CVE-2023-54167 (GCVE-0-2023-54167)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:08 – Updated: 2025-12-30 12:08
VLAI?
Title
m68k: mm: Move initrd phys_to_virt handling after paging_init()
Summary
In the Linux kernel, the following vulnerability has been resolved: m68k: mm: Move initrd phys_to_virt handling after paging_init() When booting with an initial ramdisk on platforms where physical memory does not start at address zero (e.g. on Amiga): initrd: 0ef0602c - 0f800000 Zone ranges: DMA [mem 0x0000000008000000-0x000000f7ffffffff] Normal empty Movable zone start for each node Early memory node ranges node 0: [mem 0x0000000008000000-0x000000000f7fffff] Initmem setup node 0 [mem 0x0000000008000000-0x000000000f7fffff] Unable to handle kernel access at virtual address (ptrval) Oops: 00000000 Modules linked in: PC: [<00201d3c>] memcmp+0x28/0x56 As phys_to_virt() relies on m68k_memoffset and module_fixup(), it must not be called before paging_init(). Hence postpone the phys_to_virt handling for the initial ramdisk until after calling paging_init(). While at it, reduce #ifdef clutter by using IS_ENABLED() instead.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 376e3fdecb0dcae216c0ac559cff066f460bf47b , < ceb089e2337f810d3594d310953d9af4783f660a (git)
Affected: 376e3fdecb0dcae216c0ac559cff066f460bf47b , < 58662cfb459150b9c0c22d20cddaea439b3844bd (git)
Affected: 376e3fdecb0dcae216c0ac559cff066f460bf47b , < d4b97925e87eb133e400fe4a482d750c74ce392f (git)
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    Linux Linux Affected: 5.17
Unaffected: 0 , < 5.17 (semver)
Unaffected: 6.1.20 , ≤ 6.1.* (semver)
Unaffected: 6.2.7 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/m68k/kernel/setup_mm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "status": "affected",
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              "versionType": "git"
            },
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              "versionType": "git"
            }
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "5.17"
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              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.20",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2.7",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nm68k: mm: Move initrd phys_to_virt handling after paging_init()\n\nWhen booting with an initial ramdisk on platforms where physical memory\ndoes not start at address zero (e.g. on Amiga):\n\n    initrd: 0ef0602c - 0f800000\n    Zone ranges:\n      DMA      [mem 0x0000000008000000-0x000000f7ffffffff]\n      Normal   empty\n    Movable zone start for each node\n    Early memory node ranges\n      node   0: [mem 0x0000000008000000-0x000000000f7fffff]\n    Initmem setup node 0 [mem 0x0000000008000000-0x000000000f7fffff]\n    Unable to handle kernel access at virtual address (ptrval)\n    Oops: 00000000\n    Modules linked in:\n    PC: [\u003c00201d3c\u003e] memcmp+0x28/0x56\n\nAs phys_to_virt() relies on m68k_memoffset and module_fixup(), it must\nnot be called before paging_init().  Hence postpone the phys_to_virt\nhandling for the initial ramdisk until after calling paging_init().\n\nWhile at it, reduce #ifdef clutter by using IS_ENABLED() instead."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-30T12:08:42.705Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ceb089e2337f810d3594d310953d9af4783f660a"
        },
        {
          "url": "https://git.kernel.org/stable/c/58662cfb459150b9c0c22d20cddaea439b3844bd"
        },
        {
          "url": "https://git.kernel.org/stable/c/d4b97925e87eb133e400fe4a482d750c74ce392f"
        }
      ],
      "title": "m68k: mm: Move initrd phys_to_virt handling after paging_init()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-54167",
    "datePublished": "2025-12-30T12:08:42.705Z",
    "dateReserved": "2025-12-30T12:06:44.495Z",
    "dateUpdated": "2025-12-30T12:08:42.705Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-54167\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-30T13:16:04.503\",\"lastModified\":\"2025-12-31T20:43:05.160\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nm68k: mm: Move initrd phys_to_virt handling after paging_init()\\n\\nWhen booting with an initial ramdisk on platforms where physical memory\\ndoes not start at address zero (e.g. on Amiga):\\n\\n    initrd: 0ef0602c - 0f800000\\n    Zone ranges:\\n      DMA      [mem 0x0000000008000000-0x000000f7ffffffff]\\n      Normal   empty\\n    Movable zone start for each node\\n    Early memory node ranges\\n      node   0: [mem 0x0000000008000000-0x000000000f7fffff]\\n    Initmem setup node 0 [mem 0x0000000008000000-0x000000000f7fffff]\\n    Unable to handle kernel access at virtual address (ptrval)\\n    Oops: 00000000\\n    Modules linked in:\\n    PC: [\u003c00201d3c\u003e] memcmp+0x28/0x56\\n\\nAs phys_to_virt() relies on m68k_memoffset and module_fixup(), it must\\nnot be called before paging_init().  Hence postpone the phys_to_virt\\nhandling for the initial ramdisk until after calling paging_init().\\n\\nWhile at it, reduce #ifdef clutter by using IS_ENABLED() instead.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/58662cfb459150b9c0c22d20cddaea439b3844bd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ceb089e2337f810d3594d310953d9af4783f660a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d4b97925e87eb133e400fe4a482d750c74ce392f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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