1 files changed, 2 insertions, 1 deletions

diff --git a/auth-pam.c b/auth-pam.c
index bfd8f3270..35aecbdb4 100644
--- a/auth-pam.c
+++ b/auth-pam.c
@@ -984,7 +984,8 @@ sshpam_tty_conv(int n, sshpam_const struct pam_message **msg,
                         break;
                 case PAM_PROMPT_ECHO_ON:
                         fprintf(stderr, "%s\n", PAM_MSG_MEMBER(msg, i, msg));
-                        fgets(input, sizeof input, stdin);
+                        if (fgets(input, sizeof input, stdin) == NULL)
+                                input[0] = '\0';
                         if ((reply[i].resp = strdup(input)) == NULL)
                                 goto fail;
                         reply[i].resp_retcode = PAM_SUCCESS;