From b9a24c4f2f60aeb754a0dc5755f59b8acdb0af3a Mon Sep 17 00:00:00 2001 From: Oliver Matthews Date: Sun, 25 Sep 2016 09:37:43 +0100 Subject: [PATCH] Fix null derefence if attach is called without access to any tty Signed-off-by: Oliver Matthews --- src/lxc/tools/lxc_attach.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/lxc/tools/lxc_attach.c b/src/lxc/tools/lxc_attach.c index 9d7138835..23d63a22b 100644 --- a/src/lxc/tools/lxc_attach.c +++ b/src/lxc/tools/lxc_attach.c @@ -321,7 +321,7 @@ static int get_pty_on_host(struct lxc_container *c, struct wrapargs *wrap, int * err3: lxc_mainloop_close(&descr); err2: - if (ts->sigfd != -1) + if (ts && ts->sigfd != -1) lxc_console_sigwinch_fini(ts); err1: lxc_console_delete(&conf->console);