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From: Xin LI <delphij@FreeBSD.org>
Date: Fri, 12 Nov 2010 01:45:29 +0000 (UTC)
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X-FreeBSD-CVS-Branch: RELENG_8
Subject: cvs commit: src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs
	zfs_ioctl.c
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delphij     2010-11-12 01:45:29 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_8)
    sys/cddl/contrib/opensolaris/uts/common/fs/zfs zfs_ioctl.c 
  Log:
  SVN rev 215155 on 2010-11-12 01:45:29Z by delphij
  
  MFC r214854:
  
  Validate whether the zfs_cmd_t submitted from userland is not smaller than
  what we have.  Without the check the kernel could accessing memory that
  does not belong to the request struct.
  
  Note that we do not test if the struct equals in size at this time, which
  may faciliate forward compatibility with newer binaries.
  
  Revision   Changes    Path
  1.12.2.10  +8 -0      src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c