From 65f2e8e1f7a86e62630fd36e34609dc7fc09b474 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= Date: Fri, 11 Oct 2013 19:33:20 -0400 Subject: [PATCH] dbus-common: avoid leak in error path src/shared/dbus-common.c:968:33: warning: Potential leak of memory pointed to by 'l' return -EINVAL; ^~~~~~ --- src/shared/dbus-common.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/src/shared/dbus-common.c b/src/shared/dbus-common.c index c727cae..3ba2d87 100644 --- a/src/shared/dbus-common.c +++ b/src/shared/dbus-common.c @@ -934,7 +934,7 @@ int bus_parse_strv_iter(DBusMessageIter *iter, char ***_l) { int bus_parse_strv_pairs_iter(DBusMessageIter *iter, char ***_l) { DBusMessageIter sub, sub2; unsigned n = 0, i = 0; - char **l; + _cleanup_strv_free_ char **l = NULL; assert(iter); assert(_l); @@ -953,6 +953,7 @@ int bus_parse_strv_pairs_iter(DBusMessageIter *iter, char ***_l) { l = new(char*, n*2+1); if (!l) return -ENOMEM; + l[0] = NULL; /* make sure that l is properly terminated at all times */ dbus_message_iter_recurse(iter, &sub); @@ -968,26 +969,25 @@ int bus_parse_strv_pairs_iter(DBusMessageIter *iter, char ***_l) { return -EINVAL; l[i] = strdup(a); - if (!l[i]) { - strv_free(l); + if (!l[i]) return -ENOMEM; - } + i++; - l[++i] = strdup(b); - if (!l[i]) { - strv_free(l); + l[i] = strdup(b); + if (!l[i]) return -ENOMEM; - } - i++; + dbus_message_iter_next(&sub); } assert(i == n*2); l[i] = NULL; - if (_l) + if (_l) { *_l = l; + l = NULL; /* avoid freeing */ + } return 0; } -- 1.8.4.652.g0d6e0ce