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Commit 3cfa1488 authored by Florian Westphal's avatar Florian Westphal Committed by David S. Miller
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selftests: rtnetlink: add addresses with fixed life time 



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: default avatarFlorian Westphal <fw@strlen.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 40008e92

tools/testing/selftests/net/rtnetlink.sh

+21 −0
Original line number Diff line number Diff line
@@ -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