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Commit e2fe85c2 authored by Dmitry Kasatkin's avatar Dmitry Kasatkin Committed by James Morris
Browse files

lib/mpi: checks for zero divisor length 



Divisor length should not be 0.

Signed-off-by: default avatarDmitry Kasatkin <dmitry.kasatkin@intel.com>
Reviewed-by: default avatarTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: default avatarJames Morris <jmorris@namei.org>
parent e87c5e35

lib/mpi/mpi-div.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -149,6 +149,9 @@ int mpi_tdiv_qr(MPI quot, MPI rem, MPI num, MPI den) 
	mpi_ptr_t marker[5];

	mpi_ptr_t marker[5];

	int markidx = 0;

	int markidx = 0;





	if (!dsize)

		return -EINVAL;



	memset(marker, 0, sizeof(marker));

	memset(marker, 0, sizeof(marker));





	/* Ensure space is enough for quotient and remainder.

	/* Ensure space is enough for quotient and remainder.