2.2.20-rc2:

  o fixed mm/memory.c SMP bugs

  o fixed fs/binfmt_aout.c compilation warnings


2.2.20-rc1:

  o fixed fs/binfmt_aout.c compilation error

  o knox.c renamed to chknox.c

  o added sysctl and EFL/a.out flag to control trampoline call emulation

  o code clean-ups

  o README updated


2.2.20-pre6:

  o added sysctl interface


2.2.20-pre5:

  o FIX: serious bugs related to _PAGE_ACCESSED pte flag for code segment pages

  o FIX: copy_exec_pages() didn't mark code segment pages as old

  o VM_EXEC flag is tested in handle_pte_fault() instead of do_exec_page()

  o +x flag (PF_DISABLEKNOX) no longer modifies CS selector

  o executable-only pages (--X) can not be read

  o test.c: added new test to check --X (above) protection

  o test.c: renamed to demo.c

  o knox.c: +x flag displayed at 5th columnt

  o knox.c: more complex flag operators


2.2.20-pre4:

  o Update to 2.2.20 kernel and Openwall-2.2.20ow1


2.2.19-pre3:

  o FIX: page table cache flushing was broken

  o FIX: invalid use of offset member of struct page

  o FIX: unlock_kernel() calls fixed in mm/memory.c

  o added +m flag

  o removed unused get_modrm() function

  o test.c: execl() changed to execlp()


2.2.19-pre2:

  o FIX: copy-on-write bug of non-executable pages that were executable

  o FIX: trampoline emulation works since now

  o FIX: +h and +s flags do not require +w flag on binaries any more

  o FIX: shared segments have RW- by default, +w works on them

  o fork system call: page table copying optimized

  o struct page made smaller

  o do_exec_page slighty optimized

  o page exec fault messages cleaned up

  o TASK_SIZE definition cleaned up

  o noexectest.c tool cleaned up, added new tests, renamed to test.c

  o CONFIG_SECURE_* options renamed to CONFIG_KNOX_*


2.2.19-pre1:

  o Initial release