btrfs: fix double free in create_space_info() error path_CVE-2026-46129

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix double free in create_space_info() error path\n\nWhen kobject_init_and_add() fails, the call chain is:\n\ncreate_space_info()\n-> btrfs_sysfs_add_space_info_type()\n-> kobject_init_and_add()\n-> failure\n-> kobject_put(&space_info->kobj)\n-> space_info_release()\n-> kfree(space_info)\n\nThen control returns to create_space_info():\n\nbtrfs_sysfs_add_space_info_type() returns error\n-> goto out_free\n-> kfree(space_info)\n\nThis causes a double free.\n\nKeep the direct kfree(space_info) for the earlier failure path, but\nafter btrfs_sysfs_add_space_info_type() has called kobject_put(), let\nthe kobject release callback handle the cleanup.",
    "published": "2026-05-28T09:35:44.271Z",
    "modified": "2026-05-30T10:48:07.941Z",
    "type": "cve",
    "title": "btrfs: fix double free in create_space_info() error path",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/c2670ec4aa49ca226bce9776601e0da37502be07\nhttps://git.kernel.org/stable/c/f414b3abbba59ef379a2b3c31f2bdd9358ed5e53\nhttps://git.kernel.org/stable/c/9a060970fd7b5e1c561e4ce73cb9949e4269a738\nhttps://git.kernel.org/stable/c/dd6ade0fdd59218d71a981ae7c937a304e49209c\nhttps://git.kernel.org/stable/c/3f487be81292702a59ea9dbc4088b3360a50e837",
    "id": "CVE-2026-46129",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 58208907c4044a764dbd8896026283905da6d9be\nLinux Linux bb4fa4c0b54aae25e55faeda7f78d0c11b8cd618\nLinux Linux 6cb008f1bb23e023dfe615cca5df14570dfc8da5\nLinux Linux a11224a016d6d1d46a4d9b6573244448a80d4d7f\nLinux Linux a11224a016d6d1d46a4d9b6573244448a80d4d7f\nLinux Linux 20e8f2de3688082eeafeb93c8900485b7542457e\nLinux Linux 6.6.122\nLinux Linux 6.12.67\nLinux Linux 6.18.7\nLinux Linux 6.1.162\nLinux Linux 6.19",
    "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": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
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            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "58208907c4044a764dbd8896026283905da6d9be",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}