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.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/631d0fab143bef85ea0813596f1dda36e2b9724c cve-icon cve-icon
https://git.kernel.org/stable/c/74d90f92eafe8ccd12827228236a28a94eda6bcc cve-icon cve-icon
https://git.kernel.org/stable/c/7e5a54d1f00725a739dcd20f616d82eff4f764bd cve-icon cve-icon
https://git.kernel.org/stable/c/91a0c0c1413239d0548b5aac4c82f38f6d53a91e cve-icon cve-icon
https://git.kernel.org/stable/c/bab8dc38b1a0a12bc064fc064269033bdcf5b88e cve-icon cve-icon
https://git.kernel.org/stable/c/e6f1ef4a53856ed000b0f7265d7e16dcb00f4243 cve-icon cve-icon
https://git.kernel.org/stable/c/fd8c83d8375b9dac1949f2753485a5c055ebfad0 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025120843-CVE-2023-53754-c601@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-53754 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-53754 cve-icon
History

Tue, 09 Dec 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low

Mon, 08 Dec 2025 02:00:00 +0000

Type Values Removed Values Added
Description 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.
Title scsi: lpfc: Fix ioremap issues in lpfc_sli4_pci_mem_setup()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-12-08T01:19:14.821Z

Updated: 2025-12-08T01:19:14.821Z

Reserved: 2025-12-08T01:18:04.280Z

Link: CVE-2023-53754

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-08T02:15:50.973

Modified: 2025-12-08T18:26:19.900

Link: CVE-2023-53754

cve-icon Redhat

Severity : Low

Publid Date: 2025-12-08T00:00:00Z

Links: CVE-2023-53754 - Bugzilla