From owner-dev-commits-src-branches@freebsd.org Fri Jan 29 00:38:45 2021 Return-Path: Delivered-To: dev-commits-src-branches@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id C484F4F2B48; Fri, 29 Jan 2021 00:38:45 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4DRdkF5Ccfz3D3K; Fri, 29 Jan 2021 00:38:45 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id A59B219631; Fri, 29 Jan 2021 00:38:45 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 10T0cjAd006134; Fri, 29 Jan 2021 00:38:45 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 10T0cjqV006133; Fri, 29 Jan 2021 00:38:45 GMT (envelope-from git) Date: Fri, 29 Jan 2021 00:38:45 GMT Message-Id: <202101290038.10T0cjqV006133@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Ryan Moeller Subject: git: 5d58f58b0d61 - stable/13 - sbin/sysctl: Fix CTLFLAG_SKIP for adjacent nodes MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: freqlabs X-Git-Repository: src X-Git-Refname: refs/heads/stable/13 X-Git-Reftype: branch X-Git-Commit: 5d58f58b0d612913fd280a6acaf174019bd465ba Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-branches@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commits to the stable branches of the FreeBSD src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 29 Jan 2021 00:38:45 -0000 The branch stable/13 has been updated by freqlabs: URL: https://cgit.FreeBSD.org/src/commit/?id=5d58f58b0d612913fd280a6acaf174019bd465ba commit 5d58f58b0d612913fd280a6acaf174019bd465ba Author: Ryan Moeller AuthorDate: 2021-01-27 19:27:46 +0000 Commit: Ryan Moeller CommitDate: 2021-01-29 00:36:46 +0000 sbin/sysctl: Fix CTLFLAG_SKIP for adjacent nodes The OID is saved when we encounter CTLFLAG_SKIP so that descendants can be skipped as well. We then must not update the skip OID until we are out of the node. This was achieved by resetting the skip OID once the prefix no longer matches, but the case where the OID we reset on has CTLFLAG_SKIP was not accounted for. Reported by: mav Reviewed by: mav Sponsored by: iXsystems, Inc. Differential Revision: https://reviews.freebsd.org/D28364 (cherry picked from commit 65efb73fbddd44116fd39b03991386a67422ba6d) --- sbin/sysctl/sysctl.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sbin/sysctl/sysctl.c b/sbin/sysctl/sysctl.c index bd1e357065dc..30d6d94723fa 100644 --- a/sbin/sysctl/sysctl.c +++ b/sbin/sysctl/sysctl.c @@ -1030,7 +1030,8 @@ show_var(int *oid, int nlen, bool honor_skip) } /* keep track of encountered skip nodes, ignoring descendants */ - if (skip_len == 0 && (kind & CTLFLAG_SKIP) != 0) { + if ((skip_len == 0 || skip_len >= nlen * (int)sizeof(int)) && + (kind & CTLFLAG_SKIP) != 0) { /* Save this oid so we can skip descendants. */ skip_len = nlen * sizeof(int); memcpy(skip_oid, oid, skip_len);