view src/event/ngx_event_posted.c @ 7493:dbebbb25ae92

OCSP stapling: fixed segfault with dynamic certificate loading. If OCSP stapling was enabled with dynamic certificate loading, with some OpenSSL versions (1.0.2o and older, 1.1.0h and older; fixed in 1.0.2p, 1.1.0i, 1.1.1) a segmentation fault might happen. The reason is that during an abbreviated handshake the certificate callback is not called, but the certificate status callback was called (https://github.com/openssl/openssl/issues/1662), leading to NULL being returned from SSL_get_certificate(). Fix is to explicitly check SSL_get_certificate() result.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 15 Apr 2019 19:13:09 +0300
parents 3f5f0ab59b35
children 9d2ad2fb4423
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/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_event.h>


ngx_queue_t  ngx_posted_accept_events;
ngx_queue_t  ngx_posted_events;


void
ngx_event_process_posted(ngx_cycle_t *cycle, ngx_queue_t *posted)
{
    ngx_queue_t  *q;
    ngx_event_t  *ev;

    while (!ngx_queue_empty(posted)) {

        q = ngx_queue_head(posted);
        ev = ngx_queue_data(q, ngx_event_t, queue);

        ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
                      "posted event %p", ev);

        ngx_delete_posted_event(ev);

        ev->handler(ev);
    }
}