commit 4b30c359ac5e24782a1c908e7ba392bec9b4ff34
Author: Greg Kroah-Hartman <gregkh@suse.de>
Date:   Sun Feb 10 22:06:32 2008 -0800

    Linux 2.6.23.16

commit a5ecc6655e2b6b2517001b6698b6a61ceb6ccd58
Author: Bastian Blank <bastian@waldi.eu.org>
Date:   Sun Feb 10 16:47:57 2008 +0200

    splice: fix user pointer access in get_iovec_page_array()
    
    patch 712a30e63c8066ed84385b12edbfb804f49cbc44 in mainline.
    
    Commit 8811930dc74a503415b35c4a79d14fb0b408a361 ("splice: missing user
    pointer access verification") added the proper access_ok() calls to
    copy_from_user_mmap_sem() which ensures we can copy the struct iovecs
    from userspace to the kernel.
    
    But we also must check whether we can access the actual memory region
    pointed to by the struct iovec to fix the access checks properly.
    
    Signed-off-by: Bastian Blank <waldi@debian.org>
    Acked-by: Oliver Pinter <oliver.pntr@gmail.com>
    Cc: Jens Axboe <jens.axboe@oracle.com>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>