Author: ae Date: Wed Aug 5 11:26:49 2020 New Revision: 363904 URL: https://svnweb.freebsd.org/changeset/base/363904
Log: Fix SIGSEGV in ipfw(8) when NAT64 prefix length is omitted. Submitted by: Evgeniy Khramtsov <evgeniy at khramtsov org> MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D25734 Modified: head/sbin/ipfw/nat64clat.c head/sbin/ipfw/nat64stl.c Modified: head/sbin/ipfw/nat64clat.c ============================================================================== --- head/sbin/ipfw/nat64clat.c Wed Aug 5 11:26:14 2020 (r363903) +++ head/sbin/ipfw/nat64clat.c Wed Aug 5 11:26:49 2020 (r363904) @@ -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: head/sbin/ipfw/nat64stl.c ============================================================================== --- head/sbin/ipfw/nat64stl.c Wed Aug 5 11:26:14 2020 (r363903) +++ head/sbin/ipfw/nat64stl.c Wed Aug 5 11:26:49 2020 (r363904) @@ -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); _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
