[issue29340] SSL destructor segfaults in python3.6 threads when an unverified-cert connection is closed

[Christian Heimes]

Christian Heimes added the comment:

SSL_CTX_free:

    if (a->rbuf_freelist)
        ssl_buf_freelist_free(a->rbuf_freelist);

(gdb) p list
$1 = (SSL3_BUF_FREELIST *) 0x7fffe8003b50
(gdb) p *list
$2 = {chunklen = 33096, len = 1, head = 0x7fffe8031c00}
(gdb) p *list->head
$3 = {next = 0x5000030317000000}
(gdb) p *list->head->next
Cannot access memory at address 0x5000030317000000

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue29340>
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