DivestOS/Patches/Linux_CVEs/CVE-2017-0626/0.patch

From 64551bccab9b5b933757f6256b58f9ca0544f004 Mon Sep 17 00:00:00 2001
From: Zhen Kong <zkong@codeaurora.org>
Date: Wed, 9 Nov 2016 16:25:24 -0800
Subject: msm: crypto: set CLR_CNTXT bit for crypto operations

HLOS Crypto driver needs to set CLR_CNTXT bit for operations with
legacy software key registers

Change-Id: Iff482f726d106e99a4006f7077a171da3c7ca9c3
Signed-off-by: Zhen Kong <zkong@codeaurora.org>
---
 drivers/crypto/msm/qce50.c | 47 +++++++++++++++++++++++++---------------------
 1 file changed, 26 insertions(+), 21 deletions(-)

diff --git a/drivers/crypto/msm/qce50.c b/drivers/crypto/msm/qce50.c
index 3562de7..a8521fd 100644
--- a/drivers/crypto/msm/qce50.c
+++ b/drivers/crypto/msm/qce50.c
@@ -1347,7 +1347,8 @@ go_proc:
 							CRYPTO_CONFIG_REG));
 	/* issue go to crypto   */
 	if (use_hw_key == false) {
-		QCE_WRITE_REG(((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP)),
+		QCE_WRITE_REG(((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) |
+				(1 << CRYPTO_CLR_CNTXT)),
 				pce_dev->iobase + CRYPTO_GOPROC_REG);
 	} else {
 		QCE_WRITE_REG(((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP)),
@@ -1528,7 +1529,8 @@ static int _ce_setup_aead_direct(struct qce_device *pce_dev,
 
 							CRYPTO_CONFIG_REG));
 	/* issue go to crypto   */
-	QCE_WRITE_REG(((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP)),
+	QCE_WRITE_REG(((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) |
+				(1 << CRYPTO_CLR_CNTXT)),
 				pce_dev->iobase + CRYPTO_GOPROC_REG);
 	/*
 	 * Ensure previous instructions (setting the GO register)
@@ -1847,7 +1849,8 @@ static int _ce_setup_cipher_direct(struct qce_device *pce_dev,
 							CRYPTO_CONFIG_REG));
 	/* issue go to crypto   */
 	if (use_hw_key == false) {
-		QCE_WRITE_REG(((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP)),
+		QCE_WRITE_REG(((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) |
+				(1 << CRYPTO_CLR_CNTXT)),
 				pce_dev->iobase + CRYPTO_GOPROC_REG);
 	} else {
 		QCE_WRITE_REG(((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP)),
@@ -1935,7 +1938,8 @@ static int _ce_f9_setup_direct(struct qce_device *pce_dev,
 	QCE_WRITE_REG(pce_dev->reg.crypto_cfg_le, (pce_dev->iobase +
 							CRYPTO_CONFIG_REG));
 	/* write go */
-	QCE_WRITE_REG(((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP)),
+	QCE_WRITE_REG(((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) |
+				(1 << CRYPTO_CLR_CNTXT)),
 				pce_dev->iobase +  CRYPTO_GOPROC_REG);
 	/*
 	 * Ensure previous instructions (setting the GO register)
@@ -2012,7 +2016,8 @@ static int _ce_f8_setup_direct(struct qce_device *pce_dev,
 	QCE_WRITE_REG(pce_dev->reg.crypto_cfg_le, (pce_dev->iobase +
 							CRYPTO_CONFIG_REG));
 	/* write go */
-	QCE_WRITE_REG(((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP)),
+	QCE_WRITE_REG(((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) |
+				(1 << CRYPTO_CLR_CNTXT)),
 				pce_dev->iobase +  CRYPTO_GOPROC_REG);
 	/*
 	 * Ensure previous instructions (setting the GO register)
@@ -3323,8 +3328,8 @@ static int _setup_cipher_aes_cmdlistptrs(struct qce_device *pdev, int cri_index,
 			pdev->reg.crypto_cfg_le, NULL);
 
 	qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_GOPROC_REG,
-			((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP)),
-			&pcl_info->go_proc);
+			((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) |
+			(1 << CRYPTO_CLR_CNTXT)), &pcl_info->go_proc);
 
 	pcl_info->size = (uintptr_t)ce_vaddr - (uintptr_t)ce_vaddr_start;
 	*pvaddr = (unsigned char *) ce_vaddr;
@@ -3437,8 +3442,8 @@ static int _setup_cipher_des_cmdlistptrs(struct qce_device *pdev, int cri_index,
 			pdev->reg.crypto_cfg_le, NULL);
 
 	qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_GOPROC_REG,
-			((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP)),
-			&pcl_info->go_proc);
+			((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) |
+			(1 << CRYPTO_CLR_CNTXT)), &pcl_info->go_proc);
 
 	pcl_info->size = (uintptr_t)ce_vaddr - (uintptr_t)ce_vaddr_start;
 	*pvaddr = (unsigned char *) ce_vaddr;
@@ -3481,8 +3486,8 @@ static int _setup_cipher_null_cmdlistptrs(struct qce_device *pdev,
 						NULL);
 
 	qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_GOPROC_REG,
-			((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP)),
-			&pcl_info->go_proc);
+			((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) |
+			(1 << CRYPTO_CLR_CNTXT)), &pcl_info->go_proc);
 
 	pcl_info->size = (uintptr_t)ce_vaddr - (uintptr_t)ce_vaddr_start;
 	*pvaddr = (unsigned char *) ce_vaddr;
@@ -3659,8 +3664,8 @@ static int _setup_auth_cmdlistptrs(struct qce_device *pdev, int cri_index,
 					pdev->reg.crypto_cfg_le, NULL);
 
 	qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_GOPROC_REG,
-			((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP)),
-			&pcl_info->go_proc);
+			((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) |
+			(1 << CRYPTO_CLR_CNTXT)), &pcl_info->go_proc);
 
 	pcl_info->size = (uintptr_t)ce_vaddr - (uintptr_t)ce_vaddr_start;
 	*pvaddr = (unsigned char *) ce_vaddr;
@@ -3876,8 +3881,8 @@ static int _setup_aead_cmdlistptrs(struct qce_device *pdev,
 					pdev->reg.crypto_cfg_le, NULL);
 
 	qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_GOPROC_REG,
-			((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP)),
-			&pcl_info->go_proc);
+			((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) |
+			(1 << CRYPTO_CLR_CNTXT)), &pcl_info->go_proc);
 
 	pcl_info->size = (uintptr_t)ce_vaddr - (uintptr_t)ce_vaddr_start;
 	*pvaddr = (unsigned char *) ce_vaddr;
@@ -4009,8 +4014,8 @@ static int _setup_aead_ccm_cmdlistptrs(struct qce_device *pdev, int cri_index,
 					pdev->reg.crypto_cfg_le, NULL);
 
 	qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_GOPROC_REG,
-			((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP)),
-			&pcl_info->go_proc);
+			((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) |
+			(1 << CRYPTO_CLR_CNTXT)), &pcl_info->go_proc);
 
 	pcl_info->size = (uintptr_t)ce_vaddr - (uintptr_t)ce_vaddr_start;
 	*pvaddr = (unsigned char *) ce_vaddr;
@@ -4095,8 +4100,8 @@ static int _setup_f8_cmdlistptrs(struct qce_device *pdev, int cri_index,
 					pdev->reg.crypto_cfg_le, NULL);
 
 	qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_GOPROC_REG,
-			((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP)),
-			&pcl_info->go_proc);
+			((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) |
+			(1 << CRYPTO_CLR_CNTXT)), &pcl_info->go_proc);
 
 	pcl_info->size = (uintptr_t)ce_vaddr - (uintptr_t)ce_vaddr_start;
 	*pvaddr = (unsigned char *) ce_vaddr;
@@ -4177,8 +4182,8 @@ static int _setup_f9_cmdlistptrs(struct qce_device *pdev, int cri_index,
 					pdev->reg.crypto_cfg_le, NULL);
 
 	qce_add_cmd_element(pdev, &ce_vaddr, CRYPTO_GOPROC_REG,
-			((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP)),
-			&pcl_info->go_proc);
+			((1 << CRYPTO_GO) | (1 << CRYPTO_RESULTS_DUMP) |
+			(1 << CRYPTO_CLR_CNTXT)), &pcl_info->go_proc);
 
 	pcl_info->size = (uintptr_t)ce_vaddr - (uintptr_t)ce_vaddr_start;
 	*pvaddr = (unsigned char *) ce_vaddr;
-- 
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