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CERTFR-2025-AVI-0721
Vulnerability from certfr_avis - Published: 2025-08-22 - Updated: 2025-08-22
De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire, une atteinte à la confidentialité des données et une atteinte à l'intégrité des données.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
References
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{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Ubuntu 20.04 ESM",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 24.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 18.04 ESM",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 22.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2025-21861",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21861"
},
{
"name": "CVE-2024-58088",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-58088"
},
{
"name": "CVE-2025-38043",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38043"
},
{
"name": "CVE-2025-21783",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21783"
},
{
"name": "CVE-2025-21786",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21786"
},
{
"name": "CVE-2025-38002",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38002"
},
{
"name": "CVE-2025-21847",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21847"
},
{
"name": "CVE-2025-21853",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21853"
},
{
"name": "CVE-2025-21871",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21871"
},
{
"name": "CVE-2025-21823",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21823"
},
{
"name": "CVE-2025-21763",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21763"
},
{
"name": "CVE-2025-37965",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37965"
},
{
"name": "CVE-2025-21796",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21796"
},
{
"name": "CVE-2024-49950",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49950"
},
{
"name": "CVE-2025-21768",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21768"
},
{
"name": "CVE-2025-21864",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21864"
},
{
"name": "CVE-2025-37961",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37961"
},
{
"name": "CVE-2025-38061",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38061"
},
{
"name": "CVE-2025-21839",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21839"
},
{
"name": "CVE-2025-38023",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38023"
},
{
"name": "CVE-2025-21779",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21779"
},
{
"name": "CVE-2025-38004",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38004"
},
{
"name": "CVE-2025-38016",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38016"
},
{
"name": "CVE-2025-21712",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21712"
},
{
"name": "CVE-2025-21746",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21746"
},
{
"name": "CVE-2025-38066",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38066"
},
{
"name": "CVE-2025-21836",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21836"
},
{
"name": "CVE-2025-21781",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21781"
},
{
"name": "CVE-2025-38022",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38022"
},
{
"name": "CVE-2025-38068",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38068"
},
{
"name": "CVE-2025-21772",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21772"
},
{
"name": "CVE-2025-37971",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37971"
},
{
"name": "CVE-2025-21868",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21868"
},
{
"name": "CVE-2025-38056",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38056"
},
{
"name": "CVE-2025-38027",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38027"
},
{
"name": "CVE-2025-21792",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21792"
},
{
"name": "CVE-2025-37993",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37993"
},
{
"name": "CVE-2025-37955",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37955"
},
{
"name": "CVE-2025-38015",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38015"
},
{
"name": "CVE-2025-37958",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37958"
},
{
"name": "CVE-2025-21855",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21855"
},
{
"name": "CVE-2025-38065",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38065"
},
{
"name": "CVE-2025-38031",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38031"
},
{
"name": "CVE-2025-37950",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37950"
},
{
"name": "CVE-2025-21767",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21767"
},
{
"name": "CVE-2025-38008",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38008"
},
{
"name": "CVE-2025-38011",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38011"
},
{
"name": "CVE-2025-21764",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21764"
},
{
"name": "CVE-2024-58093",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-58093"
},
{
"name": "CVE-2025-38025",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38025"
},
{
"name": "CVE-2025-38034",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38034"
},
{
"name": "CVE-2025-38095",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38095"
},
{
"name": "CVE-2025-21838",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21838"
},
{
"name": "CVE-2025-21867",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21867"
},
{
"name": "CVE-2025-21704",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21704"
},
{
"name": "CVE-2025-21766",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21766"
},
{
"name": "CVE-2025-38024",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38024"
},
{
"name": "CVE-2024-57834",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-57834"
},
{
"name": "CVE-2025-38078",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38078"
},
{
"name": "CVE-2025-21791",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21791"
},
{
"name": "CVE-2024-52559",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-52559"
},
{
"name": "CVE-2025-38077",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38077"
},
{
"name": "CVE-2025-38005",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38005"
},
{
"name": "CVE-2025-21795",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21795"
},
{
"name": "CVE-2025-21758",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21758"
},
{
"name": "CVE-2025-21780",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21780"
},
{
"name": "CVE-2025-37969",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37969"
},
{
"name": "CVE-2025-21787",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21787"
},
{
"name": "CVE-2025-21776",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21776"
},
{
"name": "CVE-2025-21706",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21706"
},
{
"name": "CVE-2025-38014",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38014"
},
{
"name": "CVE-2025-38003",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38003"
},
{
"name": "CVE-2025-38007",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38007"
},
{
"name": "CVE-2025-21760",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21760"
},
{
"name": "CVE-2025-38079",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38079"
},
{
"name": "CVE-2025-37964",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37964"
},
{
"name": "CVE-2025-21785",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21785"
},
{
"name": "CVE-2024-58086",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-58086"
},
{
"name": "CVE-2025-37999",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37999"
},
{
"name": "CVE-2025-38018",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38018"
},
{
"name": "CVE-2025-21857",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21857"
},
{
"name": "CVE-2025-37797",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37797"
},
{
"name": "CVE-2025-21848",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21848"
},
{
"name": "CVE-2025-37952",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37952"
},
{
"name": "CVE-2025-38012",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38012"
},
{
"name": "CVE-2025-38019",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38019"
},
{
"name": "CVE-2025-21866",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21866"
},
{
"name": "CVE-2025-38037",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38037"
},
{
"name": "CVE-2025-37962",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37962"
},
{
"name": "CVE-2025-21862",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21862"
},
{
"name": "CVE-2025-37972",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37972"
},
{
"name": "CVE-2025-38010",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38010"
},
{
"name": "CVE-2024-57977",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-57977"
},
{
"name": "CVE-2025-37970",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37970"
},
{
"name": "CVE-2025-38013",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38013"
},
{
"name": "CVE-2025-37956",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37956"
},
{
"name": "CVE-2025-38094",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38094"
},
{
"name": "CVE-2025-38072",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38072"
},
{
"name": "CVE-2025-37967",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37967"
},
{
"name": "CVE-2025-38075",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38075"
},
{
"name": "CVE-2025-37949",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37949"
},
{
"name": "CVE-2025-37957",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37957"
},
{
"name": "CVE-2025-38058",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38058"
},
{
"name": "CVE-2025-21762",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21762"
},
{
"name": "CVE-2025-38083",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38083"
},
{
"name": "CVE-2025-21869",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21869"
},
{
"name": "CVE-2024-54458",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-54458"
},
{
"name": "CVE-2025-37951",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37951"
},
{
"name": "CVE-2025-37947",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37947"
},
{
"name": "CVE-2025-21859",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21859"
},
{
"name": "CVE-2025-21761",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21761"
},
{
"name": "CVE-2025-37992",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37992"
},
{
"name": "CVE-2025-21844",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21844"
},
{
"name": "CVE-2025-21784",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21784"
},
{
"name": "CVE-2024-58020",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-58020"
},
{
"name": "CVE-2025-37973",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37973"
},
{
"name": "CVE-2025-37996",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37996"
},
{
"name": "CVE-2025-21775",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21775"
},
{
"name": "CVE-2025-21846",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21846"
},
{
"name": "CVE-2025-37998",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37998"
},
{
"name": "CVE-2025-37968",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37968"
},
{
"name": "CVE-2025-38006",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38006"
},
{
"name": "CVE-2025-38048",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38048"
},
{
"name": "CVE-2025-21765",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21765"
},
{
"name": "CVE-2025-21782",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21782"
},
{
"name": "CVE-2025-38009",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38009"
},
{
"name": "CVE-2025-21870",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21870"
},
{
"name": "CVE-2024-54456",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-54456"
},
{
"name": "CVE-2024-38541",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-38541"
},
{
"name": "CVE-2025-37994",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37994"
},
{
"name": "CVE-2025-21773",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21773"
},
{
"name": "CVE-2025-21858",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21858"
},
{
"name": "CVE-2025-37995",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37995"
},
{
"name": "CVE-2025-21821",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21821"
},
{
"name": "CVE-2025-38052",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38052"
},
{
"name": "CVE-2025-38035",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38035"
},
{
"name": "CVE-2025-37963",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37963"
},
{
"name": "CVE-2024-50073",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50073"
},
{
"name": "CVE-2025-37948",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37948"
},
{
"name": "CVE-2025-21863",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21863"
},
{
"name": "CVE-2025-21856",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21856"
},
{
"name": "CVE-2025-37960",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37960"
},
{
"name": "CVE-2025-38051",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38051"
},
{
"name": "CVE-2025-37954",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37954"
},
{
"name": "CVE-2025-38044",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38044"
},
{
"name": "CVE-2025-37959",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37959"
},
{
"name": "CVE-2025-21793",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21793"
},
{
"name": "CVE-2025-21854",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21854"
},
{
"name": "CVE-2023-52757",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52757"
},
{
"name": "CVE-2025-21759",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21759"
},
{
"name": "CVE-2023-52975",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52975"
},
{
"name": "CVE-2025-37966",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37966"
},
{
"name": "CVE-2025-38028",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38028"
},
{
"name": "CVE-2025-21790",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21790"
},
{
"name": "CVE-2025-38020",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38020"
},
{
"name": "CVE-2025-21835",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21835"
},
{
"name": "CVE-2025-38021",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38021"
}
],
"initial_release_date": "2025-08-22T00:00:00",
"last_revision_date": "2025-08-22T00:00:00",
"links": [],
"reference": "CERTFR-2025-AVI-0721",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2025-08-22T00:00:00.000000"
}
],
"risks": [
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"description": "Ex\u00e9cution de code arbitraire"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "D\u00e9ni de service"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le noyau Linux d\u0027Ubuntu. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et une atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux d\u0027Ubuntu",
"vendor_advisories": [
{
"published_at": "2025-08-20",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7704-1",
"url": "https://ubuntu.com/security/notices/USN-7704-1"
},
{
"published_at": "2025-08-19",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7703-1",
"url": "https://ubuntu.com/security/notices/USN-7703-1"
},
{
"published_at": "2025-08-21",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7704-4",
"url": "https://ubuntu.com/security/notices/USN-7704-4"
},
{
"published_at": "2025-08-20",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7704-3",
"url": "https://ubuntu.com/security/notices/USN-7704-3"
},
{
"published_at": "2025-08-21",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7701-3",
"url": "https://ubuntu.com/security/notices/USN-7701-3"
},
{
"published_at": "2025-08-20",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7682-6",
"url": "https://ubuntu.com/security/notices/USN-7682-6"
},
{
"published_at": "2025-08-20",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7703-2",
"url": "https://ubuntu.com/security/notices/USN-7703-2"
},
{
"published_at": "2025-08-21",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7703-3",
"url": "https://ubuntu.com/security/notices/USN-7703-3"
},
{
"published_at": "2025-08-19",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7701-1",
"url": "https://ubuntu.com/security/notices/USN-7701-1"
},
{
"published_at": "2025-08-19",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7704-2",
"url": "https://ubuntu.com/security/notices/USN-7704-2"
},
{
"published_at": "2025-08-20",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7699-2",
"url": "https://ubuntu.com/security/notices/USN-7699-2"
},
{
"published_at": "2025-08-20",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7701-2",
"url": "https://ubuntu.com/security/notices/USN-7701-2"
}
]
}
CVE-2025-21786 (GCVE-0-2025-21786)
Vulnerability from cvelistv5 – Published: 2025-02-27 02:18 – Updated: 2026-05-11 21:06
VLAI
EPSS
Title
workqueue: Put the pwq after detaching the rescuer from the pool
Summary
In the Linux kernel, the following vulnerability has been resolved:
workqueue: Put the pwq after detaching the rescuer from the pool
The commit 68f83057b913("workqueue: Reap workers via kthread_stop() and
remove detach_completion") adds code to reap the normal workers but
mistakenly does not handle the rescuer and also removes the code waiting
for the rescuer in put_unbound_pool(), which caused a use-after-free bug
reported by Cheung Wall.
To avoid the use-after-free bug, the pool’s reference must be held until
the detachment is complete. Therefore, move the code that puts the pwq
after detaching the rescuer from the pool.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
68f83057b913467a999e1bf9e0da6a119668f769 , < e7c16028a424dd35be1064a68fa318be4359310f
(git)
Affected: 68f83057b913467a999e1bf9e0da6a119668f769 , < 835b69c868f53f959d4986bbecd561ba6f38e492 (git) Affected: 68f83057b913467a999e1bf9e0da6a119668f769 , < e76946110137703c16423baf6ee177b751a34b7e (git) |
|
| Linux | Linux |
Affected:
6.11
Unaffected: 0 , < 6.11 (semver) Unaffected: 6.12.16 , ≤ 6.12.* (semver) Unaffected: 6.13.4 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix) |
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CVE-2025-21787 (GCVE-0-2025-21787)
Vulnerability from cvelistv5 – Published: 2025-02-27 02:18 – Updated: 2026-05-12 12:03
VLAI
EPSS
Title
team: better TEAM_OPTION_TYPE_STRING validation
Summary
In the Linux kernel, the following vulnerability has been resolved:
team: better TEAM_OPTION_TYPE_STRING validation
syzbot reported following splat [1]
Make sure user-provided data contains one nul byte.
[1]
BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:633 [inline]
BUG: KMSAN: uninit-value in string+0x3ec/0x5f0 lib/vsprintf.c:714
string_nocheck lib/vsprintf.c:633 [inline]
string+0x3ec/0x5f0 lib/vsprintf.c:714
vsnprintf+0xa5d/0x1960 lib/vsprintf.c:2843
__request_module+0x252/0x9f0 kernel/module/kmod.c:149
team_mode_get drivers/net/team/team_core.c:480 [inline]
team_change_mode drivers/net/team/team_core.c:607 [inline]
team_mode_option_set+0x437/0x970 drivers/net/team/team_core.c:1401
team_option_set drivers/net/team/team_core.c:375 [inline]
team_nl_options_set_doit+0x1339/0x1f90 drivers/net/team/team_core.c:2662
genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]
genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
genl_rcv_msg+0x1214/0x12c0 net/netlink/genetlink.c:1210
netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2543
genl_rcv+0x40/0x60 net/netlink/genetlink.c:1219
netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline]
netlink_unicast+0xf52/0x1260 net/netlink/af_netlink.c:1348
netlink_sendmsg+0x10da/0x11e0 net/netlink/af_netlink.c:1892
sock_sendmsg_nosec net/socket.c:718 [inline]
__sock_sendmsg+0x30f/0x380 net/socket.c:733
____sys_sendmsg+0x877/0xb60 net/socket.c:2573
___sys_sendmsg+0x28d/0x3c0 net/socket.c:2627
__sys_sendmsg net/socket.c:2659 [inline]
__do_sys_sendmsg net/socket.c:2664 [inline]
__se_sys_sendmsg net/socket.c:2662 [inline]
__x64_sys_sendmsg+0x212/0x3c0 net/socket.c:2662
x64_sys_call+0x2ed6/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:47
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Severity
No CVSS data available.
Assigner
References
11 references
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
3d249d4ca7d0ed6629a135ea1ea21c72286c0d80 , < 7c30483d0f6bdb2230e10e3e4be5167927eac7a0
(git)
Affected: 3d249d4ca7d0ed6629a135ea1ea21c72286c0d80 , < 7f5af50f3aa0af8cbef9fb76fffeed69e8143f59 (git) Affected: 3d249d4ca7d0ed6629a135ea1ea21c72286c0d80 , < f443687ad20c70320d1248f35f57bf46cac8df0a (git) Affected: 3d249d4ca7d0ed6629a135ea1ea21c72286c0d80 , < 4512482e4805dd30bc77dec511f2a2edba5cb868 (git) Affected: 3d249d4ca7d0ed6629a135ea1ea21c72286c0d80 , < d071a91fa614ecdf760c29f61f6a7bfb7df796d6 (git) Affected: 3d249d4ca7d0ed6629a135ea1ea21c72286c0d80 , < 4236bf4716589558cc0f3c3612642b2c2141b04e (git) Affected: 3d249d4ca7d0ed6629a135ea1ea21c72286c0d80 , < 8401cade1918281177974b32c925afdce750d292 (git) Affected: 3d249d4ca7d0ed6629a135ea1ea21c72286c0d80 , < 5bef3ac184b5626ea62385d6b82a1992b89d7940 (git) |
|
| Linux | Linux |
Affected:
3.3
Unaffected: 0 , < 3.3 (semver) Unaffected: 5.4.291 , ≤ 5.4.* (semver) Unaffected: 5.10.235 , ≤ 5.10.* (semver) Unaffected: 5.15.179 , ≤ 5.15.* (semver) Unaffected: 6.1.129 , ≤ 6.1.* (semver) Unaffected: 6.6.79 , ≤ 6.6.* (semver) Unaffected: 6.12.16 , ≤ 6.12.* (semver) Unaffected: 6.13.4 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix) |
|
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem |
Affected:
0 , < *
(custom)
|
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CVE-2025-21790 (GCVE-0-2025-21790)
Vulnerability from cvelistv5 – Published: 2025-02-27 02:18 – Updated: 2026-05-11 21:06
VLAI
EPSS
Title
vxlan: check vxlan_vnigroup_init() return value
Summary
In the Linux kernel, the following vulnerability has been resolved:
vxlan: check vxlan_vnigroup_init() return value
vxlan_init() must check vxlan_vnigroup_init() success
otherwise a crash happens later, spotted by syzbot.
Oops: general protection fault, probably for non-canonical address 0xdffffc000000002c: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000160-0x0000000000000167]
CPU: 0 UID: 0 PID: 7313 Comm: syz-executor147 Not tainted 6.14.0-rc1-syzkaller-00276-g69b54314c975 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:vxlan_vnigroup_uninit+0x89/0x500 drivers/net/vxlan/vxlan_vnifilter.c:912
Code: 00 48 8b 44 24 08 4c 8b b0 98 41 00 00 49 8d 86 60 01 00 00 48 89 c2 48 89 44 24 10 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 4d 04 00 00 49 8b 86 60 01 00 00 48 ba 00 00 00
RSP: 0018:ffffc9000cc1eea8 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff8672effb
RDX: 000000000000002c RSI: ffffffff8672ecb9 RDI: ffff8880461b4f18
RBP: ffff8880461b4ef4 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000020000
R13: ffff8880461b0d80 R14: 0000000000000000 R15: dffffc0000000000
FS: 00007fecfa95d6c0(0000) GS:ffff88806a600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fecfa95cfb8 CR3: 000000004472c000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
vxlan_uninit+0x1ab/0x200 drivers/net/vxlan/vxlan_core.c:2942
unregister_netdevice_many_notify+0x12d6/0x1f30 net/core/dev.c:11824
unregister_netdevice_many net/core/dev.c:11866 [inline]
unregister_netdevice_queue+0x307/0x3f0 net/core/dev.c:11736
register_netdevice+0x1829/0x1eb0 net/core/dev.c:10901
__vxlan_dev_create+0x7c6/0xa30 drivers/net/vxlan/vxlan_core.c:3981
vxlan_newlink+0xd1/0x130 drivers/net/vxlan/vxlan_core.c:4407
rtnl_newlink_create net/core/rtnetlink.c:3795 [inline]
__rtnl_newlink net/core/rtnetlink.c:3906 [inline]
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
f9c4bb0b245cee35ef66f75bf409c9573d934cf9 , < 79aea5e55156c87dc570e43fcd8bba01b9d6ab3f
(git)
Affected: f9c4bb0b245cee35ef66f75bf409c9573d934cf9 , < a303649b99b64858d62ce7428125d8e71675d2b6 (git) Affected: f9c4bb0b245cee35ef66f75bf409c9573d934cf9 , < e860f847787fbbf0d8dacd638c019c7c3d4a9bd3 (git) Affected: f9c4bb0b245cee35ef66f75bf409c9573d934cf9 , < 3215f5aafc49aaa993991633833854694e73b439 (git) Affected: f9c4bb0b245cee35ef66f75bf409c9573d934cf9 , < 5805402dcc56241987bca674a1b4da79a249bab7 (git) |
|
| Linux | Linux |
Affected:
5.18
Unaffected: 0 , < 5.18 (semver) Unaffected: 6.1.129 , ≤ 6.1.* (semver) Unaffected: 6.6.79 , ≤ 6.6.* (semver) Unaffected: 6.12.16 , ≤ 6.12.* (semver) Unaffected: 6.13.4 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix) |
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CVE-2025-21791 (GCVE-0-2025-21791)
Vulnerability from cvelistv5 – Published: 2025-02-27 02:18 – Updated: 2026-05-11 21:06
VLAI
EPSS
Title
vrf: use RCU protection in l3mdev_l3_out()
Summary
In the Linux kernel, the following vulnerability has been resolved:
vrf: use RCU protection in l3mdev_l3_out()
l3mdev_l3_out() can be called without RCU being held:
raw_sendmsg()
ip_push_pending_frames()
ip_send_skb()
ip_local_out()
__ip_local_out()
l3mdev_ip_out()
Add rcu_read_lock() / rcu_read_unlock() pair to avoid
a potential UAF.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
10 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
a8e3e1a9f02094145580ea7920c6a1d9aabd5539 , < 6ccaa5797f5362a2aad6baa6ddaf4715ac2dd51e
(git)
Affected: a8e3e1a9f02094145580ea7920c6a1d9aabd5539 , < 20a3489b396764cc9376e32a9172bee26a89dc3b (git) Affected: a8e3e1a9f02094145580ea7920c6a1d9aabd5539 , < 5bb4228c32261d06e4fbece37ec3828bcc005b6b (git) Affected: a8e3e1a9f02094145580ea7920c6a1d9aabd5539 , < c7574740be8ce68a57d0aece24987b9be2114c3c (git) Affected: a8e3e1a9f02094145580ea7920c6a1d9aabd5539 , < c40cb5c03e37552d6eff963187109e2c3f78ef6f (git) Affected: a8e3e1a9f02094145580ea7920c6a1d9aabd5539 , < 022cac1c693add610ae76ede03adf4d9d5a2cf21 (git) Affected: a8e3e1a9f02094145580ea7920c6a1d9aabd5539 , < 7b81425b517accefd46bee854d94954f5c57e019 (git) Affected: a8e3e1a9f02094145580ea7920c6a1d9aabd5539 , < 6d0ce46a93135d96b7fa075a94a88fe0da8e8773 (git) |
|
| Linux | Linux |
Affected:
4.9
Unaffected: 0 , < 4.9 (semver) Unaffected: 5.4.291 , ≤ 5.4.* (semver) Unaffected: 5.10.235 , ≤ 5.10.* (semver) Unaffected: 5.15.179 , ≤ 5.15.* (semver) Unaffected: 6.1.129 , ≤ 6.1.* (semver) Unaffected: 6.6.79 , ≤ 6.6.* (semver) Unaffected: 6.12.16 , ≤ 6.12.* (semver) Unaffected: 6.13.4 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix) |
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CVE-2025-21792 (GCVE-0-2025-21792)
Vulnerability from cvelistv5 – Published: 2025-02-27 02:18 – Updated: 2026-05-23 15:57
VLAI
EPSS
Title
ax25: Fix refcount leak caused by setting SO_BINDTODEVICE sockopt
Summary
In the Linux kernel, the following vulnerability has been resolved:
ax25: Fix refcount leak caused by setting SO_BINDTODEVICE sockopt
If an AX25 device is bound to a socket by setting the SO_BINDTODEVICE
socket option, a refcount leak will occur in ax25_release().
Commit 9fd75b66b8f6 ("ax25: Fix refcount leaks caused by ax25_cb_del()")
added decrement of device refcounts in ax25_release(). In order for that
to work correctly the refcounts must already be incremented when the
device is bound to the socket. An AX25 device can be bound to a socket
by either calling ax25_bind() or setting SO_BINDTODEVICE socket option.
In both cases the refcounts should be incremented, but in fact it is done
only in ax25_bind().
This bug leads to the following issue reported by Syzkaller:
================================================================
refcount_t: decrement hit 0; leaking memory.
WARNING: CPU: 1 PID: 5932 at lib/refcount.c:31 refcount_warn_saturate+0x1ed/0x210 lib/refcount.c:31
Modules linked in:
CPU: 1 UID: 0 PID: 5932 Comm: syz-executor424 Not tainted 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:refcount_warn_saturate+0x1ed/0x210 lib/refcount.c:31
Call Trace:
<TASK>
__refcount_dec include/linux/refcount.h:336 [inline]
refcount_dec include/linux/refcount.h:351 [inline]
ref_tracker_free+0x710/0x820 lib/ref_tracker.c:236
netdev_tracker_free include/linux/netdevice.h:4156 [inline]
netdev_put include/linux/netdevice.h:4173 [inline]
netdev_put include/linux/netdevice.h:4169 [inline]
ax25_release+0x33f/0xa10 net/ax25/af_ax25.c:1069
__sock_release+0xb0/0x270 net/socket.c:640
sock_close+0x1c/0x30 net/socket.c:1408
...
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
...
</TASK>
================================================================
Fix the implementation of ax25_setsockopt() by adding increment of
refcounts for the new device bound, and decrement of refcounts for
the old unbound device.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
9fd75b66b8f68498454d685dc4ba13192ae069b0 , < 90056ece99966182dc0e367f3fd2afab46ada847
(git)
Affected: 9fd75b66b8f68498454d685dc4ba13192ae069b0 , < 94a0de224ed52eb2ecd4f4cb1b937b674c9fb955 (git) Affected: 9fd75b66b8f68498454d685dc4ba13192ae069b0 , < b58f7ca86a7b8e480c06e30c5163c5d2f4e24023 (git) Affected: 9fd75b66b8f68498454d685dc4ba13192ae069b0 , < 470bda72fda0fcf54300466d70ce2de62f7835d2 (git) Affected: 9fd75b66b8f68498454d685dc4ba13192ae069b0 , < bca0902e61731a75fc4860c8720168d9f1bae3b6 (git) Affected: c44a453ffe16eb08acdc6129ac4fa0192dbc0456 (git) Affected: de55a1338e6a48ff1e41ea8db1432496fbe2a62b (git) Affected: 9e1e088a57c23251f1cfe9601bbd90ade2ea73b9 (git) Affected: b20a5ab0f5fb175750c6bafd4cf12daccf00c738 (git) Affected: 452ae92b99062d2f6a34324eaf705a3b7eac9f8b (git) Affected: 534156dd4ed768e30a43de0036f45dca7c54818f (git) Affected: 4.14.277 , < 4.15 (semver) Affected: 4.19.240 , < 4.20 (semver) Affected: 5.4.190 , < 5.5 (semver) Affected: 5.10.112 , < 5.11 (semver) Affected: 5.15.35 , < 5.16 (semver) Affected: 5.17.2 , < 5.18 (semver) |
|
| Linux | Linux |
Affected:
5.18
Unaffected: 0 , < 5.18 (semver) Unaffected: 6.1.129 , ≤ 6.1.* (semver) Unaffected: 6.6.79 , ≤ 6.6.* (semver) Unaffected: 6.12.16 , ≤ 6.12.* (semver) Unaffected: 6.13.4 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix) |
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CVE-2025-21793 (GCVE-0-2025-21793)
Vulnerability from cvelistv5 – Published: 2025-02-27 02:18 – Updated: 2026-05-11 21:06
VLAI
EPSS
Title
spi: sn-f-ospi: Fix division by zero
Summary
In the Linux kernel, the following vulnerability has been resolved:
spi: sn-f-ospi: Fix division by zero
When there is no dummy cycle in the spi-nor commands, both dummy bus cycle
bytes and width are zero. Because of the cpu's warning when divided by
zero, the warning should be avoided. Return just zero to avoid such
calculations.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-369 - Divide By Zero
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
1b74dd64c8612619e399e5a31da79a3636914495 , < 966328191b4c389c0f2159fa242915f51cbc1679
(git)
Affected: 1b74dd64c8612619e399e5a31da79a3636914495 , < 4df6f005bef04a3dd16c028124a1b5684db3922b (git) Affected: 1b74dd64c8612619e399e5a31da79a3636914495 , < 7434135553bc03809a55803ee6a8dcaae6240d55 (git) Affected: 1b74dd64c8612619e399e5a31da79a3636914495 , < 3588b1c0fde2f58d166e3f94a5a58d64b893526c (git) |
|
| Linux | Linux |
Affected:
6.2
Unaffected: 0 , < 6.2 (semver) Unaffected: 6.6.79 , ≤ 6.6.* (semver) Unaffected: 6.12.16 , ≤ 6.12.* (semver) Unaffected: 6.13.4 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix) |
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CVE-2025-21795 (GCVE-0-2025-21795)
Vulnerability from cvelistv5 – Published: 2025-02-27 02:18 – Updated: 2026-05-23 15:57
VLAI
EPSS
Title
NFSD: fix hang in nfsd4_shutdown_callback
Summary
In the Linux kernel, the following vulnerability has been resolved:
NFSD: fix hang in nfsd4_shutdown_callback
If nfs4_client is in courtesy state then there is no point to send
the callback. This causes nfsd4_shutdown_callback to hang since
cl_cb_inflight is not 0. This hang lasts about 15 minutes until TCP
notifies NFSD that the connection was dropped.
This patch modifies nfsd4_run_cb_work to skip the RPC call if
nfs4_client is in courtesy state.
Severity
No CVSS data available.
Assigner
References
11 references
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
67ef9e5fd737eab2495f2586df7e9ea30caa1b77 , < abed68027ea3ab893ac85cc46a00e2e64a324239
(git)
Affected: 26540b8940a2e21582afa61a6fb8af87310bac72 , < efa8a261c575f816c7e79a87aeb3ef8a0bd6b221 (git) Affected: 66af25799940b26efd41ea6e648f75c41a48a2c2 , < 38d345f612503b850c2973e5a879f88e441b34d7 (git) Affected: 66af25799940b26efd41ea6e648f75c41a48a2c2 , < 23ad7797c74cd8f7f90617f1e59a8703e2b43908 (git) Affected: 66af25799940b26efd41ea6e648f75c41a48a2c2 , < cedfbb92cf97a6bff3d25633001d9c44442ee854 (git) Affected: 66af25799940b26efd41ea6e648f75c41a48a2c2 , < e88d2451cd42e025465d6b51fd716a47b0b3800d (git) Affected: 66af25799940b26efd41ea6e648f75c41a48a2c2 , < 036ac2778f7b28885814c6fbc07e156ad1624d03 (git) Affected: 5.10.220 , < 5.10.235 (semver) Affected: 5.15.154 , < 5.15.179 (semver) |
|
| Linux | Linux |
Affected:
5.19
Unaffected: 0 , < 5.19 (semver) Unaffected: 5.10.235 , ≤ 5.10.* (semver) Unaffected: 5.15.179 , ≤ 5.15.* (semver) Unaffected: 6.1.129 , ≤ 6.1.* (semver) Unaffected: 6.6.79 , ≤ 6.6.* (semver) Unaffected: 6.12.16 , ≤ 6.12.* (semver) Unaffected: 6.13.4 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix) |
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
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CVE-2025-21796 (GCVE-0-2025-21796)
Vulnerability from cvelistv5 – Published: 2025-02-27 02:18 – Updated: 2026-05-12 12:03
VLAI
EPSS
Title
nfsd: clear acl_access/acl_default after releasing them
Summary
In the Linux kernel, the following vulnerability has been resolved:
nfsd: clear acl_access/acl_default after releasing them
If getting acl_default fails, acl_access and acl_default will be released
simultaneously. However, acl_access will still retain a pointer pointing
to the released posix_acl, which will trigger a WARNING in
nfs3svc_release_getacl like this:
------------[ cut here ]------------
refcount_t: underflow; use-after-free.
WARNING: CPU: 26 PID: 3199 at lib/refcount.c:28
refcount_warn_saturate+0xb5/0x170
Modules linked in:
CPU: 26 UID: 0 PID: 3199 Comm: nfsd Not tainted
6.12.0-rc6-00079-g04ae226af01f-dirty #8
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.16.1-2.fc37 04/01/2014
RIP: 0010:refcount_warn_saturate+0xb5/0x170
Code: cc cc 0f b6 1d b3 20 a5 03 80 fb 01 0f 87 65 48 d8 00 83 e3 01 75
e4 48 c7 c7 c0 3b 9b 85 c6 05 97 20 a5 03 01 e8 fb 3e 30 ff <0f> 0b eb
cd 0f b6 1d 8a3
RSP: 0018:ffffc90008637cd8 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff83904fde
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff88871ed36380
RBP: ffff888158beeb40 R08: 0000000000000001 R09: fffff520010c6f56
R10: ffffc90008637ab7 R11: 0000000000000001 R12: 0000000000000001
R13: ffff888140e77400 R14: ffff888140e77408 R15: ffffffff858b42c0
FS: 0000000000000000(0000) GS:ffff88871ed00000(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562384d32158 CR3: 000000055cc6a000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
? refcount_warn_saturate+0xb5/0x170
? __warn+0xa5/0x140
? refcount_warn_saturate+0xb5/0x170
? report_bug+0x1b1/0x1e0
? handle_bug+0x53/0xa0
? exc_invalid_op+0x17/0x40
? asm_exc_invalid_op+0x1a/0x20
? tick_nohz_tick_stopped+0x1e/0x40
? refcount_warn_saturate+0xb5/0x170
? refcount_warn_saturate+0xb5/0x170
nfs3svc_release_getacl+0xc9/0xe0
svc_process_common+0x5db/0xb60
? __pfx_svc_process_common+0x10/0x10
? __rcu_read_unlock+0x69/0xa0
? __pfx_nfsd_dispatch+0x10/0x10
? svc_xprt_received+0xa1/0x120
? xdr_init_decode+0x11d/0x190
svc_process+0x2a7/0x330
svc_handle_xprt+0x69d/0x940
svc_recv+0x180/0x2d0
nfsd+0x168/0x200
? __pfx_nfsd+0x10/0x10
kthread+0x1a2/0x1e0
? kthread+0xf4/0x1e0
? __pfx_kthread+0x10/0x10
ret_from_fork+0x34/0x60
? __pfx_kthread+0x10/0x10
ret_from_fork_asm+0x1a/0x30
</TASK>
Kernel panic - not syncing: kernel: panic_on_warn set ...
Clear acl_access/acl_default after posix_acl_release is called to prevent
UAF from being triggered.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
11 references
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
a257cdd0e2179630d3201c32ba14d7fcb3c3a055 , < 8a1737ae42c928384ab6447f6ee1a882510e85fa
(git)
Affected: a257cdd0e2179630d3201c32ba14d7fcb3c3a055 , < 6f7cfee1a316891890c505563aa54f3476db52fd (git) Affected: a257cdd0e2179630d3201c32ba14d7fcb3c3a055 , < 2e59b2b68782519560b3d6a41dd66a3d01a01cd3 (git) Affected: a257cdd0e2179630d3201c32ba14d7fcb3c3a055 , < 55d947315fb5f67a35e4e1d3e01bb886b9c6decf (git) Affected: a257cdd0e2179630d3201c32ba14d7fcb3c3a055 , < f8d871523142f7895f250a856f8c4a4181614510 (git) Affected: a257cdd0e2179630d3201c32ba14d7fcb3c3a055 , < 1fd94884174bd20beb1773990fd3b1aa877688d9 (git) Affected: a257cdd0e2179630d3201c32ba14d7fcb3c3a055 , < 7faf14a7b0366f153284db0ad3347c457ea70136 (git) |
|
| Linux | Linux |
Affected:
2.6.13
Unaffected: 0 , < 2.6.13 (semver) Unaffected: 5.10.235 , ≤ 5.10.* (semver) Unaffected: 5.15.179 , ≤ 5.15.* (semver) Unaffected: 6.1.129 , ≤ 6.1.* (semver) Unaffected: 6.6.79 , ≤ 6.6.* (semver) Unaffected: 6.12.16 , ≤ 6.12.* (semver) Unaffected: 6.13.4 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix) |
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: clear acl_access/acl_default after releasing them\n\nIf getting acl_default fails, acl_access and acl_default will be released\nsimultaneously. However, acl_access will still retain a pointer pointing\nto the released posix_acl, which will trigger a WARNING in\nnfs3svc_release_getacl like this:\n\n------------[ cut here ]------------\nrefcount_t: underflow; use-after-free.\nWARNING: CPU: 26 PID: 3199 at lib/refcount.c:28\nrefcount_warn_saturate+0xb5/0x170\nModules linked in:\nCPU: 26 UID: 0 PID: 3199 Comm: nfsd Not tainted\n6.12.0-rc6-00079-g04ae226af01f-dirty #8\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\n1.16.1-2.fc37 04/01/2014\nRIP: 0010:refcount_warn_saturate+0xb5/0x170\nCode: cc cc 0f b6 1d b3 20 a5 03 80 fb 01 0f 87 65 48 d8 00 83 e3 01 75\ne4 48 c7 c7 c0 3b 9b 85 c6 05 97 20 a5 03 01 e8 fb 3e 30 ff \u003c0f\u003e 0b eb\ncd 0f b6 1d 8a3\nRSP: 0018:ffffc90008637cd8 EFLAGS: 00010282\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff83904fde\nRDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff88871ed36380\nRBP: ffff888158beeb40 R08: 0000000000000001 R09: fffff520010c6f56\nR10: ffffc90008637ab7 R11: 0000000000000001 R12: 0000000000000001\nR13: ffff888140e77400 R14: ffff888140e77408 R15: ffffffff858b42c0\nFS: 0000000000000000(0000) GS:ffff88871ed00000(0000)\nknlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000562384d32158 CR3: 000000055cc6a000 CR4: 00000000000006f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u003cTASK\u003e\n ? refcount_warn_saturate+0xb5/0x170\n ? __warn+0xa5/0x140\n ? refcount_warn_saturate+0xb5/0x170\n ? report_bug+0x1b1/0x1e0\n ? handle_bug+0x53/0xa0\n ? exc_invalid_op+0x17/0x40\n ? asm_exc_invalid_op+0x1a/0x20\n ? tick_nohz_tick_stopped+0x1e/0x40\n ? refcount_warn_saturate+0xb5/0x170\n ? refcount_warn_saturate+0xb5/0x170\n nfs3svc_release_getacl+0xc9/0xe0\n svc_process_common+0x5db/0xb60\n ? __pfx_svc_process_common+0x10/0x10\n ? __rcu_read_unlock+0x69/0xa0\n ? __pfx_nfsd_dispatch+0x10/0x10\n ? svc_xprt_received+0xa1/0x120\n ? xdr_init_decode+0x11d/0x190\n svc_process+0x2a7/0x330\n svc_handle_xprt+0x69d/0x940\n svc_recv+0x180/0x2d0\n nfsd+0x168/0x200\n ? __pfx_nfsd+0x10/0x10\n kthread+0x1a2/0x1e0\n ? kthread+0xf4/0x1e0\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x34/0x60\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1a/0x30\n \u003c/TASK\u003e\nKernel panic - not syncing: kernel: panic_on_warn set ...\n\nClear acl_access/acl_default after posix_acl_release is called to prevent\nUAF from being triggered."
}
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"url": "https://git.kernel.org/stable/c/8a1737ae42c928384ab6447f6ee1a882510e85fa"
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"url": "https://git.kernel.org/stable/c/6f7cfee1a316891890c505563aa54f3476db52fd"
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"title": "nfsd: clear acl_access/acl_default after releasing them",
"x_generator": {
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"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"cveId": "CVE-2025-21796",
"datePublished": "2025-02-27T02:18:32.191Z",
"dateReserved": "2024-12-29T08:45:45.768Z",
"dateUpdated": "2026-05-12T12:03:56.109Z",
"state": "PUBLISHED"
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CVE-2025-21821 (GCVE-0-2025-21821)
Vulnerability from cvelistv5 – Published: 2025-02-27 20:06 – Updated: 2026-05-11 21:07
VLAI
EPSS
Title
fbdev: omap: use threaded IRQ for LCD DMA
Summary
In the Linux kernel, the following vulnerability has been resolved:
fbdev: omap: use threaded IRQ for LCD DMA
When using touchscreen and framebuffer, Nokia 770 crashes easily with:
BUG: scheduling while atomic: irq/144-ads7846/82/0x00010000
Modules linked in: usb_f_ecm g_ether usb_f_rndis u_ether libcomposite configfs omap_udc ohci_omap ohci_hcd
CPU: 0 UID: 0 PID: 82 Comm: irq/144-ads7846 Not tainted 6.12.7-770 #2
Hardware name: Nokia 770
Call trace:
unwind_backtrace from show_stack+0x10/0x14
show_stack from dump_stack_lvl+0x54/0x5c
dump_stack_lvl from __schedule_bug+0x50/0x70
__schedule_bug from __schedule+0x4d4/0x5bc
__schedule from schedule+0x34/0xa0
schedule from schedule_preempt_disabled+0xc/0x10
schedule_preempt_disabled from __mutex_lock.constprop.0+0x218/0x3b4
__mutex_lock.constprop.0 from clk_prepare_lock+0x38/0xe4
clk_prepare_lock from clk_set_rate+0x18/0x154
clk_set_rate from sossi_read_data+0x4c/0x168
sossi_read_data from hwa742_read_reg+0x5c/0x8c
hwa742_read_reg from send_frame_handler+0xfc/0x300
send_frame_handler from process_pending_requests+0x74/0xd0
process_pending_requests from lcd_dma_irq_handler+0x50/0x74
lcd_dma_irq_handler from __handle_irq_event_percpu+0x44/0x130
__handle_irq_event_percpu from handle_irq_event+0x28/0x68
handle_irq_event from handle_level_irq+0x9c/0x170
handle_level_irq from generic_handle_domain_irq+0x2c/0x3c
generic_handle_domain_irq from omap1_handle_irq+0x40/0x8c
omap1_handle_irq from generic_handle_arch_irq+0x28/0x3c
generic_handle_arch_irq from call_with_stack+0x1c/0x24
call_with_stack from __irq_svc+0x94/0xa8
Exception stack(0xc5255da0 to 0xc5255de8)
5da0: 00000001 c22fc620 00000000 00000000 c08384a8 c106fc00 00000000 c240c248
5dc0: c113a600 c3f6ec30 00000001 00000000 c22fc620 c5255df0 c22fc620 c0279a94
5de0: 60000013 ffffffff
__irq_svc from clk_prepare_lock+0x4c/0xe4
clk_prepare_lock from clk_get_rate+0x10/0x74
clk_get_rate from uwire_setup_transfer+0x40/0x180
uwire_setup_transfer from spi_bitbang_transfer_one+0x2c/0x9c
spi_bitbang_transfer_one from spi_transfer_one_message+0x2d0/0x664
spi_transfer_one_message from __spi_pump_transfer_message+0x29c/0x498
__spi_pump_transfer_message from __spi_sync+0x1f8/0x2e8
__spi_sync from spi_sync+0x24/0x40
spi_sync from ads7846_halfd_read_state+0x5c/0x1c0
ads7846_halfd_read_state from ads7846_irq+0x58/0x348
ads7846_irq from irq_thread_fn+0x1c/0x78
irq_thread_fn from irq_thread+0x120/0x228
irq_thread from kthread+0xc8/0xe8
kthread from ret_from_fork+0x14/0x28
As a quick fix, switch to a threaded IRQ which provides a stable system.
Severity
No CVSS data available.
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
c73b9099da4fb5703abaa804a0377850eea66cb5 , < 7bbbd311dd503653a2cc86d9226740883051dc92
(git)
Affected: c73b9099da4fb5703abaa804a0377850eea66cb5 , < fb6a5edb60921887d7d10619fcdcbee9759552cb (git) Affected: c73b9099da4fb5703abaa804a0377850eea66cb5 , < aa8e22cbedeb626f2a6bda0aea362353d627cd0a (git) Affected: c73b9099da4fb5703abaa804a0377850eea66cb5 , < 8392ea100f0b86c234c739c6662f39f0ccc0cefd (git) Affected: c73b9099da4fb5703abaa804a0377850eea66cb5 , < e4b6b665df815b4841e71b72f06446884e8aad40 (git) |
|
| Linux | Linux |
Affected:
5.19
Unaffected: 0 , < 5.19 (semver) Unaffected: 6.1.129 , ≤ 6.1.* (semver) Unaffected: 6.6.79 , ≤ 6.6.* (semver) Unaffected: 6.12.16 , ≤ 6.12.* (semver) Unaffected: 6.13.4 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix) |
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: omap: use threaded IRQ for LCD DMA\n\nWhen using touchscreen and framebuffer, Nokia 770 crashes easily with:\n\n BUG: scheduling while atomic: irq/144-ads7846/82/0x00010000\n Modules linked in: usb_f_ecm g_ether usb_f_rndis u_ether libcomposite configfs omap_udc ohci_omap ohci_hcd\n CPU: 0 UID: 0 PID: 82 Comm: irq/144-ads7846 Not tainted 6.12.7-770 #2\n Hardware name: Nokia 770\n Call trace:\n unwind_backtrace from show_stack+0x10/0x14\n show_stack from dump_stack_lvl+0x54/0x5c\n dump_stack_lvl from __schedule_bug+0x50/0x70\n __schedule_bug from __schedule+0x4d4/0x5bc\n __schedule from schedule+0x34/0xa0\n schedule from schedule_preempt_disabled+0xc/0x10\n schedule_preempt_disabled from __mutex_lock.constprop.0+0x218/0x3b4\n __mutex_lock.constprop.0 from clk_prepare_lock+0x38/0xe4\n clk_prepare_lock from clk_set_rate+0x18/0x154\n clk_set_rate from sossi_read_data+0x4c/0x168\n sossi_read_data from hwa742_read_reg+0x5c/0x8c\n hwa742_read_reg from send_frame_handler+0xfc/0x300\n send_frame_handler from process_pending_requests+0x74/0xd0\n process_pending_requests from lcd_dma_irq_handler+0x50/0x74\n lcd_dma_irq_handler from __handle_irq_event_percpu+0x44/0x130\n __handle_irq_event_percpu from handle_irq_event+0x28/0x68\n handle_irq_event from handle_level_irq+0x9c/0x170\n handle_level_irq from generic_handle_domain_irq+0x2c/0x3c\n generic_handle_domain_irq from omap1_handle_irq+0x40/0x8c\n omap1_handle_irq from generic_handle_arch_irq+0x28/0x3c\n generic_handle_arch_irq from call_with_stack+0x1c/0x24\n call_with_stack from __irq_svc+0x94/0xa8\n Exception stack(0xc5255da0 to 0xc5255de8)\n 5da0: 00000001 c22fc620 00000000 00000000 c08384a8 c106fc00 00000000 c240c248\n 5dc0: c113a600 c3f6ec30 00000001 00000000 c22fc620 c5255df0 c22fc620 c0279a94\n 5de0: 60000013 ffffffff\n __irq_svc from clk_prepare_lock+0x4c/0xe4\n clk_prepare_lock from clk_get_rate+0x10/0x74\n clk_get_rate from uwire_setup_transfer+0x40/0x180\n uwire_setup_transfer from spi_bitbang_transfer_one+0x2c/0x9c\n spi_bitbang_transfer_one from spi_transfer_one_message+0x2d0/0x664\n spi_transfer_one_message from __spi_pump_transfer_message+0x29c/0x498\n __spi_pump_transfer_message from __spi_sync+0x1f8/0x2e8\n __spi_sync from spi_sync+0x24/0x40\n spi_sync from ads7846_halfd_read_state+0x5c/0x1c0\n ads7846_halfd_read_state from ads7846_irq+0x58/0x348\n ads7846_irq from irq_thread_fn+0x1c/0x78\n irq_thread_fn from irq_thread+0x120/0x228\n irq_thread from kthread+0xc8/0xe8\n kthread from ret_from_fork+0x14/0x28\n\nAs a quick fix, switch to a threaded IRQ which provides a stable system."
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"title": "fbdev: omap: use threaded IRQ for LCD DMA",
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CVE-2025-21823 (GCVE-0-2025-21823)
Vulnerability from cvelistv5 – Published: 2025-02-27 20:06 – Updated: 2026-05-11 21:07
VLAI
EPSS
Title
batman-adv: Drop unmanaged ELP metric worker
Summary
In the Linux kernel, the following vulnerability has been resolved:
batman-adv: Drop unmanaged ELP metric worker
The ELP worker needs to calculate new metric values for all neighbors
"reachable" over an interface. Some of the used metric sources require
locks which might need to sleep. This sleep is incompatible with the RCU
list iterator used for the recorded neighbors. The initial approach to work
around of this problem was to queue another work item per neighbor and then
run this in a new context.
Even when this solved the RCU vs might_sleep() conflict, it has a major
problems: Nothing was stopping the work item in case it is not needed
anymore - for example because one of the related interfaces was removed or
the batman-adv module was unloaded - resulting in potential invalid memory
accesses.
Directly canceling the metric worker also has various problems:
* cancel_work_sync for a to-be-deactivated interface is called with
rtnl_lock held. But the code in the ELP metric worker also tries to use
rtnl_lock() - which will never return in this case. This also means that
cancel_work_sync would never return because it is waiting for the worker
to finish.
* iterating over the neighbor list for the to-be-deactivated interface is
currently done using the RCU specific methods. Which means that it is
possible to miss items when iterating over it without the associated
spinlock - a behaviour which is acceptable for a periodic metric check
but not for a cleanup routine (which must "stop" all still running
workers)
The better approch is to get rid of the per interface neighbor metric
worker and handle everything in the interface worker. The original problems
are solved by:
* creating a list of neighbors which require new metric information inside
the RCU protected context, gathering the metric according to the new list
outside the RCU protected context
* only use rcu_trylock inside metric gathering code to avoid a deadlock
when the cancel_delayed_work_sync is called in the interface removal code
(which is called with the rtnl_lock held)
Severity
No CVSS data available.
Assigner
References
10 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
c833484e5f3872a38fe232c663586069d5ad9645 , < 1c334629176c2d644befc31a20d4bf75542f7631
(git)
Affected: c833484e5f3872a38fe232c663586069d5ad9645 , < a0019971f340ae02ba54cf1861f72da7e03e6b66 (git) Affected: c833484e5f3872a38fe232c663586069d5ad9645 , < 3c0e0aecb78cb2a2ca1dc701982d08fedb088dc6 (git) Affected: c833484e5f3872a38fe232c663586069d5ad9645 , < 781a06fd265a8151f7601122d9c2e985663828ff (git) Affected: c833484e5f3872a38fe232c663586069d5ad9645 , < a7aa2317285806640c844acd4cd2cd768e395264 (git) Affected: c833484e5f3872a38fe232c663586069d5ad9645 , < 0fdc3c166ac17b26014313fa2b93696354511b24 (git) Affected: c833484e5f3872a38fe232c663586069d5ad9645 , < af264c2a9adc37f4bdf88ca7f3affa15d8c7de9e (git) Affected: c833484e5f3872a38fe232c663586069d5ad9645 , < 8c8ecc98f5c65947b0070a24bac11e12e47cc65d (git) |
|
| Linux | Linux |
Affected:
4.6
Unaffected: 0 , < 4.6 (semver) Unaffected: 5.4.291 , ≤ 5.4.* (semver) Unaffected: 5.10.235 , ≤ 5.10.* (semver) Unaffected: 5.15.179 , ≤ 5.15.* (semver) Unaffected: 6.1.129 , ≤ 6.1.* (semver) Unaffected: 6.6.79 , ≤ 6.6.* (semver) Unaffected: 6.12.16 , ≤ 6.12.* (semver) Unaffected: 6.13.4 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix) |
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"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/batman-adv/bat_v.c",
"net/batman-adv/bat_v_elp.c",
"net/batman-adv/bat_v_elp.h",
"net/batman-adv/types.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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"status": "affected",
"version": "c833484e5f3872a38fe232c663586069d5ad9645",
"versionType": "git"
},
{
"lessThan": "a0019971f340ae02ba54cf1861f72da7e03e6b66",
"status": "affected",
"version": "c833484e5f3872a38fe232c663586069d5ad9645",
"versionType": "git"
},
{
"lessThan": "3c0e0aecb78cb2a2ca1dc701982d08fedb088dc6",
"status": "affected",
"version": "c833484e5f3872a38fe232c663586069d5ad9645",
"versionType": "git"
},
{
"lessThan": "781a06fd265a8151f7601122d9c2e985663828ff",
"status": "affected",
"version": "c833484e5f3872a38fe232c663586069d5ad9645",
"versionType": "git"
},
{
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"status": "affected",
"version": "c833484e5f3872a38fe232c663586069d5ad9645",
"versionType": "git"
},
{
"lessThan": "0fdc3c166ac17b26014313fa2b93696354511b24",
"status": "affected",
"version": "c833484e5f3872a38fe232c663586069d5ad9645",
"versionType": "git"
},
{
"lessThan": "af264c2a9adc37f4bdf88ca7f3affa15d8c7de9e",
"status": "affected",
"version": "c833484e5f3872a38fe232c663586069d5ad9645",
"versionType": "git"
},
{
"lessThan": "8c8ecc98f5c65947b0070a24bac11e12e47cc65d",
"status": "affected",
"version": "c833484e5f3872a38fe232c663586069d5ad9645",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/batman-adv/bat_v.c",
"net/batman-adv/bat_v_elp.c",
"net/batman-adv/bat_v_elp.h",
"net/batman-adv/types.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.6"
},
{
"lessThan": "4.6",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.291",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.235",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.179",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.129",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.79",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.16",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.13.*",
"status": "unaffected",
"version": "6.13.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.14",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.291",
"versionStartIncluding": "4.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.235",
"versionStartIncluding": "4.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.179",
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"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.129",
"versionStartIncluding": "4.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.79",
"versionStartIncluding": "4.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.16",
"versionStartIncluding": "4.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.13.4",
"versionStartIncluding": "4.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.14",
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"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: Drop unmanaged ELP metric worker\n\nThe ELP worker needs to calculate new metric values for all neighbors\n\"reachable\" over an interface. Some of the used metric sources require\nlocks which might need to sleep. This sleep is incompatible with the RCU\nlist iterator used for the recorded neighbors. The initial approach to work\naround of this problem was to queue another work item per neighbor and then\nrun this in a new context.\n\nEven when this solved the RCU vs might_sleep() conflict, it has a major\nproblems: Nothing was stopping the work item in case it is not needed\nanymore - for example because one of the related interfaces was removed or\nthe batman-adv module was unloaded - resulting in potential invalid memory\naccesses.\n\nDirectly canceling the metric worker also has various problems:\n\n* cancel_work_sync for a to-be-deactivated interface is called with\n rtnl_lock held. But the code in the ELP metric worker also tries to use\n rtnl_lock() - which will never return in this case. This also means that\n cancel_work_sync would never return because it is waiting for the worker\n to finish.\n* iterating over the neighbor list for the to-be-deactivated interface is\n currently done using the RCU specific methods. Which means that it is\n possible to miss items when iterating over it without the associated\n spinlock - a behaviour which is acceptable for a periodic metric check\n but not for a cleanup routine (which must \"stop\" all still running\n workers)\n\nThe better approch is to get rid of the per interface neighbor metric\nworker and handle everything in the interface worker. The original problems\nare solved by:\n\n* creating a list of neighbors which require new metric information inside\n the RCU protected context, gathering the metric according to the new list\n outside the RCU protected context\n* only use rcu_trylock inside metric gathering code to avoid a deadlock\n when the cancel_delayed_work_sync is called in the interface removal code\n (which is called with the rtnl_lock held)"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T21:07:12.601Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/1c334629176c2d644befc31a20d4bf75542f7631"
},
{
"url": "https://git.kernel.org/stable/c/a0019971f340ae02ba54cf1861f72da7e03e6b66"
},
{
"url": "https://git.kernel.org/stable/c/3c0e0aecb78cb2a2ca1dc701982d08fedb088dc6"
},
{
"url": "https://git.kernel.org/stable/c/781a06fd265a8151f7601122d9c2e985663828ff"
},
{
"url": "https://git.kernel.org/stable/c/a7aa2317285806640c844acd4cd2cd768e395264"
},
{
"url": "https://git.kernel.org/stable/c/0fdc3c166ac17b26014313fa2b93696354511b24"
},
{
"url": "https://git.kernel.org/stable/c/af264c2a9adc37f4bdf88ca7f3affa15d8c7de9e"
},
{
"url": "https://git.kernel.org/stable/c/8c8ecc98f5c65947b0070a24bac11e12e47cc65d"
}
],
"title": "batman-adv: Drop unmanaged ELP metric worker",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-21823",
"datePublished": "2025-02-27T20:06:14.074Z",
"dateReserved": "2024-12-29T08:45:45.775Z",
"dateUpdated": "2026-05-11T21:07:12.601Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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