dbc834e5db
These lengths come from xdr_stream_decode_u32() and so we should be a bit careful with them. Use size_add() and struct_size() to avoid integer overflows. Saving size_add()/struct_size() results to a u32 is unsafe because it truncates away the high bits. Also generally storing sizes in longs is safer. Most systems these days use 64 bit CPUs. It's harder for an addition to overflow 64 bits than it is to overflow 32 bits. Also functions like vmalloc() can successfully allocate UINT_MAX bytes, but nothing can allocate ULONG_MAX bytes. Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
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 reStructuredText 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.