxEAHJ/f22/gZQFPOQLWr5OvpRykEvVUHW4Nk4D+I39Yy/dbsdIr1mpLeTELU+w qw+ZgGDlIHzqRDjBGztOF7/h/N9AC7CcJwM= Received: from mail.thefacebook.com (mailout.thefacebook.com [199.201.64.23]) by mx0a-00082601.pphosted.com with ESMTP id 2wvkm20g0r-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT) for ; Fri, 13 Dec 2019 16:47:40 -0800 Received: from intmgw002.41.prn1.facebook.com (2620:10d:c081:10::13) by mail.thefacebook.com (2620:10d:c081:35::127) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA) id 15.1.1713.5; Fri, 13 Dec 2019 16:47:39 -0800 Received: by devbig005.ftw2.facebook.com (Postfix, from userid 6611) id C0B932943AB4; Fri, 13 Dec 2019 16:47:38 -0800 (PST) Smtp-Origin-Hostprefix: devbig From: Martin KaFai Lau Smtp-Origin-Hostname: devbig005.ftw2.facebook.com To: CC: Alexei Starovoitov , Daniel Borkmann , David Miller , , Smtp-Origin-Cluster: ftw2c04 Subject: [PATCH bpf-next 01/13] bpf: Save PTR_TO_BTF_ID register state when spilling to stack Date: Fri, 13 Dec 2019 16:47:38 -0800 Message-ID: <20191214004738.1652239-1-kafai@fb.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191214004737.1652076-1-kafai@fb.com> References: <20191214004737.1652076-1-kafai@fb.com> X-FB-Internal: Safe MIME-Version: 1.0 Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572 definitions=2019-12-13_09:2019-12-13,2019-12-13 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 impostorscore=0 phishscore=0 lowpriorityscore=0 bulkscore=0 priorityscore=1501 mlxlogscore=618 malwarescore=0 adultscore=0 spamscore=0 mlxscore=0 clxscore=1015 suspectscore=13 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-1912140001 X-FB-Internal: deliver Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This patch makes the verifier save the PTR_TO_BTF_ID register state when spilling to the stack. Signed-off-by: Martin KaFai Lau --- kernel/bpf/verifier.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 034ef81f935b..408264c1d55b 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -1915,6 +1915,7 @@ static bool is_spillable_regtype(enum bpf_reg_type type) case PTR_TO_TCP_SOCK: case PTR_TO_TCP_SOCK_OR_NULL: case PTR_TO_XDP_SOCK: + case PTR_TO_BTF_ID: return true; default: return false; -- 2.17.1