From: Leon Romanovsky <leon@kernel.org>
To: David Ahern <dsahern@gmail.com>
Cc: Leon Romanovsky <leonro@mellanox.com>,
netdev <netdev@vger.kernel.org>,
Stephen Hemminger <stephen@networkplumber.org>
Subject: [PATCH iproute2-next 02/10] rdma: Protect dev_map_lookup from wrong input
Date: Wed, 27 Dec 2017 09:57:51 +0200 [thread overview]
Message-ID: <20171227075759.15289-3-leon@kernel.org> (raw)
In-Reply-To: <20171227075759.15289-1-leon@kernel.org>
From: Leon Romanovsky <leonro@mellanox.com>
Despite the fact that all callers to dev_map_lookup are ensuring that
there is always device name prior to call to that function, it is better
and safer to check that in the dev_map_lookup itself.
Fixes: 40df8263a0f0 ("rdma: Add dev object")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
---
rdma/utils.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/rdma/utils.c b/rdma/utils.c
index 6ce1fd70..bb29fa1a 100644
--- a/rdma/utils.c
+++ b/rdma/utils.c
@@ -253,6 +253,9 @@ struct dev_map *dev_map_lookup(struct rd *rd, bool allow_port_index)
char *dev_name;
char *slash;
+ if (rd_no_arg(rd))
+ return NULL;
+
dev_name = strdup(rd_argv(rd));
if (allow_port_index) {
slash = strrchr(dev_name, '/');
--
2.15.1
next prev parent reply other threads:[~2017-12-27 7:58 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-27 7:57 [PATCH iproute2-next 00/10] RDMAtool cleanup and refactoring code Leon Romanovsky
2017-12-27 7:57 ` [PATCH iproute2-next 01/10] rdma: Reduce scope of _dev_map_lookup call Leon Romanovsky
2017-12-27 7:57 ` Leon Romanovsky [this message]
2017-12-27 7:57 ` [PATCH iproute2-next 03/10] rdma: Move per-device handler function to generic code Leon Romanovsky
2017-12-27 7:57 ` [PATCH iproute2-next 04/10] rdma: Fix misspelled SYS_IMAGE_GUID Leon Romanovsky
2017-12-27 7:57 ` [PATCH iproute2-next 05/10] rdma: Check that port index exists before operate on link layer Leon Romanovsky
2017-12-27 7:57 ` [PATCH iproute2-next 06/10] rdma: Print supplied device name in case of wrong name Leon Romanovsky
2017-12-27 7:57 ` [PATCH iproute2-next 07/10] rdma: Get rid of dev_map_free call Leon Romanovsky
2017-12-27 7:57 ` [PATCH iproute2-next 08/10] rdma: Rename free function to be rd_cleanup Leon Romanovsky
2017-12-27 7:57 ` [PATCH iproute2-next 09/10] rdma: Rename rd_free_devmap to be rd_free Leon Romanovsky
2017-12-27 7:57 ` [PATCH iproute2-next 10/10] rdma: Move link execution logic to common code Leon Romanovsky
2017-12-27 15:45 ` [PATCH iproute2-next 00/10] RDMAtool cleanup and refactoring code David Ahern
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