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23a22e831e
The use of array_size() leads gcc to assume the memcpy() can have a larger
limit than actually possible, which triggers a string fortification warning:
In file included from include/linux/string.h:296,
from include/linux/bitmap.h:12,
from include/linux/cpumask.h:12,
from include/linux/sched.h:16,
from include/linux/delay.h:23,
from include/linux/iopoll.h:12,
from drivers/crypto/intel/qat/qat_common/adf_gen4_hw_data.c:3:
In function 'fortify_memcpy_chk',
inlined from 'adf_gen4_init_thd2arb_map' at drivers/crypto/intel/qat/qat_common/adf_gen4_hw_data.c:401:3:
include/linux/fortify-string.h:579:4: error: call to '__write_overflow_field' declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror=attribute-warning]
579 | __write_overflow_field(p_size_field, size);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/fortify-string.h:588:4: error: call to '__read_overflow2_field' declared with attribute warning: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Werror=attribute-warning]
588 | __read_overflow2_field(q_size_field, size);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Add an explicit range check to avoid this.
Fixes:
|
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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.
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.