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FKIE_CVE-2026-72153

Vulnerability from fkie_nvd - Published: 2026-08-15 06:21 - Updated: 2026-08-17 06:18
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: irqchip/crossbar: Use correct index in crossbar_domain_free() crossbar_domain_free() resets the domain data and then uses the nulled out irq_data->hwirq member as index to reset the irq_map[] entry and to write the relevant crossbar register with a safe entry. That means it never frees the correct index and keeps the crossbar register connection to the source interrupt active. If it would not reset the domain data, then this would be even worse as irq_data->hwirq holds the source interrupt number, but both the map and register index need the corresponding GIC SPI number and not the source interrupt number. This might even result in an out of bounds access as the source interrupt number can be higher than the maximal index space. Fix this by using the GIC SPI index from the parent domain's irq_data.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/043db005a8d6932dc7d217c86307e9af0bc10ddc
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/13bdb5140405ff283f9052e65ee1d5c2303765c7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1c48dc6a0c1ef47a9fa24611e60bc2f4ee4dd0df
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/36ca587f55a2c04468a89fd16174bb2f78dc04ec
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/424130169dc03b84ea604685409726d61bcec859
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cca649a23a5fc8aae536fc27a0546c67690a4078
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ccc3664679763d2d6f067c28729bdff627bb72d0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e5be5d452d5f1efbb3342da2b00029be6c99034e
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/irqchip/irq-crossbar.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "13bdb5140405ff283f9052e65ee1d5c2303765c7",
              "status": "affected",
              "version": "783d31863fb826f1a3754a2d5959a022a1b12d54",
              "versionType": "git"
            },
            {
              "lessThan": "1c48dc6a0c1ef47a9fa24611e60bc2f4ee4dd0df",
              "status": "affected",
              "version": "783d31863fb826f1a3754a2d5959a022a1b12d54",
              "versionType": "git"
            },
            {
              "lessThan": "ccc3664679763d2d6f067c28729bdff627bb72d0",
              "status": "affected",
              "version": "783d31863fb826f1a3754a2d5959a022a1b12d54",
              "versionType": "git"
            },
            {
              "lessThan": "424130169dc03b84ea604685409726d61bcec859",
              "status": "affected",
              "version": "783d31863fb826f1a3754a2d5959a022a1b12d54",
              "versionType": "git"
            },
            {
              "lessThan": "cca649a23a5fc8aae536fc27a0546c67690a4078",
              "status": "affected",
              "version": "783d31863fb826f1a3754a2d5959a022a1b12d54",
              "versionType": "git"
            },
            {
              "lessThan": "36ca587f55a2c04468a89fd16174bb2f78dc04ec",
              "status": "affected",
              "version": "783d31863fb826f1a3754a2d5959a022a1b12d54",
              "versionType": "git"
            },
            {
              "lessThan": "e5be5d452d5f1efbb3342da2b00029be6c99034e",
              "status": "affected",
              "version": "783d31863fb826f1a3754a2d5959a022a1b12d54",
              "versionType": "git"
            },
            {
              "lessThan": "043db005a8d6932dc7d217c86307e9af0bc10ddc",
              "status": "affected",
              "version": "783d31863fb826f1a3754a2d5959a022a1b12d54",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/irqchip/irq-crossbar.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.1"
            },
            {
              "lessThan": "4.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/crossbar: Use correct index in crossbar_domain_free()\n\ncrossbar_domain_free() resets the domain data and then uses the nulled\nout irq_data-\u003ehwirq member as index to reset the irq_map[] entry and to\nwrite the relevant crossbar register with a safe entry. That means it\nnever frees the correct index and keeps the crossbar register connection\nto the source interrupt active.\n\nIf it would not reset the domain data, then this would be even worse as\nirq_data-\u003ehwirq holds the source interrupt number, but both the map and\nregister index need the corresponding GIC SPI number and not the source\ninterrupt number. This might even result in an out of bounds access as\nthe source interrupt number can be higher than the maximal index space.\n\nFix this by using the GIC SPI index from the parent domain\u0027s irq_data."
    }
  ],
  "id": "CVE-2026-72153",
  "lastModified": "2026-08-17T06:18:15.497",
  "metrics": {},
  "published": "2026-08-15T06:21:33.030",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/043db005a8d6932dc7d217c86307e9af0bc10ddc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/13bdb5140405ff283f9052e65ee1d5c2303765c7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1c48dc6a0c1ef47a9fa24611e60bc2f4ee4dd0df"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/36ca587f55a2c04468a89fd16174bb2f78dc04ec"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/424130169dc03b84ea604685409726d61bcec859"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cca649a23a5fc8aae536fc27a0546c67690a4078"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ccc3664679763d2d6f067c28729bdff627bb72d0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e5be5d452d5f1efbb3342da2b00029be6c99034e"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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