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The standard C string APIs were not designed to have a failure mode; they were expected to always succeed without memory safety issues. Normally, CONFIG_FORTIFY_SOURCE will use fortify_panic() to stop processing, as truncating a read or write may provide an even worse system state. However, this creates a problem for testing under things like KUnit, which needs a way to survive failures. When building with CONFIG_KUNIT, provide a failure path for all users of fortify_panic, and track whether the failure was a read overflow or a write overflow, for KUnit tests to examine. Inspired by similar logic in the slab tests. Signed-off-by: Kees Cook <keescook@chromium.org> |
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| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
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| rust | ||
| samples | ||
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| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
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| Kbuild | ||
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| Makefile | ||
| 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.