From 27dbe1a18423f2f80c10d191844a0ba4dea650ff Mon Sep 17 00:00:00 2001 From: Michael Paquier Date: Wed, 22 Apr 2020 07:27:03 +0900 Subject: [PATCH] Fix memory leak in libpq when using sslmode=verify-full Checking if Subject Alternative Names (SANs) from a certificate match with the hostname connected to leaked memory after each lookup done. This is broken since acd08d7 that added support for SANs in SSL certificates, so backpatch down to 9.5. Author: Roman Peshkurov Reviewed-by: Hamid Akhtar, Michael Paquier, David Steele Discussion: https://postgr.es/m/CALLDf-pZ-E3mjxd5=bnHsDu9zHEOnpgPgdnO84E2RuwMCjjyPw@mail.gmail.com Backpatch-through: 9.5 --- src/interfaces/libpq/fe-secure-openssl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/interfaces/libpq/fe-secure-openssl.c b/src/interfaces/libpq/fe-secure-openssl.c index d3a37e1d27..731aa23c55 100644 --- a/src/interfaces/libpq/fe-secure-openssl.c +++ b/src/interfaces/libpq/fe-secure-openssl.c @@ -552,7 +552,7 @@ pgtls_verify_peer_name_matches_certificate_guts(PGconn *conn, if (rc != 0) break; } - sk_GENERAL_NAME_free(peer_san); + sk_GENERAL_NAME_pop_free(peer_san, GENERAL_NAME_free); } /*