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c0f3ea1589
Not only is it annoying to have one single flag for all pointers, as if that was a global choice and all kernel pointers are the same, but %pK can't get the 'access' vs 'open' time check right anyway. So make the /proc/kallsyms pointer value code use logic specific to that particular file. We do continue to honor kptr_restrict, but the default (which is unrestricted) is changed to instead take expected users into account, and restrict access by default. Right now the only actual expected user is kernel profiling, which has a separate sysctl flag for kernel profile access. There may be others. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.