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005b618770
The nreaders and loops variables are exposed as module parameters, which,
in certain combinations, can lead to multiplication overflow.
Besides, loops parameter is defined as long, while through the code is
used as int, which can cause truncation on 64-bit kernels and possible
zeroes where they shouldn't appear.
Since code uses result of multiplication as int anyway, it only makes sense
to replace loops with int. Multiplication overflow check is also added
due to possible multiplication between two very big numbers.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes:
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| fs | ||
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| ipc | ||
| kernel | ||
| lib | ||
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| .clang-format | ||
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| .editorconfig | ||
| .get_maintainer.ignore | ||
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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 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.