mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
synced 2024-12-11 08:54:28 -05:00
41 lines
1.5 KiB
Diff
41 lines
1.5 KiB
Diff
|
From cc95d644ee8a043f2883d65dda20e16f95041de3 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Zhen Kong <zkong@codeaurora.org>
|
||
|
|
Date: Tue, 16 Aug 2016 12:46:12 -0700
|
||
|
|
Subject: msm: crypto: Fix integer over flow check in qcrypto driver
|
||
|
|
|
||
|
|
Integer overflow check is invalid when ULONG_MAX is used,
|
||
|
|
as ULONG_MAX has typeof 'unsigned long', while req->assoclen,
|
||
|
|
req->crytlen, and qreq.ivsize are 'unsigned int'. Make change
|
||
|
|
to use UINT_MAX instead of ULONG_MAX.
|
||
|
|
|
||
|
|
CRs-fixed: 1050970
|
||
|
|
Change-Id: I3782ea7ed2eaacdcad15b34e047a4699bf4f9e4f
|
||
|
|
Signed-off-by: Zhen Kong <zkong@codeaurora.org>
|
||
|
|
---
|
||
|
|
drivers/crypto/msm/qcrypto.c | 6 +++---
|
||
|
|
1 file changed, 3 insertions(+), 3 deletions(-)
|
||
|
|
|
||
|
|
diff --git a/drivers/crypto/msm/qcrypto.c b/drivers/crypto/msm/qcrypto.c
|
||
|
|
index 40a4105..2d83304 100644
|
||
|
|
--- a/drivers/crypto/msm/qcrypto.c
|
||
|
|
+++ b/drivers/crypto/msm/qcrypto.c
|
||
|
|
@@ -1870,12 +1870,12 @@ static int _qcrypto_process_aead(struct crypto_engine *pengine,
|
||
|
|
* include assoicated data, ciphering data stream,
|
||
|
|
* generated MAC, and CCM padding.
|
||
|
|
*/
|
||
|
|
- if ((MAX_ALIGN_SIZE * 2 > ULONG_MAX - req->assoclen) ||
|
||
|
|
+ if ((MAX_ALIGN_SIZE * 2 > UINT_MAX - req->assoclen) ||
|
||
|
|
((MAX_ALIGN_SIZE * 2 + req->assoclen) >
|
||
|
|
- ULONG_MAX - qreq.ivsize) ||
|
||
|
|
+ UINT_MAX - qreq.ivsize) ||
|
||
|
|
((MAX_ALIGN_SIZE * 2 + req->assoclen
|
||
|
|
+ qreq.ivsize)
|
||
|
|
- > ULONG_MAX - req->cryptlen)) {
|
||
|
|
+ > UINT_MAX - req->cryptlen)) {
|
||
|
|
pr_err("Integer overflow on aead req length.\n");
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
--
|
||
|
|
cgit v1.1
|
||
|
|
|