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author | Azat Khuzhin <azat@libevent.org> | 2019-03-16 17:28:31 +0300 |
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committer | Azat Khuzhin <azat@libevent.org> | 2019-03-16 17:30:15 +0300 |
commit | 6995b9a864c16bcb84ea0f7a2cf856143020316b (patch) | |
tree | 469d73caad8bc26c83dfb574f9e0723ec2a56e7a /bufferevent.c | |
parent | efcc18442b338d931f6dfe71d5ebaff3c6fa2b03 (diff) | |
download | libevent-6995b9a864c16bcb84ea0f7a2cf856143020316b.tar.gz |
Fix leaks in error path of the bufferevent_init_common_()
Diffstat (limited to 'bufferevent.c')
-rw-r--r-- | bufferevent.c | 34 |
1 files changed, 19 insertions, 15 deletions
diff --git a/bufferevent.c b/bufferevent.c index ef7c2eaf..08c0486c 100644 --- a/bufferevent.c +++ b/bufferevent.c @@ -315,14 +315,12 @@ bufferevent_init_common_(struct bufferevent_private *bufev_private, if (!bufev->input) { if ((bufev->input = evbuffer_new()) == NULL) - return -1; + goto err; } if (!bufev->output) { - if ((bufev->output = evbuffer_new()) == NULL) { - evbuffer_free(bufev->input); - return -1; - } + if ((bufev->output = evbuffer_new()) == NULL) + goto err; } bufev_private->refcnt = 1; @@ -334,7 +332,8 @@ bufferevent_init_common_(struct bufferevent_private *bufev_private, bufev->be_ops = ops; - bufferevent_ratelim_init_(bufev_private); + if (bufferevent_ratelim_init_(bufev_private)) + goto err; /* * Set to EV_WRITE so that using bufferevent_write is going to @@ -345,20 +344,14 @@ bufferevent_init_common_(struct bufferevent_private *bufev_private, #ifndef EVENT__DISABLE_THREAD_SUPPORT if (options & BEV_OPT_THREADSAFE) { - if (bufferevent_enable_locking_(bufev, NULL) < 0) { - /* cleanup */ - evbuffer_free(bufev->input); - evbuffer_free(bufev->output); - bufev->input = NULL; - bufev->output = NULL; - return -1; - } + if (bufferevent_enable_locking_(bufev, NULL) < 0) + goto err; } #endif if ((options & (BEV_OPT_DEFER_CALLBACKS|BEV_OPT_UNLOCK_CALLBACKS)) == BEV_OPT_UNLOCK_CALLBACKS) { event_warnx("UNLOCK_CALLBACKS requires DEFER_CALLBACKS"); - return -1; + goto err; } if (options & BEV_OPT_UNLOCK_CALLBACKS) event_deferred_cb_init_( @@ -379,6 +372,17 @@ bufferevent_init_common_(struct bufferevent_private *bufev_private, evbuffer_set_parent_(bufev->output, bufev); return 0; + +err: + if (bufev->input) { + evbuffer_free(bufev->input); + bufev->input = NULL; + } + if (bufev->output) { + evbuffer_free(bufev->output); + bufev->output = NULL; + } + return -1; } void |