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CVE-2026-89454 (GCVE-0-2026-89454)

Vulnerability from cvelistv5 – Published: 2026-09-11 19:43 – Updated: 2026-09-11 19:43
VLAI
Title
PCI: plda: Fix IRQ domain leaks in the error paths of plda_init_interrupts()
Summary
In the Linux kernel, the following vulnerability has been resolved: PCI: plda: Fix IRQ domain leaks in the error paths of plda_init_interrupts() plda_init_interrupts() initializes IRQ domains and creates IRQ mapping but does not unwind them when later step fails. If platform_get_irq() or either irq_create_mapping() fails in plda_init_interrupts(), the domains are never deinitialized. If irq_create_mapping() fails, port->intx_irq stays initialized. Hence, remove the IRQ domains in the error path by calling plda_pcie_irq_domain_deinit(). Since plda_pcie_irq_domain_deinit() now disposes of the intx_irq and msi_irq mappings itself before removing their domains, the msi_irq mapping failure path can go directly to err_irq_domain_deinit instead of disposing of port->intx_irq separately first. This issue was found by automated review of sashiko-bot [mani: commit log]
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 4602c370bdf6946b4e954a3db0ef5958aac2b7b4 , < 01b05cebe1e862e31e382359848d7dca02525a4f (git)
Affected: 4602c370bdf6946b4e954a3db0ef5958aac2b7b4 , < 4b575052ea65423693726a21826d783cf3f1745e (git)
Affected: 4602c370bdf6946b4e954a3db0ef5958aac2b7b4 , < e54e8d2a0f9c8bf251ae4385ea4f4a68840fedad (git)
Affected: 4602c370bdf6946b4e954a3db0ef5958aac2b7b4 , < 19a30bbb6477bfd7e3109b7a2943e6597ee9de37 (git)
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Linux Linux Affected: 6.11
Unaffected: 0 , < 6.11 (semver)
Unaffected: 6.12.109 , ≤ 6.12.* (semver)
Unaffected: 6.18.50 , ≤ 6.18.* (semver)
Unaffected: 7.2.4 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/pci/controller/plda/pcie-plda-host.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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              "versionType": "git"
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              "versionType": "git"
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        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/pci/controller/plda/pcie-plda-host.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.11"
            },
            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "version": "6.12.109",
              "versionType": "semver"
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            {
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              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.109",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.50",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.4",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: plda: Fix IRQ domain leaks in the error paths of plda_init_interrupts()\n\nplda_init_interrupts() initializes IRQ domains and creates IRQ mapping but\ndoes not unwind them when later step fails.\n\nIf platform_get_irq() or either irq_create_mapping() fails\nin plda_init_interrupts(), the domains are never deinitialized. If\nirq_create_mapping() fails, port-\u003eintx_irq stays initialized.\n\nHence, remove the IRQ domains in the error path by calling\nplda_pcie_irq_domain_deinit().\n\nSince plda_pcie_irq_domain_deinit() now disposes of the intx_irq and\nmsi_irq mappings itself before removing their domains, the msi_irq\nmapping failure path can go directly to err_irq_domain_deinit instead of\ndisposing of port-\u003eintx_irq separately first.\n\nThis issue was found by automated review of sashiko-bot\n\n[mani: commit log]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-11T19:43:18.717Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/01b05cebe1e862e31e382359848d7dca02525a4f"
        },
        {
          "url": "https://git.kernel.org/stable/c/4b575052ea65423693726a21826d783cf3f1745e"
        },
        {
          "url": "https://git.kernel.org/stable/c/e54e8d2a0f9c8bf251ae4385ea4f4a68840fedad"
        },
        {
          "url": "https://git.kernel.org/stable/c/19a30bbb6477bfd7e3109b7a2943e6597ee9de37"
        }
      ],
      "title": "PCI: plda: Fix IRQ domain leaks in the error paths of plda_init_interrupts()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89454",
    "datePublished": "2026-09-11T19:43:18.717Z",
    "dateReserved": "2026-09-11T19:38:34.707Z",
    "dateUpdated": "2026-09-11T19:43:18.717Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-89454",
      "date": "2026-09-16",
      "epss": "0.002",
      "percentile": "0.10042"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-89454\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-09-11T20:19:26.097\",\"lastModified\":\"2026-09-11T20:19:26.097\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nPCI: plda: Fix IRQ domain leaks in the error paths of plda_init_interrupts()\\n\\nplda_init_interrupts() initializes IRQ domains and creates IRQ mapping but\\ndoes not unwind them when later step fails.\\n\\nIf platform_get_irq() or either irq_create_mapping() fails\\nin plda_init_interrupts(), the domains are never deinitialized. If\\nirq_create_mapping() fails, port-\u003eintx_irq stays initialized.\\n\\nHence, remove the IRQ domains in the error path by calling\\nplda_pcie_irq_domain_deinit().\\n\\nSince plda_pcie_irq_domain_deinit() now disposes of the intx_irq and\\nmsi_irq mappings itself before removing their domains, the msi_irq\\nmapping failure path can go directly to err_irq_domain_deinit instead of\\ndisposing of port-\u003eintx_irq separately first.\\n\\nThis issue was found by automated review of sashiko-bot\\n\\n[mani: commit log]\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/pci/controller/plda/pcie-plda-host.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4602c370bdf6946b4e954a3db0ef5958aac2b7b4\",\"lessThan\":\"01b05cebe1e862e31e382359848d7dca02525a4f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4602c370bdf6946b4e954a3db0ef5958aac2b7b4\",\"lessThan\":\"4b575052ea65423693726a21826d783cf3f1745e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4602c370bdf6946b4e954a3db0ef5958aac2b7b4\",\"lessThan\":\"e54e8d2a0f9c8bf251ae4385ea4f4a68840fedad\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4602c370bdf6946b4e954a3db0ef5958aac2b7b4\",\"lessThan\":\"19a30bbb6477bfd7e3109b7a2943e6597ee9de37\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/pci/controller/plda/pcie-plda-host.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.11\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.11\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.109\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.50\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2.4\",\"lessThanOrEqual\":\"7.2.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.3-rc1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/01b05cebe1e862e31e382359848d7dca02525a4f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/19a30bbb6477bfd7e3109b7a2943e6597ee9de37\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4b575052ea65423693726a21826d783cf3f1745e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e54e8d2a0f9c8bf251ae4385ea4f4a68840fedad\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-09-15T05:02:59+00:00",
      "cve": "CVE-2026-89454",
      "id": "CVE-2026-89454",
      "initial_release_date": "2026-09-11T19:43:18.717000+00:00",
      "product_status:known_affected": "2",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux Kernel: PCI PLDA driver resource leak via IRQ domain initialization failure",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89454.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-09-16T00:03:35Z",
      "cve": "CVE-2026-89454",
      "id": "CVE-2026-89454",
      "initial_release_date": "2026-09-12T16:28:12Z",
      "product_status:known_not_affected": "353",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-89454",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-89454.json",
      "version": "3"
    }
  }
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.