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125ed24a4a
The section index is always positive, so the argument, secindex, should be unsigned. Also, inserted the array range check. If sym->st_shndx is a special section index (between SHN_LORESERVE and SHN_HIRESERVE), there is no corresponding section header. For example, if a symbol specifies an absolute value, sym->st_shndx is SHN_ABS (=0xfff1). The current users do not cause the out-of-range access of info->sechddrs[], but it is better to avoid such a pitfall. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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.