83 lines
2.6 KiB
Diff
83 lines
2.6 KiB
Diff
|
commit 1081f1d3dd7c84ba3416b5198d47a4df2b70185d
|
||
|
|
Author: Martin Sebor <msebor@redhat.com>
|
||
|
|
Date: Mon Jan 17 10:21:34 2022 +0100
|
||
|
|
|
||
|
|
sunrpc: Test case for clnt_create "unix" buffer overflow (bug 22542)
|
||
|
|
|
||
|
|
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
|
||
|
|
(cherry picked from commit ef972a4c50014a16132b5c75571cfb6b30bef136)
|
||
|
|
|
||
|
|
diff --git a/sunrpc/Makefile b/sunrpc/Makefile
|
||
|
|
index 7e5bbfd951b1e835..a4281b18d04c78e9 100644
|
||
|
|
--- a/sunrpc/Makefile
|
||
|
|
+++ b/sunrpc/Makefile
|
||
|
|
@@ -65,7 +65,8 @@ shared-only-routines = $(routines)
|
||
|
|
endif
|
||
|
|
|
||
|
|
tests = tst-xdrmem tst-xdrmem2 test-rpcent tst-udp-error tst-udp-timeout \
|
||
|
|
- tst-udp-nonblocking
|
||
|
|
+ tst-udp-nonblocking tst-bug22542
|
||
|
|
+
|
||
|
|
xtests := tst-getmyaddr
|
||
|
|
|
||
|
|
ifeq ($(have-thread-library),yes)
|
||
|
|
@@ -110,6 +111,8 @@ $(objpfx)tst-udp-nonblocking: $(common-objpfx)linkobj/libc.so
|
||
|
|
$(objpfx)tst-udp-garbage: \
|
||
|
|
$(common-objpfx)linkobj/libc.so $(shared-thread-library)
|
||
|
|
|
||
|
|
+$(objpfx)tst-bug22542: $(common-objpfx)linkobj/libc.so
|
||
|
|
+
|
||
|
|
else # !have-GLIBC_2.31
|
||
|
|
|
||
|
|
routines = $(routines-for-nss)
|
||
|
|
diff --git a/sunrpc/tst-bug22542.c b/sunrpc/tst-bug22542.c
|
||
|
|
new file mode 100644
|
||
|
|
index 0000000000000000..d6cd79787bdef21d
|
||
|
|
--- /dev/null
|
||
|
|
+++ b/sunrpc/tst-bug22542.c
|
||
|
|
@@ -0,0 +1,44 @@
|
||
|
|
+/* Test to verify that overlong hostname is rejected by clnt_create
|
||
|
|
+ and doesn't cause a buffer overflow (bug 22542).
|
||
|
|
+
|
||
|
|
+ Copyright (C) 2022 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
|
||
|
|
+ <http://www.gnu.org/licenses/>. */
|
||
|
|
+
|
||
|
|
+#include <errno.h>
|
||
|
|
+#include <rpc/clnt.h>
|
||
|
|
+#include <string.h>
|
||
|
|
+#include <support/check.h>
|
||
|
|
+#include <sys/socket.h>
|
||
|
|
+#include <sys/un.h>
|
||
|
|
+
|
||
|
|
+static int
|
||
|
|
+do_test (void)
|
||
|
|
+{
|
||
|
|
+ /* Create an arbitrary hostname that's longer than fits in sun_path. */
|
||
|
|
+ char name [sizeof ((struct sockaddr_un*)0)->sun_path * 2];
|
||
|
|
+ memset (name, 'x', sizeof name - 1);
|
||
|
|
+ name [sizeof name - 1] = '\0';
|
||
|
|
+
|
||
|
|
+ errno = 0;
|
||
|
|
+ CLIENT *clnt = clnt_create (name, 0, 0, "unix");
|
||
|
|
+
|
||
|
|
+ TEST_VERIFY (clnt == NULL);
|
||
|
|
+ TEST_COMPARE (errno, EINVAL);
|
||
|
|
+ return 0;
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
+#include <support/test-driver.c>
|