From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- security/nss/fuzz/mpi_div_target.cc | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 security/nss/fuzz/mpi_div_target.cc (limited to 'security/nss/fuzz/mpi_div_target.cc') diff --git a/security/nss/fuzz/mpi_div_target.cc b/security/nss/fuzz/mpi_div_target.cc new file mode 100644 index 0000000000..08c714ee68 --- /dev/null +++ b/security/nss/fuzz/mpi_div_target.cc @@ -0,0 +1,36 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * This target fuzzes NSS mpi against openssl bignum. + * It therefore requires openssl to be installed. + */ + +#include "mpi_helper.h" + +extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { + // We require at least size 3 to get two integers from Data. + if (size < 3) { + return 0; + } + INIT_FOUR_NUMBERS + + // We can't divide by 0. + if (mp_cmp_z(&b) == 0) { + CLEANUP_AND_RETURN + } + + // Compare with OpenSSL division + assert(mp_div(&a, &b, &c, &r) == MP_OKAY); + BN_div(C, R, A, B, ctx); + check_equal(C, &c, max_size); + check_equal(R, &r, max_size); + + // Check c * b + r == a + assert(mp_mul(&c, &b, &c) == MP_OKAY); + assert(mp_add(&c, &r, &c) == MP_OKAY); + assert(mp_cmp(&c, &a) == 0); + + CLEANUP_AND_RETURN +} -- cgit v1.2.3