From owner-dev-commits-src-all@freebsd.org Tue Mar 30 22:22:02 2021 Return-Path: Delivered-To: dev-commits-src-all@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 4FEEE5AFAAC; Tue, 30 Mar 2021 22:22:02 +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 4F93pL1kLDz3hPx; Tue, 30 Mar 2021 22:22:02 +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 2CA9467AA; Tue, 30 Mar 2021 22:22:02 +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 12UMM2m9002452; Tue, 30 Mar 2021 22:22:02 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 12UMM28e002451; Tue, 30 Mar 2021 22:22:02 GMT (envelope-from git) Date: Tue, 30 Mar 2021 22:22:02 GMT Message-Id: <202103302222.12UMM28e002451@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Xin LI Subject: git: 18f3c5fe9207 - main - usr.sbin/services_mkdb: plug memory leak when line was blank. MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: delphij X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 18f3c5fe9207fbd19360b8ddb23ba10a5ad3df68 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for all branches of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 30 Mar 2021 22:22:02 -0000 The branch main has been updated by delphij: URL: https://cgit.FreeBSD.org/src/commit/?id=18f3c5fe9207fbd19360b8ddb23ba10a5ad3df68 commit 18f3c5fe9207fbd19360b8ddb23ba10a5ad3df68 Author: Xin LI AuthorDate: 2021-03-30 22:21:37 +0000 Commit: Xin LI CommitDate: 2021-03-30 22:21:37 +0000 usr.sbin/services_mkdb: plug memory leak when line was blank. Reviewed by: bapt MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D29370 --- usr.sbin/services_mkdb/uniq.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/usr.sbin/services_mkdb/uniq.c b/usr.sbin/services_mkdb/uniq.c index 330a09fc10e1..c78b01ef27c5 100644 --- a/usr.sbin/services_mkdb/uniq.c +++ b/usr.sbin/services_mkdb/uniq.c @@ -120,12 +120,13 @@ comp(const char *origline, char **compline, size_t *len) for (p = (const unsigned char *)origline; l && *p && isspace(*p); p++, l--) continue; + if (*p == '\0' || l == 0) + return 0; + if ((cline = malloc(l + 1)) == NULL) err(1, "Cannot allocate %zu bytes", l + 1); (void)memcpy(cline, p, l); cline[l] = '\0'; - if (*cline == '\0') - return 0; complen = 0; hasalnum = 0; @@ -155,6 +156,11 @@ comp(const char *origline, char **compline, size_t *len) --complen; } *q = '\0'; + if (!hasalnum) { + free(cline); + cline = NULL; + complen = 0; + } *compline = cline; *len = complen; return hasalnum;