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6c3a9c9ae0
Move the EFI mixed mode return trampoline RET into .rodata, so it is normally mapped without executable permissions. And given that this snippet of code is really the only kernel code that we ever execute via this 1:1 mapping, let's unmap the 1:1 mapping of the kernel .text, and only map the page that covers the return trampoline with executable permissions. Note that the remainder of .rodata needs to remain mapped into the 1:1 mapping with RO/NX permissions, as literal GUIDs and strings may be passed to the variable routines. Acked-by: Borislav Petkov <bp@suse.de> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> |
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| certs | ||
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| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
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| mm | ||
| net | ||
| samples | ||
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| security | ||
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| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
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| .gitignore | ||
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.