85 lines
2.7 KiB
Diff
85 lines
2.7 KiB
Diff
commit ec6b95c3303c700eb89eebeda2d7264cc184a796
|
|
Author: Romain Geissler <romain.geissler@amadeus.com>
|
|
Date: Mon Sep 25 01:21:51 2023 +0100
|
|
|
|
Fix leak in getaddrinfo introduced by the fix for CVE-2023-4806 [BZ #30843]
|
|
|
|
This patch fixes a very recently added leak in getaddrinfo.
|
|
|
|
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
|
|
|
|
diff --git a/nss/Makefile b/nss/Makefile
|
|
index 9af46fb3a8195809..62a68880198c243c 100644
|
|
--- a/nss/Makefile
|
|
+++ b/nss/Makefile
|
|
@@ -148,6 +148,15 @@ endif
|
|
extra-test-objs += nss_test1.os nss_test2.os nss_test_errno.os \
|
|
nss_test_gai_hv2_canonname.os
|
|
|
|
+ifeq ($(run-built-tests),yes)
|
|
+ifneq (no,$(PERL))
|
|
+tests-special += $(objpfx)mtrace-tst-nss-gai-hv2-canonname.out
|
|
+endif
|
|
+endif
|
|
+
|
|
+generated += mtrace-tst-nss-gai-hv2-canonname.out \
|
|
+ tst-nss-gai-hv2-canonname.mtrace
|
|
+
|
|
include ../Rules
|
|
|
|
ifeq (yes,$(have-selinux))
|
|
@@ -216,6 +225,17 @@ endif
|
|
$(objpfx)tst-nss-files-alias-leak.out: $(objpfx)/libnss_files.so
|
|
$(objpfx)tst-nss-files-alias-truncated.out: $(objpfx)/libnss_files.so
|
|
|
|
+tst-nss-gai-hv2-canonname-ENV = \
|
|
+ MALLOC_TRACE=$(objpfx)tst-nss-gai-hv2-canonname.mtrace \
|
|
+ LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so
|
|
+$(objpfx)mtrace-tst-nss-gai-hv2-canonname.out: \
|
|
+ $(objpfx)tst-nss-gai-hv2-canonname.out
|
|
+ { test -r $(objpfx)tst-nss-gai-hv2-canonname.mtrace \
|
|
+ || ( echo "tst-nss-gai-hv2-canonname.mtrace does not exist"; exit 77; ) \
|
|
+ && $(common-objpfx)malloc/mtrace \
|
|
+ $(objpfx)tst-nss-gai-hv2-canonname.mtrace; } > $@; \
|
|
+ $(evaluate-test)
|
|
+
|
|
# Disable DT_RUNPATH on NSS tests so that the glibc internal NSS
|
|
# functions can load testing NSS modules via DT_RPATH.
|
|
LDFLAGS-tst-nss-test1 = -Wl,--disable-new-dtags
|
|
diff --git a/nss/tst-nss-gai-hv2-canonname.c b/nss/tst-nss-gai-hv2-canonname.c
|
|
index d5f10c07d6a90773..7db53cf09da8dcb6 100644
|
|
--- a/nss/tst-nss-gai-hv2-canonname.c
|
|
+++ b/nss/tst-nss-gai-hv2-canonname.c
|
|
@@ -21,6 +21,7 @@
|
|
#include <netdb.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
+#include <mcheck.h>
|
|
#include <support/check.h>
|
|
#include <support/xstdio.h>
|
|
#include "nss/tst-nss-gai-hv2-canonname.h"
|
|
@@ -41,6 +42,8 @@ static void do_prepare (int a, char **av)
|
|
static int
|
|
do_test (void)
|
|
{
|
|
+ mtrace ();
|
|
+
|
|
__nss_configure_lookup ("hosts", "test_gai_hv2_canonname");
|
|
|
|
struct addrinfo hints = {};
|
|
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
|
|
index 10dc63542f337693..d6046a707f1d742a 100644
|
|
--- a/sysdeps/posix/getaddrinfo.c
|
|
+++ b/sysdeps/posix/getaddrinfo.c
|
|
@@ -1196,9 +1196,7 @@ free_and_return:
|
|
if (malloc_name)
|
|
free ((char *) name);
|
|
free (addrmem);
|
|
- if (res.free_at)
|
|
- free (res.at);
|
|
- free (res.canon);
|
|
+ gaih_result_reset (&res);
|
|
|
|
return result;
|
|
}
|