projects / thirdparty / kernel / stable-queue.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 |