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netconfig: fix freeing invalid pointer

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If l_rtnl_ifaddr4_extract does not set the values they would
get freed. Instead initialize to NULL so the cleanup free is
a no op.
This commit is contained in:
James Prestwood 2020-11-23 15:05:54 -08:00 committed by Denis Kenzior
parent ebc42ccecf
commit ccf265b943
1 changed files with 3 additions and 3 deletions
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6
src/netconfig.c
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@ -441,9 +441,9 @@ static void netconfig_ifaddr_added(struct netconfig *netconfig,
const struct ifaddrmsg *ifa, const struct ifaddrmsg *ifa,
uint32_t len) uint32_t len)
{ {
L_AUTO_FREE_VAR(char *, label); L_AUTO_FREE_VAR(char *, label) = NULL;
L_AUTO_FREE_VAR(char *, ip); L_AUTO_FREE_VAR(char *, ip) = NULL;
L_AUTO_FREE_VAR(char *, broadcast); L_AUTO_FREE_VAR(char *, broadcast) = NULL;
l_rtnl_ifaddr4_extract(ifa, len, &label, &ip, &broadcast); l_rtnl_ifaddr4_extract(ifa, len, &label, &ip, &broadcast);
l_debug("%s: ifaddr %s/%u broadcast %s", label, l_debug("%s: ifaddr %s/%u broadcast %s", label,