• Linus Torvalds's avatar
    Merge tag 'leaks-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tobin/leaks · 299f89d5
    Linus Torvalds authored
    Pull leaking-addresses updates from Tobin Harding:
     "This set represents improvements to the scripts/leaking_addresses.pl
      script.
    
      The major improvement is that with this set applied the script
      actually runs in a reasonable amount of time (less than a minute on a
      standard stock Ubuntu user desktop). Also, we have a second maintainer
      now and a tree hosted on kernel.org
    
      We do a few code clean ups. We fix the command help output. Handling
      of the vsyscall address range is fixed to check the whole range
      instead of just the start/end addresses. We add support for 5 page
      table levels (suggested on LKML). We use a system command to get the
      machine architecture instead of using Perl. Calling this command for
      every regex comparison is what previously choked the script, caching
      the result of this call gave the major speed improvement. We add
      support for scanning 32-bit kernels using the user/kernel memory
      split. Path skipping code refactored and simplified (meaning easier
      script configuration). We remove version numbering. We add a variable
      name to improve readability of a regex and finally we check filenames
      for leaking addresses.
    
      Currently script scans /proc/PID for all PID. With this set applied we
      only scan for PID==1. It was observed that on an idle system files
      under /proc/PID are predominantly the same for all processes. Also it
      was noted that the script does not scan _all_ the kernel since it only
      scans active processes. Scanning only for PID==1 makes explicit the
      inherent flaw in the script that the scan is only partial and also
      speeds things up"
    
    * tag 'leaks-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tobin/leaks:
      MAINTAINERS: Update LEAKING_ADDRESSES
      leaking_addresses: check if file name contains address
      leaking_addresses: explicitly name variable used in regex
      leaking_addresses: remove version number
      leaking_addresses: skip '/proc/1/syscall'
      leaking_addresses: skip all /proc/PID except /proc/1
      leaking_addresses: cache architecture name
      leaking_addresses: simplify path skipping
      leaking_addresses: do not parse binary files
      leaking_addresses: add 32-bit support
      leaking_addresses: add is_arch() wrapper subroutine
      leaking_addresses: use system command to get arch
      leaking_addresses: add support for 5 page table levels
      leaking_addresses: add support for kernel config file
      leaking_addresses: add range check for vsyscall memory
      leaking_addresses: indent dependant options
      leaking_addresses: remove command examples
      leaking_addresses: remove mention of kptr_restrict
      leaking_addresses: fix typo function not called
    299f89d5
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