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BUG/MAJOR: http: don't emit the send-name-header when no server is available

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Lukas Benes reported that http-send-name-header causes a segfault if no
server is available because we're dereferencing the session's target which
is NULL. The tiniest reproducer looks like this :

     listen foo
         bind :1234
         mode http
         http-send-name-header srv

This obvious fix must be backported to 1.4 which is affected as well.
This commit is contained in:
Willy Tarreau 2013-07-04 11:44:27 +02:00
parent 092502605e
commit 0fc36e3ae9
1 changed files with 1 additions and 1 deletions
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2
src/session.c
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@ -2202,7 +2202,7 @@ struct task *process_session(struct task *t)
/* check for HTTP mode and proxy server_name_hdr_name != NULL */ /* check for HTTP mode and proxy server_name_hdr_name != NULL */
if ((s->flags & SN_BE_ASSIGNED) && if ((s->flags & SN_BE_ASSIGNED) &&
(s->be->mode == PR_MODE_HTTP) && (s->be->mode == PR_MODE_HTTP) &&
(s->be->server_id_hdr_name != NULL)) { (s->be->server_id_hdr_name != NULL && s->target)) {
http_send_name_header(&s->txn, s->be, objt_server(s->target)->id); http_send_name_header(&s->txn, s->be, objt_server(s->target)->id);
} }
} }