We don't currently zero-initialize the 'struct sockaddr_in' that
parse_host_port() fills in, so any fields we don't explicitly
initialize might be left as random garbage. POSIX states that
implementations may define extensions in sockaddr_in, and that those
extensions must not trigger if zero-initialized. So not zero
initializing might result in inadvertently triggering an impdef
extension.
memset() the sockaddr_in before we start to fill it in.
Fixes: Coverity CID 1005338
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
---
net/net.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/net.c b/net/net.c
index 76bbb7c31b4..52c99196c69 100644
--- a/net/net.c
+++ b/net/net.c
@@ -75,6 +75,8 @@ int parse_host_port(struct sockaddr_in *saddr, const char
*str,
const char *addr, *p, *r;
int port, ret = 0;
+ memset(saddr, 0, sizeof(*saddr));
+
substrings = g_strsplit(str, ":", 2);
if (!substrings || !substrings[0] || !substrings[1]) {
error_setg(errp, "host address '%s' doesn't contain ':' "
--
2.20.1
