5.1

CVE-2023-53754: scsi: lpfc: Fix ioremap issues in lpfc_sli4_pci_mem_setup()

Deferred
AliasesUBUNTU-CVE-2023-53754DEBIAN-CVE-2023-53754
Published 08-12-2025Last modified 11-05-2026

Vulnerability summary

CVE-2023-53754 is a medium (CVSS 5.1) vulnerability in linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.8% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.1, physical access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.1/10
010
Medium · v4.0 (OSV · Ubuntu), selected by version preference
EPSS score
0.19%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 5
SUSE-SU-2026:0263-1SUSE-SU-2026:0316-1SUSE-SU-2026:0317-1SUSE-SU-2026:0411-1SUSE-SU-2026:0617-1

Timeline

  1. 08-12-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.19% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: physical access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu123 products
  • linuxAll versions (No fix recorded) | < 5.4.0-162.179 | < 5.15.0-79.86
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1109.118 | < 5.15.0-1042.47
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.37-1 | < 6.3.7-1
Linux1 product
  • linux≥ 1351e69fc6db30e186295f1c9495d03cef6a01a2, < 74d90f92eafe8ccd12827228236a28a94eda6bcc | ≥ 1351e69fc6db30e186295f1c9495d03cef6a01a2, < bab8dc38b1a0a12bc064fc064269033bdcf5b88e | ≥ 1351e69fc6db30e186295f1c9495d03cef6a01a2, < fd8c83d8375b9dac1949f2753485a5c055ebfad0 | ≥ 1351e69fc6db30e186295f1c9495d03cef6a01a2, < e6f1ef4a53856ed000b0f7265d7e16dcb00f4243 | ≥ 1351e69fc6db30e186295f1c9495d03cef6a01a2, < 631d0fab143bef85ea0813596f1dda36e2b9724c | ≥ 1351e69fc6db30e186295f1c9495d03cef6a01a2, < 7e5a54d1f00725a739dcd20f616d82eff4f764bd | ≥ 1351e69fc6db30e186295f1c9495d03cef6a01a2, < 91a0c0c1413239d0548b5aac4c82f38f6d53a91e | 4.17

3 vendors · 125 products

References

11 links
Show all 11 references