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Commit | Line | Data |
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2a2a4ae2 SL |
1 | From a42d0b4a0dc65f304d2db5eac6e21bf05b61693b Mon Sep 17 00:00:00 2001 |
2 | From: Varun Prakash <varun@chelsio.com> | |
3 | Date: Wed, 22 May 2019 20:10:55 +0530 | |
4 | Subject: scsi: libcxgbi: add a check for NULL pointer in cxgbi_check_route() | |
5 | ||
6 | [ Upstream commit cc555759117e8349088e0c5d19f2f2a500bafdbd ] | |
7 | ||
8 | ip_dev_find() can return NULL so add a check for NULL pointer. | |
9 | ||
10 | Signed-off-by: Varun Prakash <varun@chelsio.com> | |
11 | Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> | |
12 | Signed-off-by: Sasha Levin <sashal@kernel.org> | |
13 | --- | |
14 | drivers/scsi/cxgbi/libcxgbi.c | 4 ++++ | |
15 | 1 file changed, 4 insertions(+) | |
16 | ||
17 | diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c | |
18 | index 512c8f1ea5b0..902f5e03ec94 100644 | |
19 | --- a/drivers/scsi/cxgbi/libcxgbi.c | |
20 | +++ b/drivers/scsi/cxgbi/libcxgbi.c | |
21 | @@ -640,6 +640,10 @@ cxgbi_check_route(struct sockaddr *dst_addr, int ifindex) | |
22 | ||
23 | if (ndev->flags & IFF_LOOPBACK) { | |
24 | ndev = ip_dev_find(&init_net, daddr->sin_addr.s_addr); | |
25 | + if (!ndev) { | |
26 | + err = -ENETUNREACH; | |
27 | + goto rel_neigh; | |
28 | + } | |
29 | mtu = ndev->mtu; | |
30 | pr_info("rt dev %s, loopback -> %s, mtu %u.\n", | |
31 | n->dev->name, ndev->name, mtu); | |
32 | -- | |
33 | 2.20.1 | |
34 |