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Fix: Fixed invalid locking.

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* listensocket_get_listener() must always be called with a matching call
  to listensocket_release_listener
* No ticket for this, but may be related to #2372.
* Found an reported by Xogium on IRC.

See: #2372
This commit is contained in:
Philipp Schafft 2019-11-22 14:48:49 +00:00
parent ddafdd971f
commit 6ca6283cb4
1 changed files with 8 additions and 2 deletions
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10
src/client.c
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@ -75,6 +75,7 @@ int client_create(client_t **c_ptr, connection_t *con, http_parser_t *parser)
{
ice_config_t *config;
client_t *client = (client_t *) calloc(1, sizeof(client_t));
const listener_t *listener_real, *listener_effective;
int ret = -1;
if (client == NULL)
@ -104,11 +105,15 @@ int client_create(client_t **c_ptr, connection_t *con, http_parser_t *parser)
client->write_to_client = format_generic_write_to_client;
*c_ptr = client;
listener_real = listensocket_get_listener(con->listensocket_real);
listener_effective = listensocket_get_listener(con->listensocket_effective);
ICECAST_LOG_DEBUG("Client %p created on connection %p (connection ID: %llu, socket real: %p \"%H\", socket effective: %p \"%H\")",
client, con, (long long unsigned int)con->id,
con->listensocket_real, con->listensocket_real ? listensocket_get_listener(con->listensocket_real)->id : NULL,
con->listensocket_effective, con->listensocket_effective ? listensocket_get_listener(con->listensocket_effective)->id : NULL
con->listensocket_real, con->listensocket_real ? listener_real->id : NULL,
con->listensocket_effective, con->listensocket_effective ? listener_effective->id : NULL
);
listensocket_release_listener(con->listensocket_effective);
listensocket_release_listener(con->listensocket_real);
fastevent_emit(FASTEVENT_TYPE_CLIENT_CREATE, FASTEVENT_FLAG_MODIFICATION_ALLOWED, FASTEVENT_DATATYPE_CLIENT, client);
@ -983,6 +988,7 @@ ssize_t client_get_baseurl(client_t *client, listensocket_t *listensocket, char
port = listener->port;
if (!client)
tlsmode = listener->tls;
listensocket_release_listener(listensocket);
}
}