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https://bugs.gentoo.org/885797
https://github.com/openssl/openssl/commit/7725e7bfe6f2ce8146b6552b44e0d226be7638e7
https://github.com/openssl/openssl/issues/19643
From 7725e7bfe6f2ce8146b6552b44e0d226be7638e7 Mon Sep 17 00:00:00 2001
From: Pauli <pauli@openssl.org>
Date: Fri, 11 Nov 2022 09:40:19 +1100
Subject: [PATCH] x509: fix double locking problem
This reverts commit 9aa4be691f5c73eb3c68606d824c104550c053f7 and removed the
redundant flag setting.
Fixes #19643
Fixes LOW CVE-2022-3996
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19652)
(cherry picked from commit 4d0340a6d2f327700a059f0b8f954d6160f8eef5)
--- a/crypto/x509/pcy_map.c
+++ b/crypto/x509/pcy_map.c
@@ -73,10 +73,6 @@ int ossl_policy_cache_set_mapping(X509 *x, POLICY_MAPPINGS *maps)
ret = 1;
bad_mapping:
- if (ret == -1 && CRYPTO_THREAD_write_lock(x->lock)) {
- x->ex_flags |= EXFLAG_INVALID_POLICY;
- CRYPTO_THREAD_unlock(x->lock);
- }
sk_POLICY_MAPPING_pop_free(maps, POLICY_MAPPING_free);
return ret;
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