{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2021-47018",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-02-27T18:42:55.954Z",
        "datePublished": "2024-02-28T08:13:33.362Z",
        "dateUpdated": "2024-09-11T17:33:29.939Z"
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                "shortName": "Linux",
                "dateUpdated": "2024-05-29T05:00:37.047Z"
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            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/64: Fix the definition of the fixmap area\n\nAt the time being, the fixmap area is defined at the top of\nthe address space or just below KASAN.\n\nThis definition is not valid for PPC64.\n\nFor PPC64, use the top of the I/O space.\n\nBecause of circular dependencies, it is not possible to include\nasm/fixmap.h in asm/book3s/64/pgtable.h , so define a fixed size\nAREA at the top of the I/O space for fixmap and ensure during\nbuild that the size is big enough."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/powerpc/include/asm/book3s/64/pgtable.h",
                        "arch/powerpc/include/asm/fixmap.h",
                        "arch/powerpc/include/asm/nohash/64/pgtable.h"
                    ],
                    "versions": [
                        {
                            "version": "265c3491c4bc",
                            "lessThan": "4b9fb2c9039a",
                            "status": "affected",
                            "versionType": "git"
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                        {
                            "version": "265c3491c4bc",
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                            "status": "affected",
                            "versionType": "git"
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                {
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                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/powerpc/include/asm/book3s/64/pgtable.h",
                        "arch/powerpc/include/asm/fixmap.h",
                        "arch/powerpc/include/asm/nohash/64/pgtable.h"
                    ],
                    "versions": [
                        {
                            "version": "5.5",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.5",
                            "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"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/4b9fb2c9039a206d37f215936a4d5bee7b1bf9cd"
                },
                {
                    "url": "https://git.kernel.org/stable/c/abb07dc5e8b61ab7b1dde20dd73aa01a3aeb183f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a84df7c80bdac598d6ac9268ae578da6928883e8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9ccba66d4d2aff9a3909aa77d57ea8b7cc166f3c"
                }
            ],
            "title": "powerpc/64: Fix the definition of the fixmap area",
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                    "dateUpdated": "2024-08-04T05:24:39.558Z"
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                                "role": "CISA Coordinator",
                                "options": [
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                                        "Exploitation": "none"
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                                "version": "2.0.3",
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