github - ghsa-p768-cw2x-34vr

ghsa-p768-cw2x-34vr

Vulnerability from github

Published

2024-02-28 09:30

Modified

2024-02-28 09:30

Details

In the Linux kernel, the following vulnerability has been resolved:

powerpc/64: Fix the definition of the fixmap area

At the time being, the fixmap area is defined at the top of the address space or just below KASAN.

This definition is not valid for PPC64.

For PPC64, use the top of the I/O space.

Because of circular dependencies, it is not possible to include asm/fixmap.h in asm/book3s/64/pgtable.h , so define a fixed size AREA at the top of the I/O space for fixmap and ensure during build that the size is big enough.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47018"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-28T09:15:39Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-p768-cw2x-34vr",
  "modified": "2024-02-28T09:30:38Z",
  "published": "2024-02-28T09:30:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47018"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4b9fb2c9039a206d37f215936a4d5bee7b1bf9cd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ccba66d4d2aff9a3909aa77d57ea8b7cc166f3c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a84df7c80bdac598d6ac9268ae578da6928883e8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/abb07dc5e8b61ab7b1dde20dd73aa01a3aeb183f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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

References

▼	URL	Tags
	https://git.kernel.org/stable/c/4b9fb2c9039a206d37f215936a4d5bee7b1bf9cd
	https://git.kernel.org/stable/c/abb07dc5e8b61ab7b1dde20dd73aa01a3aeb183f
	https://git.kernel.org/stable/c/a84df7c80bdac598d6ac9268ae578da6928883e8
	https://git.kernel.org/stable/c/9ccba66d4d2aff9a3909aa77d57ea8b7cc166f3c

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

JSON

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    "dateReserved": "2024-02-27T18:42:55.954Z",
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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