{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-97963",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:18:58.206Z",
        "datePublished": "2026-09-25T10:23:06.749Z",
        "dateUpdated": "2026-10-19T09:11:29.173Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:11:29.173Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: stmmac: initialize ptp_lock at probe time\n\npriv->ptp_lock is only initialized in stmmac_ptp_register(), which runs\nduring __stmmac_open(). However, the lock is also used while the\ninterface is down and has never been opened: tc_taprio_configure()\ninvokes the PTP gettime64() callback to compute the EST base time when\noffloading a TAPRIO schedule, and stmmac_get_time() takes\npriv->ptp_lock. Using an uninitialized rwlock is undefined behaviour.\nMove the rwlock_init() to __stmmac_dvr_probe(), together with the other\nprivate locks, so that ptp_lock is always valid regardless of the\ninterface state."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/stmicro/stmmac/stmmac_main.c",
                        "drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c"
                    ],
                    "versions": [
                        {
                            "version": "b60189e0392fa06348911077ef281eb2b1047b6a",
                            "lessThan": "ee33e424d4932c70f103b94a46b685923f236f65",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b60189e0392fa06348911077ef281eb2b1047b6a",
                            "lessThan": "7ced87834f3a58761d4bbcabf8326478548e6a54",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b60189e0392fa06348911077ef281eb2b1047b6a",
                            "lessThan": "79fb5bcc50996964e076dffbdc24b7d2c06bd957",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b60189e0392fa06348911077ef281eb2b1047b6a",
                            "lessThan": "420315413b29635de1d4ea4142e410e6465260f3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b60189e0392fa06348911077ef281eb2b1047b6a",
                            "lessThan": "25cc0096efba83b4e0e6fa50f03e9543b41e9d3d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b60189e0392fa06348911077ef281eb2b1047b6a",
                            "lessThan": "b1986595cf827c38ff929e22fbc9ca8f76379306",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b60189e0392fa06348911077ef281eb2b1047b6a",
                            "lessThan": "0338c68e22abd2ee509ec2e32508a50896618c32",
                            "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/stmicro/stmmac/stmmac_main.c",
                        "drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c"
                    ],
                    "versions": [
                        {
                            "version": "5.6",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.6",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.222",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.189",
                            "lessThanOrEqual": "6.1.*",
                            "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": "5.6",
                                    "versionEndExcluding": "5.15.222"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.6",
                                    "versionEndExcluding": "6.1.189"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.6",
                                    "versionEndExcluding": "6.6.158"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.6",
                                    "versionEndExcluding": "6.12.111"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.6",
                                    "versionEndExcluding": "6.18.53"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.6",
                                    "versionEndExcluding": "7.2.7"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.6",
                                    "versionEndExcluding": "7.3"
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                            ]
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                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/ee33e424d4932c70f103b94a46b685923f236f65"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7ced87834f3a58761d4bbcabf8326478548e6a54"
                },
                {
                    "url": "https://git.kernel.org/stable/c/79fb5bcc50996964e076dffbdc24b7d2c06bd957"
                },
                {
                    "url": "https://git.kernel.org/stable/c/420315413b29635de1d4ea4142e410e6465260f3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/25cc0096efba83b4e0e6fa50f03e9543b41e9d3d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b1986595cf827c38ff929e22fbc9ca8f76379306"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0338c68e22abd2ee509ec2e32508a50896618c32"
                }
            ],
            "title": "net: stmmac: initialize ptp_lock at probe time",
            "x_generator": {
                "engine": "bippy-1.2.0"
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    }
}