commit
70f259a3f4276b71db365b1d6ff1eab805ea6ec3 upstream.
When h5_close() gets called, the memory allocated for the hu gets
freed only if hu->serdev doesn't exist. This leads to a memory leak.
So when h5_close() is requested, close the serdev device instance and
free the memory allocated to the hu entirely instead.
Fixes: https://syzkaller.appspot.com/bug?extid=
6ce141c55b2f7aafd1c4
Reported-by: syzbot+6ce141c55b2f7aafd1c4@syzkaller.appspotmail.com
Tested-by: syzbot+6ce141c55b2f7aafd1c4@syzkaller.appspotmail.com
Signed-off-by: Anant Thazhemadam <anant.thazhemadam@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
if (h5->vnd && h5->vnd->close)
h5->vnd->close(h5);
- if (!hu->serdev)
- kfree(h5);
+ if (hu->serdev)
+ serdev_device_close(hu->serdev);
+
+ kfree_skb(h5->rx_skb);
+ kfree(h5);
+ h5 = NULL;
return 0;
}