{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-90121",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.787Z",
        "datePublished": "2026-09-17T16:06:25.253Z",
        "dateUpdated": "2026-10-19T08:58:19.637Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T08:58:19.637Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/gic-v5: Clear per-CPU IRS data on teardown\n\nIRS affinity setup publishes an IRS pointer and IAFFID state in the\nper-CPU data before the remaining IRS initialization can fail. The\nerror path then frees the IRS data without clearing that published\nstate, leaving CPUs associated with freed memory.\n\nOn initialization failure and normal IRS teardown, clear the per-CPU\nIRS association by removing the stale pointer to irs_data. Also\ninvalidate the per-CPU IAFFID state for any CPUs that were tied to the\nIRS before it was freed."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/irqchip/irq-gic-v5-irs.c"
                    ],
                    "versions": [
                        {
                            "version": "5cb1b6dab2def316671ea2565291a86ad58b884c",
                            "lessThan": "0887d41abf76638942688cb0c0ff8087f52e2b33",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5cb1b6dab2def316671ea2565291a86ad58b884c",
                            "lessThan": "54937af6f4a0d44c2852a203d457902f3264c906",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5cb1b6dab2def316671ea2565291a86ad58b884c",
                            "lessThan": "3dfc0ab5fefd052c6028c4632b1fad8bdaf7967e",
                            "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/irqchip/irq-gic-v5-irs.c"
                    ],
                    "versions": [
                        {
                            "version": "6.17",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.17",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.57",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "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": "6.17",
                                    "versionEndExcluding": "6.18.57"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.17",
                                    "versionEndExcluding": "7.2.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.17",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/0887d41abf76638942688cb0c0ff8087f52e2b33"
                },
                {
                    "url": "https://git.kernel.org/stable/c/54937af6f4a0d44c2852a203d457902f3264c906"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3dfc0ab5fefd052c6028c4632b1fad8bdaf7967e"
                }
            ],
            "title": "irqchip/gic-v5: Clear per-CPU IRS data on teardown",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}