From 81e74d598b080de5c6a66585ebf2a9d6d1186f00 Mon Sep 17 00:00:00 2001
From: Christian Göttsche <cgzones@googlemail.com>
Date: Wed, 8 Feb 2023 18:07:59 +0100
Subject: pam_env: override undefined pointer after asprintf failure

On failure the content of the string pointer passed to asprintf(3) is
undefined.  Set to NULL before free'ing the parent array.
---
 modules/pam_env/pam_env.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'modules/pam_env')

diff --git a/modules/pam_env/pam_env.c b/modules/pam_env/pam_env.c
index a25e195b..2868cfce 100644
--- a/modules/pam_env/pam_env.c
+++ b/modules/pam_env/pam_env.c
@@ -265,6 +265,7 @@ econf_read_file(const pam_handle_t *pamh, const char *filename, const char *deli
 	  pam_syslog(pamh, LOG_ERR, "Cannot allocate memory.");
           econf_free(keys);
           econf_freeFile(key_file);
+	  (*lines)[i] = NULL;
 	  free_string_array(*lines);
 	  free (val);
 	  return PAM_BUF_ERR;
-- 
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