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From: "Xu, Rosen" <rosen.xu@intel.com>
To: "Huang, Wei" <wei.huang@intel.com>, "dev@dpdk.org" <dev@dpdk.org>,
	"Zhang,  Qi Z" <qi.z.zhang@intel.com>
Cc: "stable@dpdk.org" <stable@dpdk.org>,
	"Zhang, Tianfei" <tianfei.zhang@intel.com>
Subject: Re: [dpdk-stable] [PATCH v1 2/2] raw/ifpga/base: add argument to use untained variable
Date: Thu, 1 Apr 2021 08:48:46 +0000
Message-ID: <BYAPR11MB290102E314F0989E0BF27669897B9@BYAPR11MB2901.namprd11.prod.outlook.com> (raw)
In-Reply-To: <1615969417-17118-3-git-send-email-wei.huang@intel.com>

Hi,

-----Original Message-----
From: Huang, Wei <wei.huang@intel.com> 
Sent: Wednesday, March 17, 2021 4:24 PM
To: dev@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>
Cc: stable@dpdk.org; Zhang, Tianfei <tianfei.zhang@intel.com>; Huang, Wei <wei.huang@intel.com>
Subject: [PATCH v1 2/2] raw/ifpga/base: add argument to use untained variable

In fme_nios_spi_init(), passing tainted expression "fme->max10_dev"
to function "fme_get_board_interface" has risk. Add new arguemnt in function "fme_get_board_interface" to accept untainted variable.

Coverity issue: 367482
Fixes: 96ebfcf8125c ("raw/ifpga/base: add SPI and MAX10 device driver")

Signed-off-by: Wei Huang <wei.huang@intel.com>
---
 drivers/raw/ifpga/base/ifpga_fme.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/raw/ifpga/base/ifpga_fme.c b/drivers/raw/ifpga/base/ifpga_fme.c
index a63f90331f..4edb9e09e1 100644
--- a/drivers/raw/ifpga/base/ifpga_fme.c
+++ b/drivers/raw/ifpga/base/ifpga_fme.c
@@ -857,7 +857,8 @@ static int board_type_to_info(u32 type,
 	return 0;
 }
 
-static int fme_get_board_interface(struct ifpga_fme_hw *fme)
+static int fme_get_board_interface(struct ifpga_fme_hw *fme,
+	struct intel_max10_device *max10_dev)
 {
 	struct fme_bitstream_id id;
 	struct ifpga_hw *hw;
@@ -911,15 +912,15 @@ static int fme_get_board_interface(struct ifpga_fme_hw *fme)
 			fme->board_info.nums_of_fvl,
 			fme->board_info.ports_per_fvl);
 
-	if (max10_sys_read(fme->max10_dev, FPGA_PAGE_INFO, &val))
+	if (max10_sys_read(max10_dev, FPGA_PAGE_INFO, &val))
 		return -EINVAL;
 	fme->board_info.boot_page = val & 0x7;
 
-	if (max10_sys_read(fme->max10_dev, MAX10_BUILD_VER, &val))
+	if (max10_sys_read(max10_dev, MAX10_BUILD_VER, &val))
 		return -EINVAL;
 	fme->board_info.max10_version = val;
 
-	if (max10_sys_read(fme->max10_dev, NIOS2_FW_VERSION, &val))
+	if (max10_sys_read(max10_dev, NIOS2_FW_VERSION, &val))
 		return -EINVAL;
 	fme->board_info.nios_fw_version = val;
 
@@ -1169,7 +1170,7 @@ static int fme_nios_spi_init(struct ifpga_feature *feature)
 
 	max10->bus = hw->pci_data->bus;
 
-	fme_get_board_interface(fme);
+	fme_get_board_interface(fme, max10);
 
 	mgr->sensor_list = &max10->opae_sensor_list;
 
@@ -1186,7 +1187,7 @@ static int fme_nios_spi_init(struct ifpga_feature *feature)
 	return ret;
 
 spi_fail:
-	intel_max10_device_remove(fme->max10_dev);
+	intel_max10_device_remove(max10);
 release_dev:
 	altera_spi_release(spi_master);
 	return -ENODEV;
--
2.29.2

Acked-by: Rosen Xu <rosen.xu@intel.com>

  parent reply	other threads:[~2021-04-01  8:49 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-17  8:23 [dpdk-stable] [PATCH v1 0/2] Fix coverity issues reported in DPDK-26381 Wei Huang
2021-03-17  8:23 ` [dpdk-stable] [PATCH v1 1/2] raw/ifpga/base: use untained variable as argument Wei Huang
2021-04-01  7:48   ` Zhang, Tianfei
2021-04-01  8:48   ` Xu, Rosen
2021-04-07 14:57   ` [dpdk-stable] [dpdk-dev] " Ferruh Yigit
2021-03-17  8:23 ` [dpdk-stable] [PATCH v1 2/2] raw/ifpga/base: add argument to use untained variable Wei Huang
2021-04-01  7:48   ` Zhang, Tianfei
2021-04-01  8:48   ` Xu, Rosen [this message]
2021-04-01 12:17 ` [dpdk-stable] [PATCH v1 0/2] Fix coverity issues reported in DPDK-26381 Zhang, Qi Z
2021-04-20  8:09   ` [dpdk-stable] [dpdk-dev] " Ferruh Yigit
2021-04-20  9:12     ` Zhang, Qi Z
2021-04-20  9:29       ` Zhang, Qi Z

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