From: Dan Carpenter <dan.carpenter@oracle.com>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Henrik Rydberg <rydberg@bitmath.org>,
Dudley Du <dudl@cypress.com>, Jingoo Han <jg1.han@samsung.com>,
linux-input@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] Input: cyapa - off by on in cyapa_update_fw_store()
Date: Thu, 22 Jan 2015 10:48:01 +0300 [thread overview]
Message-ID: <20150122074801.GA11491@mwanda> (raw)
If "(count == NAME_MAX)" then we could end up putting the NUL terminator
one space beyond the end of the fw_name[] array.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c
index 64c6128..58f4f6f 100644
--- a/drivers/input/mouse/cyapa.c
+++ b/drivers/input/mouse/cyapa.c
@@ -1013,7 +1013,7 @@ static ssize_t cyapa_update_fw_store(struct device *dev,
char fw_name[NAME_MAX];
int ret, error;
- if (count > NAME_MAX) {
+ if (count >= NAME_MAX) {
dev_err(dev, "File name too long\n");
return -EINVAL;
}
next reply other threads:[~2015-01-22 7:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-22 7:48 Dan Carpenter [this message]
2015-01-22 16:21 ` [patch] Input: cyapa - off by on in cyapa_update_fw_store() Dmitry Torokhov
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