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To verify that a xattr entry is not pointing to the wrong xattr inode, we currently check that the target inode has EXT4_EA_INODE_FL flag set and also the entry size matches the target inode size. For stronger validation, also incorporate crc32c hash of the value into the e_hash field. This is done regardless of whether the entry lives in the inode body or external attribute block. Signed-off-by: Tahsin Erdogan <tahsin@google.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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.