CVE-2026-89454

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89454", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.707Z", "datePublished": "2026-09-11T19:43:18.717Z", "dateUpdated": "2026-10-19T08:47:03.777Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:47:03.777Z"}, "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->intx_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->intx_irq separately first.\n\nThis issue was found by automated review of sashiko-bot\n\n[mani: commit log]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/pci/controller/plda/pcie-plda-host.c"], "versions": [{"version": "4602c370bdf6946b4e954a3db0ef5958aac2b7b4", "lessThan": "01b05cebe1e862e31e382359848d7dca02525a4f", "status": "affected", "versionType": "git"}, {"version": "4602c370bdf6946b4e954a3db0ef5958aac2b7b4", "lessThan": "4b575052ea65423693726a21826d783cf3f1745e", "status": "affected", "versionType": "git"}, {"version": "4602c370bdf6946b4e954a3db0ef5958aac2b7b4", "lessThan": "e54e8d2a0f9c8bf251ae4385ea4f4a68840fedad", "status": "affected", "versionType": "git"}, {"version": "4602c370bdf6946b4e954a3db0ef5958aac2b7b4", "lessThan": "19a30bbb6477bfd7e3109b7a2943e6597ee9de37", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/pci/controller/plda/pcie-plda-host.c"], "versions": [{"version": "6.11", "status": "affected"}, {"version": "0", "lessThan": "6.11", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.109", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.50", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.4", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.12.109"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.18.50"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "7.2.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "7.3"}]}]}], "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"}}}}

{}

{"affected": [{"affectedData": [{"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": [{"lessThan": "01b05cebe1e862e31e382359848d7dca02525a4f", "status": "affected", "version": "4602c370bdf6946b4e954a3db0ef5958aac2b7b4", "versionType": "git"}, {"lessThan": "4b575052ea65423693726a21826d783cf3f1745e", "status": "affected", "version": "4602c370bdf6946b4e954a3db0ef5958aac2b7b4", "versionType": "git"}, {"lessThan": "e54e8d2a0f9c8bf251ae4385ea4f4a68840fedad", "status": "affected", "version": "4602c370bdf6946b4e954a3db0ef5958aac2b7b4", "versionType": "git"}, {"lessThan": "19a30bbb6477bfd7e3109b7a2943e6597ee9de37", "status": "affected", "version": "4602c370bdf6946b4e954a3db0ef5958aac2b7b4", "versionType": "git"}]}, {"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"}, {"lessThan": "6.11", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.109", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.50", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "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\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->intx_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->intx_irq separately first.\n\nThis issue was found by automated review of sashiko-bot\n\n[mani: commit log]"}], "id": "CVE-2026-89454", "lastModified": "2026-10-19T09:17:37.693", "metrics": {}, "published": "2026-09-11T20:19:26.097", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "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"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux Kernel: PCI PLDA driver resource leak via IRQ domain initialization failure", "id": "2532273", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532273"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["A flaw was found in the Linux kernel's PCI PLDA driver. This vulnerability occurs in the plda_init_interrupts() function, where Interrupt Request (IRQ) domains are not properly deinitialized if certain initialization steps fail. A local attacker could potentially exploit this resource leak, leading to system instability or a Denial of Service (DoS) over time due to unreleased IRQ resources."], "name": "CVE-2026-89454", "public_date": "2026-09-11T19:43:18Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-89454\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-89454\nhttps://git.kernel.org/stable/c/01b05cebe1e862e31e382359848d7dca02525a4f\nhttps://git.kernel.org/stable/c/19a30bbb6477bfd7e3109b7a2943e6597ee9de37\nhttps://git.kernel.org/stable/c/4b575052ea65423693726a21826d783cf3f1745e\nhttps://git.kernel.org/stable/c/e54e8d2a0f9c8bf251ae4385ea4f4a68840fedad"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4602c370bdf6946b4e954a3db0ef5958aac2b7b4,01b05cebe1e862e31e382359848d7dca02525a4f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4602c370bdf6946b4e954a3db0ef5958aac2b7b4,4b575052ea65423693726a21826d783cf3f1745e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4602c370bdf6946b4e954a3db0ef5958aac2b7b4,e54e8d2a0f9c8bf251ae4385ea4f4a68840fedad)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4602c370bdf6946b4e954a3db0ef5958aac2b7b4,19a30bbb6477bfd7e3109b7a2943e6597ee9de37)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.11"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.11)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.109,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.50,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.4,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-12T03:00:10.902815+00:00", "updated": "2026-09-21T01:30:08.755159+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}