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From 193ce739b2a5174269a958b00c3a5590de944e0d Mon Sep 17 00:00:00 2001
From: Huacai Chen <chenhc@lemote.com>
Date: Thu, 27 Oct 2016 14:45:52 +0800
Subject: [PATCH] containers/netns_netlink: Avoid segmentation fault
In order to avoid segmentation fault (use NULL as a function pointer),
this patch modify check_netns() by passing a dummy function pointer to
do_clone_unshare_test().
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
Upstream-Status: Backport
Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
---
testcases/kernel/containers/netns/netns_helper.h | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/testcases/kernel/containers/netns/netns_helper.h b/testcases/kernel/containers/netns/netns_helper.h
index 2a331ae..7df6dcb 100644
--- a/testcases/kernel/containers/netns/netns_helper.h
+++ b/testcases/kernel/containers/netns/netns_helper.h
@@ -56,6 +56,12 @@ static void check_iproute(unsigned int spe_ipver)
pclose(ipf);
}
+static int dummy(void *arg)
+{
+ (void) arg;
+ return 0;
+}
+
static void check_netns(void)
{
int pid, status;
@@ -64,8 +70,8 @@ static void check_netns(void)
tst_brkm(TCONF | TERRNO, NULL, "CLONE_NEWNS (%d) not supported",
CLONE_NEWNS);
- pid = do_clone_unshare_test(T_UNSHARE, CLONE_NEWNET | CLONE_NEWNS, NULL,
- NULL);
+ pid = do_clone_unshare_test(T_UNSHARE, CLONE_NEWNET | CLONE_NEWNS,
+ dummy, NULL);
if (pid == -1)
tst_brkm(TCONF | TERRNO, NULL,
"unshare syscall smoke test failed");
--
2.7.4
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