All of lore.kernel.org
 help / color / mirror / Atom feed
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Roland Dreier <roland-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Sean Hefty <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	Hal Rosenstock
	<hal.rosenstock-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Devesh Sharma
	<devesh.sharma-laKkSmNT4hbQT0dZR+AlfA@public.gmane.org>,
	Selvin Xavier
	<selvin.xavier-laKkSmNT4hbQT0dZR+AlfA@public.gmane.org>,
	Mitesh Ahuja
	<mitesh.ahuja-laKkSmNT4hbQT0dZR+AlfA@public.gmane.org>,
	Yishai Hadas <yishaih-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
	linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	kernel-janitors-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [patch] RDMA/ocrdma: off by one in ocrdma_query_gid()
Date: Mon, 16 Feb 2015 10:01:36 +0000	[thread overview]
Message-ID: <20150216100136.GA5579@mwanda> (raw)
In-Reply-To: <20120614183609.GE6383@elgon.mountain>

The ->sgid_tbl[] array has OCRDMA_MAX_SGID number of elements so this
test is off by one.  ->sgid_tbl is allocated in ocrdma_alloc_resources().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index fb8d8c4..18ea619 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -53,7 +53,7 @@ int ocrdma_query_gid(struct ib_device *ibdev, u8 port,
 
 	dev = get_ocrdma_dev(ibdev);
 	memset(sgid, 0, sizeof(*sgid));
-	if (index > OCRDMA_MAX_SGID)
+	if (index >= OCRDMA_MAX_SGID)
 		return -EINVAL;
 
 	memcpy(sgid, &dev->sgid_tbl[index], sizeof(*sgid));

WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
To: Roland Dreier <roland-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Sean Hefty <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	Hal Rosenstock
	<hal.rosenstock-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Devesh Sharma
	<devesh.sharma-laKkSmNT4hbQT0dZR+AlfA@public.gmane.org>,
	Selvin Xavier
	<selvin.xavier-laKkSmNT4hbQT0dZR+AlfA@public.gmane.org>,
	Mitesh Ahuja
	<mitesh.ahuja-laKkSmNT4hbQT0dZR+AlfA@public.gmane.org>,
	Yishai Hadas <yishaih-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
	linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	kernel-janitors-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [patch] RDMA/ocrdma: off by one in ocrdma_query_gid()
Date: Mon, 16 Feb 2015 13:01:36 +0300	[thread overview]
Message-ID: <20150216100136.GA5579@mwanda> (raw)

The ->sgid_tbl[] array has OCRDMA_MAX_SGID number of elements so this
test is off by one.  ->sgid_tbl is allocated in ocrdma_alloc_resources().

Signed-off-by: Dan Carpenter <dan.carpenter-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>

diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index fb8d8c4..18ea619 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -53,7 +53,7 @@ int ocrdma_query_gid(struct ib_device *ibdev, u8 port,
 
 	dev = get_ocrdma_dev(ibdev);
 	memset(sgid, 0, sizeof(*sgid));
-	if (index > OCRDMA_MAX_SGID)
+	if (index >= OCRDMA_MAX_SGID)
 		return -EINVAL;
 
 	memcpy(sgid, &dev->sgid_tbl[index], sizeof(*sgid));
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

  parent reply	other threads:[~2015-02-16 10:01 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-14 18:36 [patch] RDMA/ocrdma: off by one in ocrdma_query_gid() Dan Carpenter
2012-06-14 18:36 ` Dan Carpenter
     [not found] ` <20120614183609.GE6383-mgFCXtclrQlZLf2FXnZxJA@public.gmane.org>
2012-06-14 20:27   ` Roland Dreier
2012-06-14 20:27     ` Roland Dreier
2015-02-16 10:01 ` Dan Carpenter [this message]
2015-02-16 10:01   ` Dan Carpenter
2015-02-17  5:32   ` Selvin Xavier
2015-02-17  5:32     ` Selvin Xavier

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20150216100136.GA5579@mwanda \
    --to=dan.carpenter@oracle.com \
    --cc=devesh.sharma-laKkSmNT4hbQT0dZR+AlfA@public.gmane.org \
    --cc=hal.rosenstock-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
    --cc=kernel-janitors-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=mitesh.ahuja-laKkSmNT4hbQT0dZR+AlfA@public.gmane.org \
    --cc=roland-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org \
    --cc=sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org \
    --cc=selvin.xavier-laKkSmNT4hbQT0dZR+AlfA@public.gmane.org \
    --cc=yishaih-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.