This is a note to let you know that I've just added the patch titled
[media] xc2028: unlock on error in xc2028_set_config()
to the 4.4-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:
xc2028-unlock-on-error-in-xc2028_set_config.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 210bd104c6acd31c3c6b8b075b3f12d4a9f6b60d Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Date: Wed, 3 Feb 2016 13:34:00 -0200
Subject: [media] xc2028: unlock on error in xc2028_set_config()
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
commit 210bd104c6acd31c3c6b8b075b3f12d4a9f6b60d upstream.
We have to unlock before returning -ENOMEM.
Fixes: 8dfbcc4351a0 ('[media] xc2028: avoid use after free')
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/media/tuners/tuner-xc2028.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
--- a/drivers/media/tuners/tuner-xc2028.c
+++ b/drivers/media/tuners/tuner-xc2028.c
@@ -1407,8 +1407,10 @@ static int xc2028_set_config(struct dvb_
memcpy(&priv->ctrl, p, sizeof(priv->ctrl));
if (p->fname) {
priv->ctrl.fname = kstrdup(p->fname, GFP_KERNEL);
- if (priv->ctrl.fname == NULL)
- return -ENOMEM;
+ if (priv->ctrl.fname == NULL) {
+ rc = -ENOMEM;
+ goto unlock;
+ }
}
/*
@@ -1440,6 +1442,7 @@ static int xc2028_set_config(struct dvb_
} else
priv->state = XC2028_WAITING_FIRMWARE;
}
+unlock:
mutex_unlock(&priv->lock);
return rc;
Patches currently in stable-queue which might be from dan.carpenter@xxxxxxxxxx are
queue-4.4/xc2028-unlock-on-error-in-xc2028_set_config.patch