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authorJens Axboe <jens.axboe@oracle.com>2008-02-08 08:49:14 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-08 09:25:01 -0800
commit8811930dc74a503415b35c4a79d14fb0b408a361 (patch)
tree464a99a2be2f87b8e019fea231592ddf3ec38de7 /Documentation
parent66191dc622f5ff0a541524c4e96fdacfacfda206 (diff)
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splice: missing user pointer access verification
vmsplice_to_user() must always check the user pointer and length with access_ok() before copying. Likewise, for the slow path of copy_from_user_mmap_sem() we need to check that we may read from the user region. Signed-off-by: Jens Axboe <jens.axboe@oracle.com> Cc: Wojciech Purczynski <cliph@research.coseinc.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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