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 (v2.0.3)
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1bf5f25324f7f6a52c3eb566ec5f78f6a901db96 , < 242ee2b0ad9b23f47084904fce3f9f228068a1f9 (git)
Affected: 1bf5f25324f7f6a52c3eb566ec5f78f6a901db96 , < c8b9d6b7d62a444e0bca5b9ae28f9f2b0f52feef (git)
Affected: 1bf5f25324f7f6a52c3eb566ec5f78f6a901db96 , < 0e6d92e3b973de78eb7015154cf1197af9fac5c9 (git)
Affected: 1bf5f25324f7f6a52c3eb566ec5f78f6a901db96 , < 5089b3d874e9933d9842e90410d3af1520494757 (git)
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)
Create a notification for this product.
Show details on NVD website
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      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-56689\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T20:09:03.144356Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-476\", \"description\": \"CWE-476 NULL Pointer Dereference\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-10-01T15:46:37.292Z\"}}], \"cna\": {\"title\": \"PCI: endpoint: epf-mhi: Avoid NULL dereference if DT lacks \u0027mmio\u0027\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"1bf5f25324f7f6a52c3eb566ec5f78f6a901db96\", \"lessThan\": \"242ee2b0ad9b23f47084904fce3f9f228068a1f9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1bf5f25324f7f6a52c3eb566ec5f78f6a901db96\", \"lessThan\": \"c8b9d6b7d62a444e0bca5b9ae28f9f2b0f52feef\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1bf5f25324f7f6a52c3eb566ec5f78f6a901db96\", \"lessThan\": \"0e6d92e3b973de78eb7015154cf1197af9fac5c9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1bf5f25324f7f6a52c3eb566ec5f78f6a901db96\", \"lessThan\": \"5089b3d874e9933d9842e90410d3af1520494757\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/pci/endpoint/functions/pci-epf-mhi.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.5\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.5\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.6.64\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11.11\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/pci/endpoint/functions/pci-epf-mhi.c\"], \"defaultStatus\": \"affected\"}], \"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\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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]\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.64\", \"versionStartIncluding\": \"6.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.11\", \"versionStartIncluding\": \"6.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.2\", \"versionStartIncluding\": \"6.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13\", \"versionStartIncluding\": \"6.5\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:57:20.757Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-56689\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:57:20.757Z\", \"dateReserved\": \"2024-12-27T15:00:39.848Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-12-28T09:46:15.587Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.