Date: Wed, 12 Aug 2020 12:06:01 +0000 (UTC) From: "Andrey V. Elsukov" <ae@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r364160 - stable/11/sbin/ipfw Message-ID: <202008121206.07CC61S0029438@repo.freebsd.org>
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Author: ae Date: Wed Aug 12 12:06:01 2020 New Revision: 364160 URL: https://svnweb.freebsd.org/changeset/base/364160 Log: MFC r363904: Fix SIGSEGV in ipfw(8) when NAT64 prefix length is omitted. Modified: stable/11/sbin/ipfw/nat64clat.c stable/11/sbin/ipfw/nat64stl.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sbin/ipfw/nat64clat.c ============================================================================== --- stable/11/sbin/ipfw/nat64clat.c Wed Aug 12 11:49:35 2020 (r364159) +++ stable/11/sbin/ipfw/nat64clat.c Wed Aug 12 12:06:01 2020 (r364160) @@ -303,6 +303,9 @@ nat64clat_config(const char *name, uint8_t set, int ac if ((p = strchr(*av, '/')) != NULL) *p++ = '\0'; + else + errx(EX_USAGE, + "Prefix length required: %s", *av); if (inet_pton(AF_INET6, *av, &prefix) != 1) errx(EX_USAGE, "Bad prefix: %s", *av); Modified: stable/11/sbin/ipfw/nat64stl.c ============================================================================== --- stable/11/sbin/ipfw/nat64stl.c Wed Aug 12 11:49:35 2020 (r364159) +++ stable/11/sbin/ipfw/nat64stl.c Wed Aug 12 12:06:01 2020 (r364160) @@ -249,6 +249,9 @@ nat64stl_create(const char *name, uint8_t set, int ac, NEED1("IPv6 prefix6 required"); if ((p = strchr(*av, '/')) != NULL) *p++ = '\0'; + else + errx(EX_USAGE, + "Prefix length required: %s", *av); if (inet_pton(AF_INET6, *av, &cfg->prefix6) != 1) errx(EX_USAGE, "Bad prefix: %s", *av);
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