ghsa-48c4-xwvf-f6cx
Vulnerability from github
Published
2025-12-08 03:31
Modified
2025-12-08 03:31
Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53754"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-08T02:15:50Z",
    "severity": null
  },
  "details": "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": "GHSA-48c4-xwvf-f6cx",
  "modified": "2025-12-08T03:31:03Z",
  "published": "2025-12-08T03:31:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53754"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/631d0fab143bef85ea0813596f1dda36e2b9724c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/74d90f92eafe8ccd12827228236a28a94eda6bcc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7e5a54d1f00725a739dcd20f616d82eff4f764bd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/91a0c0c1413239d0548b5aac4c82f38f6d53a91e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bab8dc38b1a0a12bc064fc064269033bdcf5b88e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e6f1ef4a53856ed000b0f7265d7e16dcb00f4243"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fd8c83d8375b9dac1949f2753485a5c055ebfad0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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