From 67fdfef9a786fdd08da5456fca6fb30ff0d27be0 Mon Sep 17 00:00:00 2001
From: Kamil Dudka <kdudka@redhat.com>
Date: Mon, 24 Apr 2017 15:01:04 +0200
Subject: [PATCH] nss: do not leak PKCS #11 slot while loading a key

It could prevent nss-pem from being unloaded later on.

Bug: https://bugzilla.redhat.com/1444860

Upstream-commit: c8ea86f377a2f341db635ec96f99314023b5a8f3
Signed-off-by: Kamil Dudka <kdudka@redhat.com>
---
 lib/nss.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/nss.c b/lib/nss.c
index b73a1e8..86775b4 100644
--- a/lib/nss.c
+++ b/lib/nss.c
@@ -551,7 +551,7 @@ fail:
 static CURLcode nss_load_key(struct connectdata *conn, int sockindex,
                              char *key_file)
 {
-  PK11SlotInfo *slot;
+  PK11SlotInfo *slot, *tmp;
   SECStatus status;
   CURLcode rv;
   struct ssl_connect_data *ssl = conn->ssl;
@@ -568,7 +568,9 @@ static CURLcode nss_load_key(struct connectdata *conn, int sockindex,
     return CURLE_SSL_CERTPROBLEM;
 
   /* This will force the token to be seen as re-inserted */
-  SECMOD_WaitForAnyTokenEvent(mod, 0, 0);
+  tmp = SECMOD_WaitForAnyTokenEvent(mod, 0, 0);
+  if(tmp)
+    PK11_FreeSlot(tmp);
   PK11_IsPresent(slot);
 
   status = PK11_Authenticate(slot, PR_TRUE,
-- 
2.13.5