{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2021-47142",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Fix a use-after-free\n\nlooks like we forget to set ttm->sg to NULL.\nHit panic below\n\n[ 1235.844104] general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b7b4b: 0000 [#1] SMP DEBUG_PAGEALLOC NOPTI\n[ 1235.989074] Call Trace:\n[ 1235.991751]  sg_free_table+0x17/0x20\n[ 1235.995667]  amdgpu_ttm_backend_unbind.cold+0x4d/0xf7 [amdgpu]\n[ 1236.002288]  amdgpu_ttm_backend_destroy+0x29/0x130 [amdgpu]\n[ 1236.008464]  ttm_tt_destroy+0x1e/0x30 [ttm]\n[ 1236.013066]  ttm_bo_cleanup_memtype_use+0x51/0xa0 [ttm]\n[ 1236.018783]  ttm_bo_release+0x262/0xa50 [ttm]\n[ 1236.023547]  ttm_bo_put+0x82/0xd0 [ttm]\n[ 1236.027766]  amdgpu_bo_unref+0x26/0x50 [amdgpu]\n[ 1236.032809]  amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu+0x7aa/0xd90 [amdgpu]\n[ 1236.040400]  kfd_ioctl_alloc_memory_of_gpu+0xe2/0x330 [amdgpu]\n[ 1236.046912]  kfd_ioctl+0x463/0x690 [amdgpu]"
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Linux",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Linux",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "1da177e4c3f4",
                                            "version_value": "0707c3fea810"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "4.4.271",
                                                        "lessThanOrEqual": "4.4.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "4.9.271",
                                                        "lessThanOrEqual": "4.9.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "4.14.235",
                                                        "lessThanOrEqual": "4.14.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "4.19.193",
                                                        "lessThanOrEqual": "4.19.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.4.124",
                                                        "lessThanOrEqual": "5.4.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.10.42",
                                                        "lessThanOrEqual": "5.10.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.12.9",
                                                        "lessThanOrEqual": "5.12.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.13",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/0707c3fea8102d211631ba515ef2159707561b0d",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/0707c3fea8102d211631ba515ef2159707561b0d"
            },
            {
                "url": "https://git.kernel.org/stable/c/3293cf3513d69f00c14d43e2020826d45ea0e46a",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/3293cf3513d69f00c14d43e2020826d45ea0e46a"
            },
            {
                "url": "https://git.kernel.org/stable/c/952ab3f9f48eb0e8050596d41951cf516be6b122",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/952ab3f9f48eb0e8050596d41951cf516be6b122"
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                "url": "https://git.kernel.org/stable/c/a849e218556f932576c0fb1c5a88714b61709a17",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/a849e218556f932576c0fb1c5a88714b61709a17"
            },
            {
                "url": "https://git.kernel.org/stable/c/7398c2aab4da960761ec182d04d6d5abbb4a226e",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/7398c2aab4da960761ec182d04d6d5abbb4a226e"
            },
            {
                "url": "https://git.kernel.org/stable/c/f98cdf084405333ee2f5be548a91b2d168e49276",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/f98cdf084405333ee2f5be548a91b2d168e49276"
            },
            {
                "url": "https://git.kernel.org/stable/c/d4ea141fd4b40636a8326df5a377d9c5cf9b3faa",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/d4ea141fd4b40636a8326df5a377d9c5cf9b3faa"
            },
            {
                "url": "https://git.kernel.org/stable/c/1e5c37385097c35911b0f8a0c67ffd10ee1af9a2",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/1e5c37385097c35911b0f8a0c67ffd10ee1af9a2"
            }
        ]
    },
    "generator": {
        "engine": "bippy-a5840b7849dd"
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}