CVE-2024-56689 (GCVE-0-2024-56689)

Vulnerability from cvelistv5 – Published: 2024-12-28 09:46 – Updated: 2026-05-11 20:57
VLAI
Title
PCI: endpoint: epf-mhi: Avoid NULL dereference if DT lacks 'mmio'
Summary
In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: epf-mhi: Avoid NULL dereference if DT lacks 'mmio' If platform_get_resource_byname() fails and returns NULL because DT lacks an 'mmio' property for the MHI endpoint, dereferencing res->start will cause a NULL pointer access. Add a check to prevent it. [kwilczynski: error message update per the review feedback] [bhelgaas: commit log]
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 20:09 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6848 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1bf5f25324f7f6a52c3eb566ec5f78f6a901db96 , < 242ee2b0ad9b23f47084904fce3f9f228068a1f9 (git)
Affected: 1bf5f25324f7f6a52c3eb566ec5f78f6a901db96 , < c8b9d6b7d62a444e0bca5b9ae28f9f2b0f52feef (git)
Affected: 1bf5f25324f7f6a52c3eb566ec5f78f6a901db96 , < 0e6d92e3b973de78eb7015154cf1197af9fac5c9 (git)
Affected: 1bf5f25324f7f6a52c3eb566ec5f78f6a901db96 , < 5089b3d874e9933d9842e90410d3af1520494757 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.6.64 , ≤ 6.6.* (semver)
Unaffected: 6.11.11 , ≤ 6.11.* (semver)
Unaffected: 6.12.2 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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                  "version": "1bf5f25324f7f6a52c3eb566ec5f78f6a901db96",
                  "versionType": "git"
                },
                {
                  "lessThan": "0e6d92e3b973de78eb7015154cf1197af9fac5c9",
                  "status": "affected",
                  "version": "1bf5f25324f7f6a52c3eb566ec5f78f6a901db96",
                  "versionType": "git"
                },
                {
                  "lessThan": "5089b3d874e9933d9842e90410d3af1520494757",
                  "status": "affected",
                  "version": "1bf5f25324f7f6a52c3eb566ec5f78f6a901db96",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/pci/endpoint/functions/pci-epf-mhi.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "6.5"
                },
                {
                  "lessThan": "6.5",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.64",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.11.*",
                  "status": "unaffected",
                  "version": "6.11.11",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.12.*",
                  "status": "unaffected",
                  "version": "6.12.2",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.13",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.64",
                      "versionStartIncluding": "6.5",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.11.11",
                      "versionStartIncluding": "6.5",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12.2",
                      "versionStartIncluding": "6.5",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.13",
                      "versionStartIncluding": "6.5",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: epf-mhi: Avoid NULL dereference if DT lacks \u0027mmio\u0027\n\nIf platform_get_resource_byname() fails and returns NULL because DT lacks\nan \u0027mmio\u0027 property for the MHI endpoint, dereferencing res-\u003estart will\ncause a NULL pointer access. Add a check to prevent it.\n\n[kwilczynski: error message update per the review feedback]\n[bhelgaas: commit log]"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T20:57:20.757Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/242ee2b0ad9b23f47084904fce3f9f228068a1f9"
            },
            {
              "url": "https://git.kernel.org/stable/c/c8b9d6b7d62a444e0bca5b9ae28f9f2b0f52feef"
            },
            {
              "url": "https://git.kernel.org/stable/c/0e6d92e3b973de78eb7015154cf1197af9fac5c9"
            },
            {
              "url": "https://git.kernel.org/stable/c/5089b3d874e9933d9842e90410d3af1520494757"
            }
          ],
          "title": "PCI: endpoint: epf-mhi: Avoid NULL dereference if DT lacks \u0027mmio\u0027",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-56689",
        "datePublished": "2024-12-28T09:46:15.587Z",
        "dateReserved": "2024-12-27T15:00:39.848Z",
        "dateUpdated": "2026-05-11T20:57:20.757Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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