Commit 22152d68 authored by Dr. Stephen Henson's avatar Dr. Stephen Henson
Browse files

PR: 2540 

Submitted by: emmanuel.azencot@bull.net
Reviewed by: steve

Prevent infinite loop in BN_GF2m_mod_inv().
parent 102bcbce

crypto/bn/bn_gf2m.c

+1 −0
Original line number Diff line number Diff line
@@ -607,6 +607,7 @@ int BN_GF2m_mod_inv(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx) 
		{

		while (!BN_is_odd(u))

			{

			if (BN_is_zero(u)) goto err;

			if (!BN_rshift1(u, u)) goto err;

			if (BN_is_odd(b))

				{