mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-21 01:12:26 +08:00
63 lines
2.0 KiB
C
63 lines
2.0 KiB
C
/* Check for use-after-free in clntudp_call (bug 21115).
|
|
Copyright (C) 2017-2024 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <netinet/in.h>
|
|
#include <rpc/clnt.h>
|
|
#include <rpc/svc.h>
|
|
#include <support/check.h>
|
|
#include <support/namespace.h>
|
|
#include <support/xsocket.h>
|
|
#include <unistd.h>
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
support_become_root ();
|
|
support_enter_network_namespace ();
|
|
|
|
/* Obtain a likely-unused port number. */
|
|
struct sockaddr_in sin =
|
|
{
|
|
.sin_family = AF_INET,
|
|
.sin_addr.s_addr = htonl (INADDR_LOOPBACK),
|
|
};
|
|
{
|
|
int fd = xsocket (AF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
|
|
xbind (fd, (struct sockaddr *) &sin, sizeof (sin));
|
|
socklen_t sinlen = sizeof (sin);
|
|
xgetsockname (fd, (struct sockaddr *) &sin, &sinlen);
|
|
/* Close the socket, so that we will receive an error below. */
|
|
close (fd);
|
|
}
|
|
|
|
int sock = RPC_ANYSOCK;
|
|
CLIENT *clnt = clntudp_create
|
|
(&sin, 1, 2, (struct timeval) { 1, 0 }, &sock);
|
|
TEST_VERIFY_EXIT (clnt != NULL);
|
|
TEST_VERIFY (clnt_call (clnt, 3,
|
|
(xdrproc_t) xdr_void, NULL,
|
|
(xdrproc_t) xdr_void, NULL,
|
|
((struct timeval) { 3, 0 }))
|
|
== RPC_CANTRECV);
|
|
clnt_destroy (clnt);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|