From d21e9500594c504934fc217a6688e2748bd105dc Mon Sep 17 00:00:00 2001 From: Christian Brauner Date: Sun, 28 Mar 2021 17:58:18 +0200 Subject: [PATCH] confile: safely clean previous value in set_config_net_ipv4_gateway() Link: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32586 Signed-off-by: Christian Brauner --- src/lxc/confile.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/src/lxc/confile.c b/src/lxc/confile.c index 375960212..ba9420c72 100644 --- a/src/lxc/confile.c +++ b/src/lxc/confile.c @@ -787,10 +787,9 @@ static int set_config_net_ipv4_gateway(const char *key, const char *value, if (!netdev) return ret_errno(EINVAL); + clr_config_net_ipv4_gateway(key, lxc_conf, data); if (lxc_config_value_empty(value)) - return clr_config_net_ipv4_gateway(key, lxc_conf, data); - - free(netdev->ipv4_gateway); + return 0; if (strequal(value, "auto")) { netdev->ipv4_gateway = NULL; -- 2.47.3