Add a lock around the OBJ_NAME table
Various initialization functions modify this table, which can cause heap corruption in the absence of external synchronization. Some stats are modified from OPENSSL_LH_retrieve, where callers aren't expecting to have to take out an exclusive lock. Switch to using atomic operations for those stats. Reviewed-by: NMatt Caswell <matt@openssl.org> Reviewed-by: NRich Salz <rsalz@openssl.org> (Merged from https://github.com/openssl/openssl/pull/3525)
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