[Qemu-devel] [PATCH] sockets: avoid crash when cleaning up sockets for an invalid FD

["Daniel P. Berrange" <berrange@redhat.com>]

If socket_listen_cleanup is passed an invalid FD, then querying the socket
local address will fail. We must thus be prepared for the returned addr to
be NULL

Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
---
 util/qemu-sockets.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/util/qemu-sockets.c b/util/qemu-sockets.c
index b47fb45885..c7fdaa63fb 100644
--- a/util/qemu-sockets.c
+++ b/util/qemu-sockets.c
@@ -1073,6 +1073,9 @@ void socket_listen_cleanup(int fd, Error **errp)
     SocketAddress *addr;
 
     addr = socket_local_address(fd, errp);
+    if (!addr) {
+        return;
+    }
 
     if (addr->type == SOCKET_ADDRESS_TYPE_UNIX
         && addr->u.q_unix.path) {
-- 
2.13.6