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691115c351
On 32-bit systems, the buffer allocated by kernel_read_file() is too small if the file size is > SIZE_MAX, due to truncation to size_t. Fortunately, since the 'count' argument to kernel_read() is also truncated to size_t, only the allocated space is filled; then, -EIO is returned since 'pos != i_size' after the read loop. But this is not obvious and seems incidental. We should be more explicit about this case. So, fail early if i_size > SIZE_MAX. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Mimi Zohar <zohar@linux.ibm.com> |
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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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.