cve-2021-47018
Vulnerability from cvelistv5
Published
2024-02-28 08:13
Modified
2024-11-04 11:57
Severity ?
Summary
powerpc/64: Fix the definition of the fixmap area
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website


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                "id": "CVE-2021-47018",
                "options": [
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                    "Exploitation": "none"
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                    "Automatable": "no"
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                  {
                    "Technical Impact": "partial"
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                "timestamp": "2024-09-10T15:58:06.446174Z",
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          "product": "Linux",
          "programFiles": [
            "arch/powerpc/include/asm/book3s/64/pgtable.h",
            "arch/powerpc/include/asm/fixmap.h",
            "arch/powerpc/include/asm/nohash/64/pgtable.h"
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          "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."
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    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47018",
    "datePublished": "2024-02-28T08:13:33.362Z",
    "dateReserved": "2024-02-27T18:42:55.954Z",
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