From: <gregkh@linuxfoundation.org>
To: arnd@arndb.de, alexander.levin@verizon.com,
gregkh@linuxfoundation.org, kronos.it@gmail.com,
linux@roeck-us.net
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "hwmon: (asus_atk0110) fix uninitialized data access" has been added to the 3.18-stable tree
Date: Thu, 21 Dec 2017 10:55:34 +0100 [thread overview]
Message-ID: <151385013410846@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
hwmon: (asus_atk0110) fix uninitialized data access
to the 3.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
hwmon-asus_atk0110-fix-uninitialized-data-access.patch
and it can be found in the queue-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From foo@baz Thu Dec 21 10:55:04 CET 2017
From: Arnd Bergmann <arnd@arndb.de>
Date: Thu, 23 Mar 2017 16:03:11 +0100
Subject: hwmon: (asus_atk0110) fix uninitialized data access
From: Arnd Bergmann <arnd@arndb.de>
[ Upstream commit a2125d02443e9a4e68bcfd9f8004fa23239e8329 ]
The latest gcc-7 snapshot adds a warning to point out that when
atk_read_value_old or atk_read_value_new fails, we copy
uninitialized data into sensor->cached_value:
drivers/hwmon/asus_atk0110.c: In function 'atk_input_show':
drivers/hwmon/asus_atk0110.c:651:26: error: 'value' may be used uninitialized in this function [-Werror=maybe-uninitialized]
Adding an error check avoids this. All versions of the driver
are affected.
Fixes: 2c03d07ad54d ("hwmon: Add Asus ATK0110 support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Luca Tettamanti <kronos.it@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/hwmon/asus_atk0110.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/hwmon/asus_atk0110.c
+++ b/drivers/hwmon/asus_atk0110.c
@@ -646,6 +646,9 @@ static int atk_read_value(struct atk_sen
else
err = atk_read_value_new(sensor, value);
+ if (err)
+ return err;
+
sensor->is_valid = true;
sensor->last_updated = jiffies;
sensor->cached_value = *value;
Patches currently in stable-queue which might be from arnd@arndb.de are
queue-3.18/hwmon-asus_atk0110-fix-uninitialized-data-access.patch
queue-3.18/isdn-kcapi-avoid-uninitialized-data.patch
reply other threads:[~2017-12-21 9:56 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=151385013410846@kroah.com \
--to=gregkh@linuxfoundation.org \
--cc=alexander.levin@verizon.com \
--cc=arnd@arndb.de \
--cc=kronos.it@gmail.com \
--cc=linux@roeck-us.net \
--cc=stable-commits@vger.kernel.org \
--cc=stable@vger.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).