Contained in this update:

- Fix race conditions in the CoW code
- Fix some incorrect input validation checks
- Avoid crashing fs by running out of space when freeing inodes
- Fix toctou race wrt whether or not an inode has an attr
- Fix build error on arm
- Fix page refcount corruption when readahead fails
- Don't corrupt userspace in the bmap ioctl
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=Co7t
-----END PGP SIGNATURE-----