CVE-2023-53754scsi: lpfc: Fix ioremap issues in lpfc_sli4_pci_mem_setup()
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Deferred
- Record last updated
- May 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 1351e69fc6db30e186295f1c9495d03cef6a01a2 builds before 74d90f92eafe8ccd12827228236a28a94eda6bcc; from 1351e69fc6db30e186295f1c9495d03cef6a01a2 before bab8dc38b1a0a12bc064fc064269033bdcf5b88e; from 1351e69fc6db30e186295f1c9495d03cef6a01a2 before fd8c83d8375b9dac1949f2753485a5c055ebfad0; from 1351e69fc6db30e186295f1c9495d03cef6a01a2 before e6f1ef4a53856ed000b0f7265d7e16dcb00f4243; 1351e69fc6db30e186295f1c9495d03cef6a01a2 builds before 631d0fab143bef85ea0813596f1dda36e2b9724c; 1351e69fc6db30e186295f1c9495d03cef6a01a2 builds before 7e5a54d1f00725a739dcd20f616d82eff4f764bd; 1351e69fc6db30e186295f1c9495d03cef6a01a2 builds before 91a0c0c1413239d0548b5aac4c82f38f6d53a91e | CNA record |
References
- https://git.kernel.org/stable/c/74d90f92eafe8ccd12827228236a28a94eda6bcc
- https://git.kernel.org/stable/c/bab8dc38b1a0a12bc064fc064269033bdcf5b88e
- https://git.kernel.org/stable/c/fd8c83d8375b9dac1949f2753485a5c055ebfad0
- https://git.kernel.org/stable/c/e6f1ef4a53856ed000b0f7265d7e16dcb00f4243
- https://git.kernel.org/stable/c/631d0fab143bef85ea0813596f1dda36e2b9724c
- https://git.kernel.org/stable/c/7e5a54d1f00725a739dcd20f616d82eff4f764bd
- https://git.kernel.org/stable/c/91a0c0c1413239d0548b5aac4c82f38f6d53a91e
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.