1. 20 May, 2014 3 commits
  2. 14 May, 2014 1 commit
    • Linus Torvalds's avatar
      x86-64, modify_ldt: Make support for 16-bit segments a runtime option · fa81511b
      Linus Torvalds authored
      Checkin:
      
      b3b42ac2 x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels
      
      disabled 16-bit segments on 64-bit kernels due to an information
      leak.  However, it does seem that people are genuinely using Wine to
      run old 16-bit Windows programs on Linux.
      
      A proper fix for this ("espfix64") is coming in the upcoming merge
      window, but as a temporary fix, create a sysctl to allow the
      administrator to re-enable support for 16-bit segments.
      
      It adds a "/proc/sys/abi/ldt16" sysctl that defaults to zero (off). If
      you hit this issue and care about your old Windows program more than
      you care about a kernel stack address information leak, you can do
      
         echo 1 > /proc/sys/abi/ldt16
      
      as root (add it to your startup scripts), and you should be ok.
      
      The sysctl table is only added if you have COMPAT support enabled on
      x86-64, but I assume anybody who runs old windows binaries very much
      does that ;)
      Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
      Link: http://lkml.kernel.org/r/CA%2B55aFw9BPoD10U1LfHbOMpHWZkvJTkMcfCs9s3urPr1YyWBxw@mail.gmail.com
      Cc: <stable@vger.kernel.org>
      fa81511b
  3. 13 May, 2014 11 commits
  4. 12 May, 2014 6 commits
  5. 11 May, 2014 11 commits
  6. 09 May, 2014 7 commits
  7. 08 May, 2014 1 commit
    • Linus Torvalds's avatar
      Merge tag 'trace-fixes-v3.15-rc4-v2' of... · f322e262
      Linus Torvalds authored
      Merge tag 'trace-fixes-v3.15-rc4-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
      
      Pull tracing fixes from Steven Rostedt:
       "This contains two fixes.
      
        The first is a long standing bug that causes bogus data to show up in
        the refcnt field of the module_refcnt tracepoint.  It was introduced
        by a merge conflict resolution back in 2.6.35-rc days.
      
        The result should be 'refcnt = incs - decs', but instead it did
        'refcnt = incs + decs'.
      
        The second fix is to a bug that was introduced in this merge window
        that allowed for a tracepoint funcs pointer to be used after it was
        freed.  Moving the location of where the probes are released solved
        the problem"
      
      * tag 'trace-fixes-v3.15-rc4-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
        tracepoint: Fix use of tracepoint funcs after rcu free
        trace: module: Maintain a valid user count
      f322e262