It affects all out-of-order Intel processors released since 1995 with the exception of Itanium and pre-2013 Atoms. Curiosity lead me to start analyzing the code for Kernel Patch Protection on Windows 8. Update the kernel tree in the current.
Net if you get stuck. If (and only if) you are an applicant for Outreachy, then you should ask for help on #kernel-outreachy on irc. Additionally, we highly recommend that applicants have a stable internet connection, with no download caps. Communication over IRC can be difficult if your internet connection keeps dropping or has a big lag time, so you need a stable internet connection. Downloading the initial kernel will use over 5 GB of data, which will easily blow through a standard 3G capped plan. We recommend making sure you have cable internet, or an unlimited 3G plan.
You'll need to install, configure, and download some software to get started. You should follow the here. (Note, if you're running a native Linux install and you're used to another editor like emacs or nano, you can still use that editor, and you can skip this step. You may not be able to use gvim. Tip: Vim is a simple text editor that has a couple modes. It starts out in standard mode, and you can move the cursor down or up with the arrow keys (or the 'j' or 'k' keys), and move the cursor left or right with the arrow keys (or the 'h' and 'l' keys). You can go into "Insert mode" by typing 'i'.
Now you can change text. To get back into standard mode, type.
To write a file, get into standard mode, and type:w. If you want to learn more about vim, the is quite fun. First, we need to make sure to enable the C indentation module in our default text editor (vim). Turning on this module will ensure that lines automatically get indented to the right level as you're editing. It saves you from hitting a lot. You can turn on automatic indentation based on the file type. Most distributions compile vim so that 8 space tabs are the default. If you find they're not the default, you will need to add the following line to your. Next, we'll need to set up mutt to use vim as the default editor, instead of nano.
And chose /usr/bin/vim. Basic as the default editor. To be able to send Linux kernel patches, you'll need to be able to send email from the Linux VM image (or your computer that is natively running Linux). The VM image comes installed with esmtp, and if you were following the you should have that installed on your computer as well. Esmtp is a mail transport agent. It routes email to your mail server, such as gmail. To know what information to give esmtp, you will need to look up your mail server settings.
Apples iOS Kernel Patch Protection (KPP) Explained
You will also need to install an, and use it to respond to message on the outreachy-kernel mailing list. These instructions assume you're using mutt, but you may find a GUI mail client like Evolution to be easier to use. In gmail, go click the gear icon, go to "Settings", go to the tab "Forwarding POP/IMAP", and click "Enable IMAP", then click on "Save Changes".
Then click the "Configuration instructions" link at the very bottom of the page. Note the outgoing mail server information in "Step 2", and copy it into the.
Esmtprc file, as shown in the next section. If your gmail account uses two-step verification, then you will need to generate and use.
Kernel Patch Protection
Note: If you already have another mail transfer agent (MTA) installed, you do not need to install esmtp. Muttrc file "sendmail" line to be the path to your MTA. Mutt uses ssmtp by default, so if your MTA is ssmtp, you can leave that line out entirely. Next, set up the mail client, mutt, with some defaults, by creating a. Next, let's send a test email message with mutt. Say "no" to creating an inbox for now. Type 'm' to create a new message. Specify your own email address (or a secondary email) to send the test message to.
Set the Subject however you want to. Type a message in the body, and then save and quit. Hit 'y' to send the message, hit 'e' to edit the message again, or hit 'q' to abort sending the message.
Look in your email to double check you received a message. If you send the email to yourself, for some mail services like gmail, the message will not show up in your inbox, and you will have to look in your Sent Mail folder. This will cause the creation of files with names beginning. That can help you find the problem. First, you need to tell git what your name and email address is, so that it can be used in the authorship information in the git commit.
Openwall Linux kernel patch 24379-ow1
Make sure that the email you specify here is the same email you used to set up sending mail. The Linux kernel developers will not accept a patch where the "From" email differs from the "Signed-off-by" line, which is what will happen if these two emails do not match. Make sure you store your full, legal name in the 'name' line. By adding your Signed-off-by line to a patch, you are certifying that you have read and understood the.
Please read though that document before you send patches to the kernel. First, open a terminal, by clicking the black screen icon with the " >_" text in it.
Tip: You can exit out of a terminal tab or window by pressing d at any time. This is the recommended way of closing the terminal, since it won't kill any processes you have running in the background. Get used to exiting the terminal this way by opening and closing the terminal a couple times. This is the Linux kernel tree.
Applying Patches To The Linux Kernel
You can explore it by using the `ls` and `cd` commands. There's more to this directory than meets the eye! If you run ls -A, you'll see there's a hidden directory called. This contains all the meta information that git uses to track branches, remote repositories, and changes to files in the local directory. Git is a distributed revision control system, which means you can hack on your version of the code without having to coordinate with other developers. Think of your git checkout as a separate copy of the kernel respository.
Git includes support for branches.
Применение патчей к ядру Linux
Each branch can contain a completely different set of patches. Kernel developers typically use one branch per patchset. For example, you might have one branch that includes bug fixes, and another branch that contains commits for a new feature you're working on.
In this case, there is only one branch, called staging-testing. The star indicates that the "staging-testing" branch is the one you are currently on. In git speak, we say that you currently have the master branch "checked out". You can also use the git branch command to show branches on the staging remote repository.
The first remote repository that is used to create the git checkout is called "origin". For now, just remember that "origin" means Greg Kroah-Hartman's staging git repository. Here, you can see the staging remote has five branches: master, staging-linus, staging-next, staging-testing, and test. The staging-linus branch contains bug fix patches for the current kernel release candidate, and the staging-next branch contains patches for the next kernel release.
Your patches will all go into staging-testing (since they will be code clean up, not bug fixes), so you want to base all your branches on the staging-testing branch. Greg first applies patches to staging-testing.
They are moved to staging-next shortly thereafter. When you create your first application clean-up patches, you want to create them on top of the latest commit from the staging-testing tree. If your patch is out-of-date and doesn't apply to the latest tree, it may be rejected. The third word in that command is the name of the remote repository you are fetching from. In this case, it's origin, which is the remote repository we initially cloned from (the staging repository). That command will fetch the changes from the remote, but it won't actually change in files in the working copy (i.
The files in this directory).
How to apply kernel patches
You will see that your current working directory still points to the original commit. So where are the staging tree current changes? The answer is that git stores the changes in a special hidden directory called. Next, we need to update our branch to include the changes in the staging tree.
The safest way to do this is to "rebase" your branch. This means that if you have any commits on your branch, they will be placed on top of the staging tree commits. Sometimes you may have to edit your commits if there are conflicts, but you should ask your mentor for help with this. If you run `git log` to show your staging branch history and then `git log origin/staging-testing` to show the staging-testing branch history, you should see that they have exactly the same commits. The next step is to create a configuration file, compile the new kernel, and install it. The first thing to know is that the Linux kernel is completely configurable.
Each driver can be separately configured to be installed or not. If you build the driver into the main kernel file, it will be loaded at boot time. The downside is that the kernel will have to load more code at boot for drivers that may not even correspond to hardware on the system. To avoid this, kernel developers often compile drivers as "modules". Ko driver file that is loaded when the kernel detects hardware that matches the driver. For example, you could configure your wifi driver as a module, and the kernel will load it when it detects the wifi card.
The Linux kernel make system uses a special file called. Config that stores what drivers are compiled in, or compiled as modules. Most Linux distributions store the. Amd64 lost+found vmlinuz-4.