{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-97966",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:18:58.206Z",
        "datePublished": "2026-09-25T10:23:08.543Z",
        "dateUpdated": "2026-10-19T09:11:32.067Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:11:32.067Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: reset HTB scheduler topology before freeing queues\n\nHTB offload programs NIX_AF_TLxX_TOPOLOGY on QoS-allocated scheduler\nqueues via otx2_qos_txschq_set_parent_topology(), but teardown freed\nthose queues without clearing TOPOLOGY.  The AF only restores PARENT and\nSCHEDULE on free, so PRIO_ANCHOR/RR_PRIO settings can survive in the\nshared scheduler pool and affect later allocations.\n\nAdd otx2_qos_reset_schq_topology() and otx2_qos_free_hw_schq() to zero\nTL4 through TL2 TOPOLOGY before each schq is returned to the AF during\nhierarchy teardown and cfg rollback.  Skip the aggregation level (TL1):\nit is a per-tx-link queue shared by the PF, default Tx hierarchy and VFs,\nand is not freed back to the AF by nix_txschq_free_one()."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/marvell/octeontx2/nic/qos.c"
                    ],
                    "versions": [
                        {
                            "version": "5e6808b4c68d7882971514ab3279926eb07c8b2d",
                            "lessThan": "16c5c8ea5017952ff14c87626a45359d195dda6f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5e6808b4c68d7882971514ab3279926eb07c8b2d",
                            "lessThan": "0aa2dd6eaa347c7aab448df0eec0afcfe7489885",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5e6808b4c68d7882971514ab3279926eb07c8b2d",
                            "lessThan": "621c99be42e3f5cb68a6af9480a255218a761c4e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5e6808b4c68d7882971514ab3279926eb07c8b2d",
                            "lessThan": "2df186418e17b30b319cf9ff81aad137692ab107",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5e6808b4c68d7882971514ab3279926eb07c8b2d",
                            "lessThan": "ef39fca8508597fa565cf2be72a884a712fb98af",
                            "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/net/ethernet/marvell/octeontx2/nic/qos.c"
                    ],
                    "versions": [
                        {
                            "version": "6.5",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.5",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.158",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.111",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.53",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.7",
                            "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": "6.5",
                                    "versionEndExcluding": "6.6.158"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.5",
                                    "versionEndExcluding": "6.12.111"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.5",
                                    "versionEndExcluding": "6.18.53"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.5",
                                    "versionEndExcluding": "7.2.7"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.5",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/16c5c8ea5017952ff14c87626a45359d195dda6f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0aa2dd6eaa347c7aab448df0eec0afcfe7489885"
                },
                {
                    "url": "https://git.kernel.org/stable/c/621c99be42e3f5cb68a6af9480a255218a761c4e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2df186418e17b30b319cf9ff81aad137692ab107"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ef39fca8508597fa565cf2be72a884a712fb98af"
                }
            ],
            "title": "octeontx2-pf: reset HTB scheduler topology before freeing queues",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}