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| author | Varun Prakash <varun@chelsio.com> | 2019-05-22 20:10:55 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-22 08:17:24 +0200 |
| commit | 1a0c974d23778001eb80debd49d8d0baedcf530f (patch) | |
| tree | 1dbcae1cc8ebff335209b8d0b23fecbf338b6795 | |
| parent | 9b25b0c790c566275ac6fbeefd6d90c9a56f64ab (diff) | |
| download | linux-stable-1a0c974d23778001eb80debd49d8d0baedcf530f.tar.gz linux-stable-1a0c974d23778001eb80debd49d8d0baedcf530f.tar.bz2 linux-stable-1a0c974d23778001eb80debd49d8d0baedcf530f.zip | |
scsi: libcxgbi: add a check for NULL pointer in cxgbi_check_route()
[ Upstream commit cc555759117e8349088e0c5d19f2f2a500bafdbd ]
ip_dev_find() can return NULL so add a check for NULL pointer.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/scsi/cxgbi/libcxgbi.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c index 2ffe029ff2b6..e974106f2bb5 100644 --- a/drivers/scsi/cxgbi/libcxgbi.c +++ b/drivers/scsi/cxgbi/libcxgbi.c @@ -637,6 +637,10 @@ static struct cxgbi_sock *cxgbi_check_route(struct sockaddr *dst_addr) if (ndev->flags & IFF_LOOPBACK) { ndev = ip_dev_find(&init_net, daddr->sin_addr.s_addr); + if (!ndev) { + err = -ENETUNREACH; + goto rel_neigh; + } mtu = ndev->mtu; pr_info("rt dev %s, loopback -> %s, mtu %u.\n", n->dev->name, ndev->name, mtu); |