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43 lines
1.5 KiB
Diff
43 lines
1.5 KiB
Diff
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From 8f8066581a8e575a7d57d27f36c4db63f91ca48f Mon Sep 17 00:00:00 2001
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From: Zhen Kong <zkong@codeaurora.org>
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Date: Mon, 24 Oct 2016 13:52:04 -0700
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Subject: msm: crypto: Fix integer over flow check in qce driver
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Integer overflow check is invalid when ULONG_MAX is used,
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as ULONG_MAX has typeof 'unsigned long', while areq->assoclen,
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q_req->crytlen, and qreq.ivsize are 'unsigned int'. Make change
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to use UINT_MAX instead of ULONG_MAX.
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Change-Id: If2bb1900c07af1ea162da362c913d4880b0bc755
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Signed-off-by: Zhen Kong <zkong@codeaurora.org>
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---
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drivers/crypto/msm/qce.c | 6 +++---
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1 file changed, 3 insertions(+), 3 deletions(-)
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diff --git a/drivers/crypto/msm/qce.c b/drivers/crypto/msm/qce.c
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index 7ddbb19..4cf95b9 100644
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--- a/drivers/crypto/msm/qce.c
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+++ b/drivers/crypto/msm/qce.c
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@@ -1,6 +1,6 @@
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/* Qualcomm Crypto Engine 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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@@ -1962,8 +1962,8 @@ int qce_aead_req(void *handle, struct qce_req *q_req)
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else
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q_req->cryptlen = areq->cryptlen - authsize;
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- if ((q_req->cryptlen > ULONG_MAX - ivsize) ||
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- (q_req->cryptlen + ivsize > ULONG_MAX - areq->assoclen)) {
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+ if ((q_req->cryptlen > UINT_MAX - ivsize) ||
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+ (q_req->cryptlen + ivsize > UINT_MAX - areq->assoclen)) {
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pr_err("Integer overflow on total aead req length.\n");
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return -EINVAL;
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}
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--
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cgit v1.1
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