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From: Konstantin Belousov <kib@FreeBSD.org>
Date: Wed, 9 Sep 2009 20:59:01 +0000 (UTC)
To: cvs-src-old@freebsd.org
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Subject: cvs commit: src/sys/compat/freebsd32 freebsd32_misc.c
 src/sys/compat/linux
 linux_misc.c src/sys/kern sys_generic.c src/sys/sys syscallsubr.h
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kib         2009-09-09 20:59:01 UTC

  FreeBSD src repository

  Modified files:
    sys/compat/freebsd32 freebsd32_misc.c 
    sys/compat/linux     linux_misc.c 
    sys/kern             sys_generic.c 
    sys/sys              syscallsubr.h 
  Log:
  SVN rev 197049 on 2009-09-09 20:59:01Z by kib
  
  kern_select(9) copies fd_set in and out of userspace in quantities of
  longs. Since 32bit processes longs are 4 bytes, 64bit kernel may copy in
  or out 4 bytes more then the process expected.
  
  Calculate the amount of bytes to copy taking into account size of fd_set
  for the current process ABI.
  
  Diagnosed and tested by:        Peter Jeremy <peterjeremy acm org>
  Reviewed by:    jhb
  MFC after:      1 week
  
  Revision  Changes    Path
  1.94      +2 -1      src/sys/compat/freebsd32/freebsd32_misc.c
  1.241     +1 -1      src/sys/compat/linux/linux_misc.c
  1.177     +9 -5      src/sys/kern/sys_generic.c
  1.58      +1 -1      src/sys/sys/syscallsubr.h