+++ /dev/null
-From c4c92f3e8aff38d75047847ded940e1b3f9b688f Mon Sep 17 00:00:00 2001
-From: Matt Caswell <matt@openssl.org>
-Date: Thu, 7 Aug 2025 17:50:17 +0100
-Subject: [PATCH] Don't keep the store open in by_store_ctrl_ex
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Previously #27529 made a change to `by_store_ctrl_ex` in order to open
-the OSSL_STORE early. The reason given in that PR is:
-
-"This way, we can call OSSL_STORE_open_ex() in by_store_ctrl_ex(), and
-get to see possible errors when the URI is loaded"
-
-That PR then kept the store open until cache_objects is called and then
-reused it. Unfortunately by the time cache_objects() is called we could be
-in a multi-threaded scenario where the X509_STORE is being shared by
-multiple threads. We then get a race condition where multiple threads are
-all using (and ultimately closing) the same `OSSL_STORE_CTX`.
-
-The purpose of keeping the `OSSL_STORE` object between by_store_ctrl_ex()
-and `cache_objects` is presumably an optimisation to avoid having to open
-the store twice. But this does not work because of the above issue.
-
-We just take the hit and open it again.
-
-Fixes #28171
-
-Reviewed-by: Saša Nedvědický <sashan@openssl.org>
-Reviewed-by: Tomas Mraz <tomas@openssl.org>
-(Merged from https://github.com/openssl/openssl/pull/28198)
-
-(cherry picked from commit 08951fb27306ad9b4365103b8616b8545658ffcc)
----
- crypto/x509/by_store.c | 26 +++++++++++++-------------
- 1 file changed, 13 insertions(+), 13 deletions(-)
-
---- a/crypto/x509/by_store.c
-+++ b/crypto/x509/by_store.c
-@@ -17,7 +17,6 @@ typedef struct cached_store_st {
- char *uri;
- OSSL_LIB_CTX *libctx;
- char *propq;
-- OSSL_STORE_CTX *ctx;
- } CACHED_STORE;
-
- DEFINE_STACK_OF(CACHED_STORE)
-@@ -27,14 +26,12 @@ static int cache_objects(X509_LOOKUP *lc
- const OSSL_STORE_SEARCH *criterion, int depth)
- {
- int ok = 0;
-- OSSL_STORE_CTX *ctx = store->ctx;
-+ OSSL_STORE_CTX *ctx;
- X509_STORE *xstore = X509_LOOKUP_get_store(lctx);
-
-- if (ctx == NULL
-- && (ctx = OSSL_STORE_open_ex(store->uri, store->libctx, store->propq,
-- NULL, NULL, NULL, NULL, NULL)) == NULL)
-+ if ((ctx = OSSL_STORE_open_ex(store->uri, store->libctx, store->propq,
-+ NULL, NULL, NULL, NULL, NULL)) == NULL)
- return 0;
-- store->ctx = ctx;
-
- /*
- * We try to set the criterion, but don't care if it was valid or not.
-@@ -79,7 +76,6 @@ static int cache_objects(X509_LOOKUP *lc
- substore.uri = (char *)OSSL_STORE_INFO_get0_NAME(info);
- substore.libctx = store->libctx;
- substore.propq = store->propq;
-- substore.ctx = NULL;
- ok = cache_objects(lctx, &substore, criterion, depth - 1);
- }
- } else {
-@@ -105,7 +101,6 @@ static int cache_objects(X509_LOOKUP *lc
- break;
- }
- OSSL_STORE_close(ctx);
-- store->ctx = NULL;
-
- return ok;
- }
-@@ -114,7 +109,6 @@ static int cache_objects(X509_LOOKUP *lc
- static void free_store(CACHED_STORE *store)
- {
- if (store != NULL) {
-- OSSL_STORE_close(store->ctx);
- OPENSSL_free(store->uri);
- OPENSSL_free(store->propq);
- OPENSSL_free(store);
-@@ -136,6 +130,7 @@ static int by_store_ctrl_ex(X509_LOOKUP
- if (argp != NULL) {
- STACK_OF(CACHED_STORE) *stores = X509_LOOKUP_get_method_data(ctx);
- CACHED_STORE *store = OPENSSL_zalloc(sizeof(*store));
-+ OSSL_STORE_CTX *sctx;
-
- if (store == NULL) {
- return 0;
-@@ -145,14 +140,20 @@ static int by_store_ctrl_ex(X509_LOOKUP
- store->libctx = libctx;
- if (propq != NULL)
- store->propq = OPENSSL_strdup(propq);
-- store->ctx = OSSL_STORE_open_ex(argp, libctx, propq, NULL, NULL,
-- NULL, NULL, NULL);
-- if (store->ctx == NULL
-+ /*
-+ * We open this to check for errors now - so we can report those
-+ * errors early.
-+ */
-+ sctx = OSSL_STORE_open_ex(argp, libctx, propq, NULL, NULL,
-+ NULL, NULL, NULL);
-+ if (sctx == NULL
- || (propq != NULL && store->propq == NULL)
- || store->uri == NULL) {
-+ OSSL_STORE_close(sctx);
- free_store(store);
- return 0;
- }
-+ OSSL_STORE_close(sctx);
-
- if (stores == NULL) {
- stores = sk_CACHED_STORE_new_null();
-@@ -174,7 +175,6 @@ static int by_store_ctrl_ex(X509_LOOKUP
- store.uri = (char *)argp;
- store.libctx = libctx;
- store.propq = (char *)propq;
-- store.ctx = NULL;
- return cache_objects(ctx, &store, NULL, 0);
- }
- default: