{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2021-47047",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: spi-zynqmp-gqspi: return -ENOMEM if dma_map_single fails\n\nThe spi controller supports 44-bit address space on AXI in DMA mode,\nso set dma_addr_t width to 44-bit to avoid using a swiotlb mapping.\nIn addition, if dma_map_single fails, it should return immediately\ninstead of continuing doing the DMA operation which bases on invalid\naddress.\n\nThis fixes the following crash which occurs in reading a big block\nfrom flash:\n\n[  123.633577] zynqmp-qspi ff0f0000.spi: swiotlb buffer is full (sz: 4194304 bytes), total 32768 (slots), used 0 (slots)\n[  123.644230] zynqmp-qspi ff0f0000.spi: ERR:rxdma:memory not mapped\n[  123.784625] Unable to handle kernel paging request at virtual address 00000000003fffc0\n[  123.792536] Mem abort info:\n[  123.795313]   ESR = 0x96000145\n[  123.798351]   EC = 0x25: DABT (current EL), IL = 32 bits\n[  123.803655]   SET = 0, FnV = 0\n[  123.806693]   EA = 0, S1PTW = 0\n[  123.809818] Data abort info:\n[  123.812683]   ISV = 0, ISS = 0x00000145\n[  123.816503]   CM = 1, WnR = 1\n[  123.819455] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000805047000\n[  123.825887] [00000000003fffc0] pgd=0000000803b45003, p4d=0000000803b45003, pud=0000000000000000\n[  123.834586] Internal error: Oops: 96000145 [#1] PREEMPT SMP"
            }
        ]
    },
    "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": "1c26372e5aa9",
                                            "version_value": "5980a3b9c933"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "5.10",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "5.10",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.10.37",
                                                        "lessThanOrEqual": "5.10.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.11.21",
                                                        "lessThanOrEqual": "5.11.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.12.4",
                                                        "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/5980a3b9c933408bc22b0e349b78c3ebd7cbf880",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/5980a3b9c933408bc22b0e349b78c3ebd7cbf880"
            },
            {
                "url": "https://git.kernel.org/stable/c/c26c026eb496261dbc0adbf606cc81989cd2038c",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/c26c026eb496261dbc0adbf606cc81989cd2038c"
            },
            {
                "url": "https://git.kernel.org/stable/c/bad5a23cf2b477fa78b85fd392736dae09a1e818",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/bad5a23cf2b477fa78b85fd392736dae09a1e818"
            },
            {
                "url": "https://git.kernel.org/stable/c/126bdb606fd2802454e6048caef1be3e25dd121e",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/126bdb606fd2802454e6048caef1be3e25dd121e"
            }
        ]
    },
    "generator": {
        "engine": "bippy-c298863b1525"
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}