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Dennis Dalessandro authored
Guard against a potential buffer overrun. The size to read from the user is passed in, and due to the padding that needs to be taken into account, as well as the place holder for the ICRC it is possible to overflow the 32bit value which would cause more data to be copied from user space than is allocated in the buffer. Cc: <stable@vger.kernel.org> Reported-by: Nico Golde <nico@ngolde.de> Reported-by: Fabian Yamaguchi <fabs@goesec.de> Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
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