FKIE_CVE-2023-53754

Vulnerability from fkie_nvd - Published: 2025-12-08 02:15 - Updated: 2025-12-08 18:26
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix ioremap issues in lpfc_sli4_pci_mem_setup() When if_type equals zero and pci_resource_start(pdev, PCI_64BIT_BAR4) returns false, drbl_regs_memmap_p is not remapped. This passes a NULL pointer to iounmap(), which can trigger a WARN() on certain arches. When if_type equals six and pci_resource_start(pdev, PCI_64BIT_BAR4) returns true, drbl_regs_memmap_p may has been remapped and ctrl_regs_memmap_p is not remapped. This is a resource leak and passes a NULL pointer to iounmap(). To fix these issues, we need to add null checks before iounmap(), and change some goto labels.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/631d0fab143bef85ea0813596f1dda36e2b9724c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/74d90f92eafe8ccd12827228236a28a94eda6bcc
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7e5a54d1f00725a739dcd20f616d82eff4f764bd
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/91a0c0c1413239d0548b5aac4c82f38f6d53a91e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bab8dc38b1a0a12bc064fc064269033bdcf5b88e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e6f1ef4a53856ed000b0f7265d7e16dcb00f4243
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fd8c83d8375b9dac1949f2753485a5c055ebfad0
Impacted products
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: lpfc: Fix ioremap issues in lpfc_sli4_pci_mem_setup()\n\nWhen if_type equals zero and pci_resource_start(pdev, PCI_64BIT_BAR4)\nreturns false, drbl_regs_memmap_p is not remapped. This passes a NULL\npointer to iounmap(), which can trigger a WARN() on certain arches.\n\nWhen if_type equals six and pci_resource_start(pdev, PCI_64BIT_BAR4)\nreturns true, drbl_regs_memmap_p may has been remapped and\nctrl_regs_memmap_p is not remapped. This is a resource leak and passes a\nNULL pointer to iounmap().\n\nTo fix these issues, we need to add null checks before iounmap(), and\nchange some goto labels."
    }
  ],
  "id": "CVE-2023-53754",
  "lastModified": "2025-12-08T18:26:19.900",
  "metrics": {},
  "published": "2025-12-08T02:15:50.973",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/631d0fab143bef85ea0813596f1dda36e2b9724c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/74d90f92eafe8ccd12827228236a28a94eda6bcc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7e5a54d1f00725a739dcd20f616d82eff4f764bd"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/91a0c0c1413239d0548b5aac4c82f38f6d53a91e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bab8dc38b1a0a12bc064fc064269033bdcf5b88e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e6f1ef4a53856ed000b0f7265d7e16dcb00f4243"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fd8c83d8375b9dac1949f2753485a5c055ebfad0"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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