Changes between Version 2 and Version 3 of PlatformNotes


Ignore:
Timestamp:
Nov 13, 2008, 11:29:05 PM (11 years ago)
Author:
rme
Comment:

--

Legend:

Unmodified
Added
Removed
Modified
  • PlatformNotes

    v2 v3  
    5353the next and subsequent reboots.)
    5454
    55 The 4K value mentioned above makes it impossible to dereference a NULL pointer,
    56 but still allows applications to use low-memory addresses.
     55The 4K value mentioned above will protect against certain (yet-to-be-discovered) NULL pointer deference bugs in
     56the kernel, but will still allow applications to use low-memory addresses.
    5757
    5858On some newer systems (Ubuntu 8.10, for instance), the 4K value doesn't work, although
     
    6060# echo 0 >/proc/sys/vm/mmap_min_addr
    6161}}}
    62 will permit the lisp to run.  (Setting this value to 0 doesn't necessarily create an exploitable condition.
    63 It might make it possible or easier to exploit yet-to-be-discovered bugs in the Linux kernel.)
     62will permit the lisp to run.  (Setting this value to 0 doesn't necessarily make your system insecure.
     63It might, however, make it possible or easier to exploit yet-to-be-discovered bugs in the Linux kernel.)
    6464
    6565On the x86 platform, there's no architectural advantage to using 16-bit