{"id":"CVE-2023-53754","summary":"scsi: lpfc: Fix ioremap issues in lpfc_sli4_pci_mem_setup()","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.","modified":"2026-04-02T09:45:05.298934Z","published":"2025-12-08T01:19:14.821Z","related":["SUSE-SU-2026:0263-1","SUSE-SU-2026:0316-1","SUSE-SU-2026:0317-1","SUSE-SU-2026:0411-1","SUSE-SU-2026:0617-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53754.json"},"references":[{"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"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53754.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53754"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"1351e69fc6db30e186295f1c9495d03cef6a01a2"},{"fixed":"74d90f92eafe8ccd12827228236a28a94eda6bcc"},{"fixed":"bab8dc38b1a0a12bc064fc064269033bdcf5b88e"},{"fixed":"fd8c83d8375b9dac1949f2753485a5c055ebfad0"},{"fixed":"e6f1ef4a53856ed000b0f7265d7e16dcb00f4243"},{"fixed":"631d0fab143bef85ea0813596f1dda36e2b9724c"},{"fixed":"7e5a54d1f00725a739dcd20f616d82eff4f764bd"},{"fixed":"91a0c0c1413239d0548b5aac4c82f38f6d53a91e"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53754.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.17.0"},{"fixed":"5.4.243"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.180"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.111"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.28"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.2.15"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.3.0"},{"fixed":"6.3.2"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53754.json"}}],"schema_version":"1.7.5"}