From 3e9828454dcdaa6cd19ee7ea3e3db30567f22c9f Mon Sep 17 00:00:00 2001 From: ven <2988994+hexiaowen@users.noreply.github.com> Date: Wed, 22 May 2019 14:24:28 +0800 Subject: =?UTF-8?q?bus=5Fopen=20leak=20sd=5Fevent=5Fsource=20when=20udevad?= =?UTF-8?q?m=20trigger=E3=80=82?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On my host, when executing the udevadm trigger, I only receive the change event, which causes memleak CVE: CVE-2019-20386 Upstream-Status: Backport Signed-off-by: Adrian Bunk --- src/login/logind-button.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/login/logind-button.c b/src/login/logind-button.c index daffbf0668..1624a31cc3 100644 --- a/src/login/logind-button.c +++ b/src/login/logind-button.c @@ -341,7 +341,8 @@ int button_open(Button *b) { } (void) button_set_mask(b); - + + b->io_event_source = sd_event_source_unref(b->io_event_source); r = sd_event_add_io(b->manager->event, &b->io_event_source, b->fd, EPOLLIN, button_dispatch, b); if (r < 0) { log_error_errno(r, "Failed to add button event: %m"); -- 2.20.1