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dkim=pass header.d=oracle.com header.s=corp-2021-07-09 header.b=C8MPYyRt; dkim=pass header.d=oracle.onmicrosoft.com header.s=selector2-oracle-onmicrosoft-com header.b=DUh6pkUy; spf=none (imf22.hostedemail.com: domain of dan.carpenter@oracle.com has no SPF policy when checking 205.220.177.32) smtp.mailfrom=dan.carpenter@oracle.com; dmarc=pass (policy=none) header.from=oracle.com X-Rspamd-Server: rspam09 X-HE-Tag: 1651652868-528562 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 44a2f39e611ac0bc1f17c288a583d7f2e5684aa7 commit: 622469c87fc3e6c90a980be3e2287d82bd55c977 [6728/8237] drm/amdgpu/discovery: add a function to parse the vcn info table config: ia64-randconfig-m031-20220501 (https://download.01.org/0day-ci/archive/20220503/202205032029.WhMJzKlz-lkp@intel.com/config) compiler: ia64-linux-gcc (GCC) 11.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot Reported-by: Dan Carpenter smatch warnings: drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c:1433 amdgpu_discovery_get_vcn_info() error: buffer overflow 'adev->vcn.vcn_codec_disable_mask' 2 <= 3 vim +1433 drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c 622469c87fc3e6 Alex Deucher 2022-03-30 1403 int amdgpu_discovery_get_vcn_info(struct amdgpu_device *adev) 622469c87fc3e6 Alex Deucher 2022-03-30 1404 { 622469c87fc3e6 Alex Deucher 2022-03-30 1405 struct binary_header *bhdr; 622469c87fc3e6 Alex Deucher 2022-03-30 1406 union vcn_info *vcn_info; 622469c87fc3e6 Alex Deucher 2022-03-30 1407 u16 offset; 622469c87fc3e6 Alex Deucher 2022-03-30 1408 int v; 622469c87fc3e6 Alex Deucher 2022-03-30 1409 622469c87fc3e6 Alex Deucher 2022-03-30 1410 if (!adev->mman.discovery_bin) { 622469c87fc3e6 Alex Deucher 2022-03-30 1411 DRM_ERROR("ip discovery uninitialized\n"); 622469c87fc3e6 Alex Deucher 2022-03-30 1412 return -EINVAL; 622469c87fc3e6 Alex Deucher 2022-03-30 1413 } 622469c87fc3e6 Alex Deucher 2022-03-30 1414 622469c87fc3e6 Alex Deucher 2022-03-30 1415 if (adev->vcn.num_vcn_inst > VCN_INFO_TABLE_MAX_NUM_INSTANCES) { ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ This is 4. Was AMDGPU_MAX_VCN_INSTANCES (2) intended? 622469c87fc3e6 Alex Deucher 2022-03-30 1416 dev_err(adev->dev, "invalid vcn instances\n"); 622469c87fc3e6 Alex Deucher 2022-03-30 1417 return -EINVAL; 622469c87fc3e6 Alex Deucher 2022-03-30 1418 } 622469c87fc3e6 Alex Deucher 2022-03-30 1419 622469c87fc3e6 Alex Deucher 2022-03-30 1420 bhdr = (struct binary_header *)adev->mman.discovery_bin; 622469c87fc3e6 Alex Deucher 2022-03-30 1421 offset = le16_to_cpu(bhdr->table_list[VCN_INFO].offset); 622469c87fc3e6 Alex Deucher 2022-03-30 1422 622469c87fc3e6 Alex Deucher 2022-03-30 1423 if (!offset) { 622469c87fc3e6 Alex Deucher 2022-03-30 1424 dev_err(adev->dev, "invalid vcn table offset\n"); 622469c87fc3e6 Alex Deucher 2022-03-30 1425 return -EINVAL; 622469c87fc3e6 Alex Deucher 2022-03-30 1426 } 622469c87fc3e6 Alex Deucher 2022-03-30 1427 622469c87fc3e6 Alex Deucher 2022-03-30 1428 vcn_info = (union vcn_info *)(adev->mman.discovery_bin + offset); 622469c87fc3e6 Alex Deucher 2022-03-30 1429 622469c87fc3e6 Alex Deucher 2022-03-30 1430 switch (le16_to_cpu(vcn_info->v1.header.version_major)) { 622469c87fc3e6 Alex Deucher 2022-03-30 1431 case 1: 622469c87fc3e6 Alex Deucher 2022-03-30 1432 for (v = 0; v < adev->vcn.num_vcn_inst; v++) { 622469c87fc3e6 Alex Deucher 2022-03-30 @1433 adev->vcn.vcn_codec_disable_mask[v] = ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Out of bounds. 622469c87fc3e6 Alex Deucher 2022-03-30 1434 le32_to_cpu(vcn_info->v1.instance_info[v].fuse_data.all_bits); 622469c87fc3e6 Alex Deucher 2022-03-30 1435 } 622469c87fc3e6 Alex Deucher 2022-03-30 1436 break; 622469c87fc3e6 Alex Deucher 2022-03-30 1437 default: 622469c87fc3e6 Alex Deucher 2022-03-30 1438 dev_err(adev->dev, 622469c87fc3e6 Alex Deucher 2022-03-30 1439 "Unhandled VCN info table %d.%d\n", 622469c87fc3e6 Alex Deucher 2022-03-30 1440 le16_to_cpu(vcn_info->v1.header.version_major), 622469c87fc3e6 Alex Deucher 2022-03-30 1441 le16_to_cpu(vcn_info->v1.header.version_minor)); 622469c87fc3e6 Alex Deucher 2022-03-30 1442 return -EINVAL; 622469c87fc3e6 Alex Deucher 2022-03-30 1443 } 622469c87fc3e6 Alex Deucher 2022-03-30 1444 return 0; f39f5bb1c9d68d Xiaojie Yuan 2019-06-20 1445 } -- 0-DAY CI Kernel Test Service https://01.org/lkp