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09fc68dc66
* might_fault() is better checked in caller (and e.g. fault-in + kmap_atomic codepath also needs might_fault() coverage) * we have already done object size checks * we have *NOT* done access_ok() recently enough; we rely upon the iovec array having passed sanity checks back when it had been created and not nothing having buggered it since. However, that's very much non-local, so we'd better recheck that. So the thing we want does not match anything in uaccess - we need access_ok + kasan checks + raw copy without any zeroing. Just define such helpers and use them here. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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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.