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--- pam_ssh-1.92.orig/pam_get_pass.c 2004-02-19 19:59:05.000000000 +0100
+++ pam_ssh-1.92/pam_get_pass.c 2009-04-18 13:51:10.000000000 +0200
@@ -63,6 +63,8 @@
retval = conv->conv(1, msgs, &resp, conv->appdata_ptr);
if (retval != PAM_SUCCESS)
return retval;
+ if (resp[0].resp == NULL)
+ return PAM_AUTHTOK_RECOVERY_ERR;
retval = pam_set_item(pamh, PAM_AUTHTOK, resp[0].resp);
if (retval != PAM_SUCCESS)
return retval;
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