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A build failure has been reported with the following details:
In file included from include/linux/string.h:390,
from include/linux/bitmap.h:13,
from include/linux/cpumask.h:12,
from include/linux/smp.h:13,
from include/linux/lockdep.h:14,
from include/linux/spinlock.h:63,
from include/linux/wait.h:9,
from include/linux/wait_bit.h:8,
from include/linux/fs.h:6,
from kernel/auditsc.c:37:
In function 'sized_strscpy',
inlined from '__audit_ptrace' at kernel/auditsc.c:2732:2:
>> include/linux/fortify-string.h:293:17:
error: call to '__write_overflow' declared with attribute error:
detected write beyond size of object (1st parameter)
293 | __write_overflow();
| ^~~~~~~~~~~~~~~~~~
In function 'sized_strscpy',
inlined from 'audit_signal_info_syscall' at kernel/auditsc.c:2759:3:
>> include/linux/fortify-string.h:293:17:
error: call to '__write_overflow' declared with attribute error:
detected write beyond size of object (1st parameter)
293 | __write_overflow();
| ^~~~~~~~~~~~~~~~~~
The issue appears to be a GCC bug, though the root cause remains
unclear at this time. For now, let's implement a workaround.
A bug report has also been filed with GCC [0].
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117912 [0]
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202410171420.1V00ICVG-lkp@intel.com/
Reported-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Closes: https://lore.kernel.org/all/20241128182435.57a1ea6f@gandalf.local.home/
Reported-by: Zhuo, Qiuxu <qiuxu.zhuo@intel.com>
Closes: https://lore.kernel.org/all/CY8PR11MB71348E568DBDA576F17DAFF389362@CY8PR11MB7134.namprd11.prod.outlook.com/
Originally-by: Kees Cook <kees@kernel.org>
Link: https://lore.kernel.org/linux-hardening/202410171059.C2C395030@keescook/
Signed-off-by: Yafang shao <laoar.shao@gmail.com>
Tested-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Tested-by: Yafang Shao <laoar.shao@gmail.com>
[PM: subject tweak, description line wrapping]
Signed-off-by: Paul Moore <paul@paul-moore.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 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.