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CVE-2023-53754

UnknownEPSS 0.18%

Last modified

CVE-2023-53754 is a vulnerability of currently unknown severity. 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. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
0.18%

7.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 1351e69fc6db30e186295f1c9495d03cef6a01a2, < 74d90f92eafe8ccd12827228236a28a94eda6bcc; >= 1351e69fc6db30e186295f1c9495d03cef6a01a2, < bab8dc38b1a0a12bc064fc064269033bdcf5b88e; >= 1351e69fc6db30e186295f1c9495d03cef6a01a2, < fd8c83d8375b9dac1949f2753485a5c055ebfad0; >= 1351e69fc6db30e186295f1c9495d03cef6a01a2, < e6f1ef4a53856ed000b0f7265d7e16dcb00f4243; >= 1351e69fc6db30e186295f1c9495d03cef6a01a2, < 631d0fab143bef85ea0813596f1dda36e2b9724c; >= 1351e69fc6db30e186295f1c9495d03cef6a01a2, < 7e5a54d1f00725a739dcd20f616d82eff4f764bd; >= 1351e69fc6db30e186295f1c9495d03cef6a01a2, < 91a0c0c1413239d0548b5aac4c82f38f6d53a91e
LinuxLinux4.17

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2023-53754?
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.
How severe is CVE-2023-53754?
Severity scoring for CVE-2023-53754 is pending analysis. The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.
How do I fix CVE-2023-53754?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST