fkie_cve-2023-54167
Vulnerability from fkie_nvd
Published
2025-12-30 13:16
Modified
2025-12-31 20:43
Severity ?
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/58662cfb459150b9c0c22d20cddaea439b3844bd
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ceb089e2337f810d3594d310953d9af4783f660a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d4b97925e87eb133e400fe4a482d750c74ce392f
Impacted products
Vendor Product Version


To clipboard 

{
  "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."
    }
  ],
  "id": "CVE-2023-54167",
  "lastModified": "2025-12-31T20:43:05.160",
  "metrics": {},
  "published": "2025-12-30T13:16:04.503",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "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"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • 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.