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60 lines
2.3 KiB
Diff
60 lines
2.3 KiB
Diff
From 5f69ccf3b011c1d14a1b1b00dbaacf74307c9132 Mon Sep 17 00:00:00 2001
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From: Zhen Kong <zkong@codeaurora.org>
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Date: Fri, 29 Jul 2016 15:32:31 -0700
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Subject: msm: crypto: Fix integer over flow check in qcedev driver
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Integer overflow check always fails when ULONG_MAX is used,
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as ULONG_MAX is 2^64-1, while req->data[i].len and total
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are uint32_t. Make change to use U32_MAX instead of
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ULONG_MAX.
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CRs-fixed: 1046507
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Change-Id: Iccf9c32400ecc7ffc0afae16f58c38e5d78a5b64
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Signed-off-by: Zhen Kong <zkong@codeaurora.org>
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---
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drivers/crypto/msm/qcedev.c | 8 ++++----
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1 file changed, 4 insertions(+), 4 deletions(-)
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diff --git a/drivers/crypto/msm/qcedev.c b/drivers/crypto/msm/qcedev.c
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index 51f5069..e63f061 100644
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--- a/drivers/crypto/msm/qcedev.c
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+++ b/drivers/crypto/msm/qcedev.c
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@@ -1,6 +1,6 @@
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/* Qualcomm CE device driver.
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*
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- * Copyright (c) 2010-2015, The Linux Foundation. All rights reserved.
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+ * Copyright (c) 2010-2016, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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@@ -1543,7 +1543,7 @@ static int qcedev_check_cipher_params(struct qcedev_cipher_op_req *req,
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}
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/* Check for sum of all dst length is equal to data_len */
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for (i = 0; i < req->entries; i++) {
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- if (req->vbuf.dst[i].len >= ULONG_MAX - total) {
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+ if (req->vbuf.dst[i].len >= U32_MAX - total) {
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pr_err("%s: Integer overflow on total req dst vbuf length\n",
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__func__);
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goto error;
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@@ -1557,7 +1557,7 @@ static int qcedev_check_cipher_params(struct qcedev_cipher_op_req *req,
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}
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/* Check for sum of all src length is equal to data_len */
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for (i = 0, total = 0; i < req->entries; i++) {
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- if (req->vbuf.src[i].len > ULONG_MAX - total) {
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+ if (req->vbuf.src[i].len > U32_MAX - total) {
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pr_err("%s: Integer overflow on total req src vbuf length\n",
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__func__);
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goto error;
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@@ -1619,7 +1619,7 @@ static int qcedev_check_sha_params(struct qcedev_sha_op_req *req,
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/* Check for sum of all src length is equal to data_len */
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for (i = 0, total = 0; i < req->entries; i++) {
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- if (req->data[i].len > ULONG_MAX - total) {
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+ if (req->data[i].len > U32_MAX - total) {
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pr_err("%s: Integer overflow on total req buf length\n",
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__func__);
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goto sha_error;
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--
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cgit v1.1
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