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From: Konstantin Belousov <kib@FreeBSD.org>
Date: Sat, 5 Feb 2011 15:10:27 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: HEAD
Subject: cvs commit: src/sys/amd64/amd64 machdep.c src/sys/amd64/ia32
 ia32_signal.c src/sys/i386/i386 machdep.c src/sys/kern
 kern_context.c
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kib         2011-02-05 15:10:27 UTC

  FreeBSD src repository

  Modified files:
    sys/amd64/amd64      machdep.c 
    sys/amd64/ia32       ia32_signal.c 
    sys/i386/i386        machdep.c 
    sys/kern             kern_context.c 
  Log:
  SVN rev 218327 on 2011-02-05 15:10:27Z by kib
  
  Clear the padding when returning context to the usermode, for
  MI ucontext_t and x86 MD parts.
  Kernel allocates the structures on the stack, and not clearing
  reserved fields and paddings causes leakage.
  
  Noted and discussed with:       bde
  MFC after:      2 weeks
  
  Revision  Changes    Path
  1.741     +5 -0      src/sys/amd64/amd64/machdep.c
  1.37      +11 -0     src/sys/amd64/ia32/ia32_signal.c
  1.721     +17 -1     src/sys/i386/i386/machdep.c
  1.12      +2 -0      src/sys/kern/kern_context.c