From: Florian Westphal <fw@strlen.de>
To: <netdev@vger.kernel.org>
Cc: tariqt@mellanox.com, ranro@mellanox.com, maorg@mellanox.com,
edumazet@google.com, Florian Westphal <fw@strlen.de>
Subject: [PATCH net-next 2/2] selftests: rtnetlink: add addresses with fixed life time
Date: Mon, 17 Jun 2019 16:02:28 +0200 [thread overview]
Message-ID: <20190617140228.12523-3-fw@strlen.de> (raw)
In-Reply-To: <20190617140228.12523-1-fw@strlen.de>
This exercises kernel code path that deal with addresses that have
a limited lifetime.
Without previous fix, this triggers following crash on net-next:
BUG: KASAN: null-ptr-deref in check_lifetime+0x403/0x670
Read of size 8 at addr 0000000000000010 by task kworker [..]
Signed-off-by: Florian Westphal <fw@strlen.de>
---
tools/testing/selftests/net/rtnetlink.sh | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh
index b25c9fe019d2..ed606a2e3865 100755
--- a/tools/testing/selftests/net/rtnetlink.sh
+++ b/tools/testing/selftests/net/rtnetlink.sh
@@ -249,6 +249,26 @@ kci_test_route_get()
echo "PASS: route get"
}
+kci_test_addrlft()
+{
+ for i in $(seq 10 100) ;do
+ lft=$(((RANDOM%3) + 1))
+ ip addr add 10.23.11.$i/32 dev "$devdummy" preferred_lft $lft valid_lft $((lft+1))
+ check_err $?
+ done
+
+ sleep 5
+
+ ip addr show dev "$devdummy" | grep "10.23.11."
+ if [ $? -eq 0 ]; then
+ echo "FAIL: preferred_lft addresses remaining"
+ check_err 1
+ return
+ fi
+
+ echo "PASS: preferred_lft addresses have expired"
+}
+
kci_test_addrlabel()
{
ret=0
@@ -1140,6 +1160,7 @@ kci_test_rtnl()
kci_test_polrouting
kci_test_route_get
+ kci_test_addrlft
kci_test_tc
kci_test_gre
kci_test_gretap
--
2.21.0
next prev parent reply other threads:[~2019-06-17 14:14 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-17 14:02 [PATCH net-next 0/2] net: ipv4: remove erroneous advancement of list pointer Florian Westphal
2019-06-17 14:02 ` [PATCH net-next 1/2] " Florian Westphal
2019-06-17 14:02 ` Florian Westphal [this message]
2019-06-17 16:16 ` [PATCH net-next 0/2] " Tariq Toukan
2019-06-25 9:04 ` Ran Rozenstein
2019-06-25 9:19 ` Florian Westphal
2019-06-26 12:48 ` Ran Rozenstein
2019-06-26 20:37 ` Florian Westphal
2019-06-26 23:32 ` Florian Westphal
2019-06-17 23:27 ` David Miller
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