ipvs: clear the svc scheduler ptr early on edit_CVE-2026-53270

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nipvs: clear the svc scheduler ptr early on edit\n\nip_vs_edit_service() while unbinding the old scheduler clears\nthe svc->scheduler ptr after the scheduler module initiates\nRCU callbacks. This can cause packets to use the old\nscheduler at the time when svc->sched_data is already freed\nafter RCU grace period.\n\nFix it by clearing the ptr early in ip_vs_unbind_scheduler(),\nbefore the done_service method schedules any RCU callbacks.\n\nAlso, if the new scheduler fails to initialize when replacing\nthe old scheduler, try to restore the old scheduler while still\nreturning the error code.",
    "published": "2026-06-25T08:39:55.830Z",
    "modified": "2026-06-28T06:41:14.263Z",
    "type": "cve",
    "title": "ipvs: clear the svc scheduler ptr early on edit",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/d10730a1f2caf08088e0db1b19b242f3e6fa5f06\nhttps://git.kernel.org/stable/c/e4feec3174036ba772006be74beee0efa09a9eb8\nhttps://git.kernel.org/stable/c/7d4f5004511757e3984901ffb412fcf858d80ed5\nhttps://git.kernel.org/stable/c/c6376b9b1b4d2bad638256b1b3588e073344ae69\nhttps://git.kernel.org/stable/c/14e4689c113b4c06af1069364ade24fdd7055f33\nhttps://git.kernel.org/stable/c/25918720ba97f974a4f8d433b5a0132c5b43f6f3\nhttps://git.kernel.org/stable/c/19a9493faa4bf3c7bd0a386f30b60b1bb4a3da03\nhttps://git.kernel.org/stable/c/193989cc6d80dd8e0460fb3992e69fa03bf0ff9b",
    "id": "CVE-2026-53270",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 05f00505a89acd21f5d0d20f5797dfbc4cf85243\nLinux Linux 05f00505a89acd21f5d0d20f5797dfbc4cf85243\nLinux Linux 05f00505a89acd21f5d0d20f5797dfbc4cf85243\nLinux Linux 05f00505a89acd21f5d0d20f5797dfbc4cf85243\nLinux Linux 05f00505a89acd21f5d0d20f5797dfbc4cf85243\nLinux Linux 05f00505a89acd21f5d0d20f5797dfbc4cf85243\nLinux Linux 05f00505a89acd21f5d0d20f5797dfbc4cf85243\nLinux Linux 05f00505a89acd21f5d0d20f5797dfbc4cf85243\nLinux Linux c803fddd2a95a70873c68dbff42d4c59fd2e674e\nLinux Linux 4ec8fb23158797affae7993c15beba080488482f\nLinux Linux 3.18.23\nLinux Linux 4.1.11\nLinux Linux 4.2",
    "sourceHref": "",
    "cvss": {
        "score": 7.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
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        "baseScore": 0,
        "baseSeverity": "",
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        "privilegesRequired": "",
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        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
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            "baseScore": 0,
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            "privilegesRequired": "",
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "05f00505a89acd21f5d0d20f5797dfbc4cf85243",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
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    "ai_score": 0
}