Vulnerability-Lookup

GHSA-HFHW-J953-VCQ4

Vulnerability from github – Published: 2026-07-19 18:31 – Updated: 2026-07-19 18:31

Details

In the Linux kernel, the following vulnerability has been resolved:

firmware: arm_ffa: Check for NULL FF-A ID table while driver registration

The bus match callback assumes that every FF-A driver provides an id_table and dereferences it unconditionally. Enforce that contract at registration time so a buggy client driver cannot crash the bus during match.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-64166"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-19T16:17:58Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_ffa: Check for NULL FF-A ID table while driver registration\n\nThe bus match callback assumes that every FF-A driver provides an\nid_table and dereferences it unconditionally. Enforce that contract at\nregistration time so a buggy client driver cannot crash the bus during\nmatch.",
  "id": "GHSA-hfhw-j953-vcq4",
  "modified": "2026-07-19T18:31:54Z",
  "published": "2026-07-19T18:31:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64166"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0a5e695095c557d2380131b613dea4e8d90371be"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/198f6c86d508ed562f07dc00276cac6dbb5dd3bf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/34f59211984f66788390e7469f3e99d3796db4a8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/820245d86ce58898fb48b4fefc77d0cafc02801d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/adfff93d08a2e12ecf2a1eba272d18bc749f13c0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bc499d1acddbb75b5b4bce05f5296dd8ef9611fd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f98f131256beaddd51ad468e95d90d857fef12bf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-64166 (GCVE-0-2026-64166)

Vulnerability from cvelistv5 – Published: 2026-07-19 15:40 – Updated: 2026-07-19 15:40

Title

firmware: arm_ffa: Check for NULL FF-A ID table while driver registration

Summary

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Check for NULL FF-A ID table while driver registration The bus match callback assumes that every FF-A driver provides an id_table and dereferences it unconditionally. Enforce that contract at registration time so a buggy client driver cannot crash the bus during match.

Severity

No CVSS data available.

Assigner

Linux

References

7 references

URL	Tags
https://git.kernel.org/stable/c/f98f131256beaddd5…
https://git.kernel.org/stable/c/bc499d1acddbb75b5…
https://git.kernel.org/stable/c/adfff93d08a2e12ec…
https://git.kernel.org/stable/c/34f59211984f66788…
https://git.kernel.org/stable/c/820245d86ce58898f…
https://git.kernel.org/stable/c/198f6c86d508ed562…
https://git.kernel.org/stable/c/0a5e695095c557d23…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 92743071464fca5acbbe812d9a0d88de3eaaad36 , < f98f131256beaddd51ad468e95d90d857fef12bf (git) Affected: 92743071464fca5acbbe812d9a0d88de3eaaad36 , < bc499d1acddbb75b5b4bce05f5296dd8ef9611fd (git) Affected: 92743071464fca5acbbe812d9a0d88de3eaaad36 , < adfff93d08a2e12ecf2a1eba272d18bc749f13c0 (git) Affected: 92743071464fca5acbbe812d9a0d88de3eaaad36 , < 34f59211984f66788390e7469f3e99d3796db4a8 (git) Affected: 92743071464fca5acbbe812d9a0d88de3eaaad36 , < 820245d86ce58898fb48b4fefc77d0cafc02801d (git) Affected: 92743071464fca5acbbe812d9a0d88de3eaaad36 , < 198f6c86d508ed562f07dc00276cac6dbb5dd3bf (git) Affected: 92743071464fca5acbbe812d9a0d88de3eaaad36 , < 0a5e695095c557d2380131b613dea4e8d90371be (git)
Linux	Linux	Affected: 5.14 Unaffected: 0 , < 5.14 (semver) Unaffected: 5.15.209 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.142 , ≤ 6.6.* (semver) Unaffected: 6.12.92 , ≤ 6.12.* (semver) Unaffected: 6.18.34 , ≤ 6.18.* (semver) Unaffected: 7.0.11 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/firmware/arm_ffa/bus.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
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              "versionType": "git"
            },
            {
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            },
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            },
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              "versionType": "git"
            },
            {
              "lessThan": "0a5e695095c557d2380131b613dea4e8d90371be",
              "status": "affected",
              "version": "92743071464fca5acbbe812d9a0d88de3eaaad36",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/firmware/arm_ffa/bus.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.14"
            },
            {
              "lessThan": "5.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.142",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.92",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.34",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
                },
                {
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                },
                {
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                },
                {
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                },
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_ffa: Check for NULL FF-A ID table while driver registration\n\nThe bus match callback assumes that every FF-A driver provides an\nid_table and dereferences it unconditionally. Enforce that contract at\nregistration time so a buggy client driver cannot crash the bus during\nmatch."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-19T15:40:51.305Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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        },
        {
          "url": "https://git.kernel.org/stable/c/bc499d1acddbb75b5b4bce05f5296dd8ef9611fd"
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          "url": "https://git.kernel.org/stable/c/adfff93d08a2e12ecf2a1eba272d18bc749f13c0"
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        },
        {
          "url": "https://git.kernel.org/stable/c/0a5e695095c557d2380131b613dea4e8d90371be"
        }
      ],
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  "cveMetadata": {
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    "assignerShortName": "Linux",
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    "datePublished": "2026-07-19T15:40:51.305Z",
    "dateReserved": "2026-07-19T07:54:57.038Z",
    "dateUpdated": "2026-07-19T15:40:51.305Z",
    "state": "PUBLISHED"
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}

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.

Action not permitted

GHSA-HFHW-J953-VCQ4

CVE-2026-64166 (GCVE-0-2026-64166)

Tags

Sightings

Nomenclature