* [PATCH][xfrm-next] xfrm6: remove BUG_ON from xfrm6_dst_ifdown
@ 2018-11-12 9:28 Li RongQing
2018-11-23 7:53 ` Steffen Klassert
0 siblings, 1 reply; 2+ messages in thread
From: Li RongQing @ 2018-11-12 9:28 UTC (permalink / raw)
To: netdev, steffen.klassert
if loopback_idev is NULL pointer, and the following access of
loopback_idev will trigger panic, which is same as BUG_ON
Signed-off-by: Li RongQing <lirongqing@baidu.com>
---
net/ipv6/xfrm6_policy.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index d35bcf92969c..769f8f78d3b8 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -262,7 +262,6 @@ static void xfrm6_dst_ifdown(struct dst_entry *dst, struct net_device *dev,
if (xdst->u.rt6.rt6i_idev->dev == dev) {
struct inet6_dev *loopback_idev =
in6_dev_get(dev_net(dev)->loopback_dev);
- BUG_ON(!loopback_idev);
do {
in6_dev_put(xdst->u.rt6.rt6i_idev);
--
2.16.2
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2018-11-12 9:28 [PATCH][xfrm-next] xfrm6: remove BUG_ON from xfrm6_dst_ifdown Li RongQing
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