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selftests: rtnetlink: add addresses with fixed life time

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[ Upstream commit 3cfa148826e3c666da1cc2a43fbe8689e2650636 ]

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>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Florian Westphal 2019-06-17 16:02:28 +02:00 committed by Greg Kroah-Hartman
parent 72e77ea7b5
commit 544d4b9fc4
1 changed files with 21 additions and 0 deletions
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21
tools/testing/selftests/net/rtnetlink.sh
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@ -195,6 +195,26 @@ 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
@ -245,6 +265,7 @@ kci_test_rtnl()
kci_test_polrouting
kci_test_route_get
kci_test_addrlft
kci_test_tc
kci_test_gre
kci_test_bridge