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41 lines
1.5 KiB
Diff
41 lines
1.5 KiB
Diff
From a8bfc6888280ac70c9c13b1802c1e962522714a4 Mon Sep 17 00:00:00 2001
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From: Zhen Kong <zkong@codeaurora.org>
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Date: Tue, 16 Aug 2016 12:46:12 -0700
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Subject: msm: crypto: Fix integer over flow check in qcrypto 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 req->assoclen,
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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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CRs-fixed: 1050970
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Change-Id: I3782ea7ed2eaacdcad15b34e047a4699bf4f9e4f
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Signed-off-by: Zhen Kong <zkong@codeaurora.org>
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---
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drivers/crypto/msm/qcrypto.c | 6 +++---
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1 file changed, 3 insertions(+), 3 deletions(-)
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diff --git a/drivers/crypto/msm/qcrypto.c b/drivers/crypto/msm/qcrypto.c
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index a975575..79e5ae9 100644
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--- a/drivers/crypto/msm/qcrypto.c
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+++ b/drivers/crypto/msm/qcrypto.c
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@@ -2168,12 +2168,12 @@ static int _qcrypto_process_aead(struct crypto_engine *pengine,
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* include assoicated data, ciphering data stream,
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* generated MAC, and CCM padding.
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*/
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- if ((MAX_ALIGN_SIZE * 2 > ULONG_MAX - req->assoclen) ||
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+ if ((MAX_ALIGN_SIZE * 2 > UINT_MAX - req->assoclen) ||
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((MAX_ALIGN_SIZE * 2 + req->assoclen) >
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- ULONG_MAX - qreq.ivsize) ||
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+ UINT_MAX - qreq.ivsize) ||
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((MAX_ALIGN_SIZE * 2 + req->assoclen
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+ qreq.ivsize)
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- > ULONG_MAX - req->cryptlen)) {
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+ > UINT_MAX - req->cryptlen)) {
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pr_err("Integer overflow on 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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