From: Alexander Duyck <alexander.h.duyck@linux.intel.com>
To: dan.j.williams@intel.com, linux-nvdimm@lists.01.org
Cc: alexander.h.duyck@linux.intel.com, zwisler@kernel.org
Subject: [nvdimm PATCH 2/6] nvdimm: Sanity check labeloff
Date: Wed, 10 Oct 2018 16:38:41 -0700 [thread overview]
Message-ID: <20181010233830.12228.1116.stgit@localhost.localdomain> (raw)
In-Reply-To: <20181010233428.12228.26106.stgit@localhost.localdomain>
This patch adds validation for the labeloff field in the indexes.
Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
---
drivers/nvdimm/label.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/nvdimm/label.c b/drivers/nvdimm/label.c
index 1d28cd656536..1f5842509dbc 100644
--- a/drivers/nvdimm/label.c
+++ b/drivers/nvdimm/label.c
@@ -183,6 +183,13 @@ static int __nd_label_validate(struct nvdimm_drvdata *ndd)
__le64_to_cpu(nsindex[i]->otheroff));
continue;
}
+ if (__le64_to_cpu(nsindex[i]->labeloff)
+ != 2 * sizeof_namespace_index(ndd)) {
+ dev_dbg(dev, "nsindex%d labeloff: %#llx invalid\n",
+ i, (unsigned long long)
+ __le64_to_cpu(nsindex[i]->labeloff));
+ continue;
+ }
size = __le64_to_cpu(nsindex[i]->mysize);
if (size > sizeof_namespace_index(ndd)
_______________________________________________
Linux-nvdimm mailing list
Linux-nvdimm@lists.01.org
https://lists.01.org/mailman/listinfo/linux-nvdimm
next prev parent reply other threads:[~2018-10-10 23:38 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-10 23:36 [nvdimm PATCH 0/6] Label initialization time optimizations Alexander Duyck
2018-10-10 23:38 ` [nvdimm PATCH 1/6] libnvdimm, dimm: Maximize label transfer size Alexander Duyck
2018-10-10 23:38 ` Alexander Duyck [this message]
2018-10-10 23:38 ` [nvdimm PATCH 3/6] nvdimm: Clarify comment in sizeof_namespace_index Alexander Duyck
2018-10-10 23:39 ` [nvdimm PATCH 4/6] nvdimm: Remove empty if statement Alexander Duyck
2018-10-10 23:39 ` [nvdimm PATCH 5/6] nvdimm: Split label init out from the logic for getting config data Alexander Duyck
2018-10-10 23:39 ` [nvdimm PATCH 6/6] nvdimm: Use namespace index data to reduce number of label reads needed Alexander Duyck
2018-10-12 1:35 ` Dan Williams
2018-10-11 4:48 ` [nvdimm PATCH 0/6] Label initialization time optimizations Dan Williams
2018-10-12 15:36 ` Kani, Toshi
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=20181010233830.12228.1116.stgit@localhost.localdomain \
--to=alexander.h.duyck@linux.intel.com \
--cc=dan.j.williams@intel.com \
--cc=linux-nvdimm@lists.01.org \
--cc=zwisler@kernel.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).