[linux-pam] pam_filter: Avoid leaking descriptors when fork() fails.

[Tomáš Mráz]

commit bbe948ae58314ce3395d39e0fe49cdba309c29df
Author: Robin Hack <rhack(a)redhat.com&gt;
Date:   Mon Aug 25 17:30:01 2014 +0200

    pam_filter: Avoid leaking descriptors when fork() fails.
    
    modules/pam_filter/pam_filter.c (set_filter): Close descriptors when fork() fails.

 modules/pam_filter/pam_filter.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/modules/pam_filter/pam_filter.c b/modules/pam_filter/pam_filter.c
index da98148..9935d99 100644
--- a/modules/pam_filter/pam_filter.c
+++ b/modules/pam_filter/pam_filter.c
@@ -341,6 +341,11 @@ set_filter (pam_handle_t *pamh, int flags UNUSED, int ctrl,
 	pam_syslog(pamh, LOG_WARNING, "first fork failed: %m");
 	if (aterminal) {
 		(void) tcsetattr(STDIN_FILENO, TCSAFLUSH, &stored_mode);
+		close(fd[0]);
+	} else {
+		/* Socket pair */
+		close(fd[0]);
+		close(fd[1]);
 	}
 
 	return PAM_AUTH_ERR;