From 5e79aed439d4e1b101c768aabfd695cd1c0a54ce Mon Sep 17 00:00:00 2001 From: Ilya Shipitsin Date: Thu, 18 May 2023 23:21:39 +0200 Subject: [PATCH] src/openvpn/dco_freebsd.c: handle malloc failure malloc was not checked against NULL, I was able to get core dump in case of failure Signed-off-by: Ilya Shipitsin Acked-by: Gert Doering Message-Id: <20230518212139.1261-1-chipitsine@gmail.com> URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg26707.html Signed-off-by: Gert Doering --- src/openvpn/dco_freebsd.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/openvpn/dco_freebsd.c b/src/openvpn/dco_freebsd.c index 1111abebd..af7776bb8 100644 --- a/src/openvpn/dco_freebsd.c +++ b/src/openvpn/dco_freebsd.c @@ -594,6 +594,10 @@ dco_available(int msglevel) } buf = malloc(ifcr.ifcr_total * IFNAMSIZ); + if (!buf) + { + goto out; + } ifcr.ifcr_count = ifcr.ifcr_total; ifcr.ifcr_buffer = buf; -- 2.47.3