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CERTFR-2025-AVI-0670
Vulnerability from certfr_avis - Published: 2025-08-08 - Updated: 2025-08-08
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 un contournement de la politique de sécurité.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
References
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Ubuntu 16.04 ESM",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"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 25.04",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 18.04 ESM",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 14.04 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-2025-37850",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37850"
},
{
"name": "CVE-2024-53203",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-53203"
},
{
"name": "CVE-2025-37892",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37892"
},
{
"name": "CVE-2025-37859",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37859"
},
{
"name": "CVE-2025-37792",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37792"
},
{
"name": "CVE-2025-22027",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-22027"
},
{
"name": "CVE-2025-37766",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37766"
},
{
"name": "CVE-2025-21853",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21853"
},
{
"name": "CVE-2025-37844",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37844"
},
{
"name": "CVE-2025-37871",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37871"
},
{
"name": "CVE-2024-46751",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-46751"
},
{
"name": "CVE-2025-37790",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37790"
},
{
"name": "CVE-2025-37758",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37758"
},
{
"name": "CVE-2024-46787",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-46787"
},
{
"name": "CVE-2022-49168",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-49168"
},
{
"name": "CVE-2024-50125",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50125"
},
{
"name": "CVE-2025-37841",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37841"
},
{
"name": "CVE-2025-37770",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37770"
},
{
"name": "CVE-2025-37773",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37773"
},
{
"name": "CVE-2024-49950",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49950"
},
{
"name": "CVE-2024-50047",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50047"
},
{
"name": "CVE-2025-37983",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37983"
},
{
"name": "CVE-2025-37798",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37798"
},
{
"name": "CVE-2025-37819",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37819"
},
{
"name": "CVE-2024-35867",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-35867"
},
{
"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-2025-37789",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37789"
},
{
"name": "CVE-2024-46816",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-46816"
},
{
"name": "CVE-2025-37867",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37867"
},
{
"name": "CVE-2025-37857",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37857"
},
{
"name": "CVE-2025-37927",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37927"
},
{
"name": "CVE-2025-37911",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37911"
},
{
"name": "CVE-2024-26686",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-26686"
},
{
"name": "CVE-2024-53128",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-53128"
},
{
"name": "CVE-2025-37930",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37930"
},
{
"name": "CVE-2025-37810",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37810"
},
{
"name": "CVE-2025-23159",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23159"
},
{
"name": "CVE-2024-49960",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49960"
},
{
"name": "CVE-2025-37741",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37741"
},
{
"name": "CVE-2025-37912",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37912"
},
{
"name": "CVE-2025-37985",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37985"
},
{
"name": "CVE-2025-37787",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37787"
},
{
"name": "CVE-2025-38024",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38024"
},
{
"name": "CVE-2022-49063",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-49063"
},
{
"name": "CVE-2024-53239",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-53239"
},
{
"name": "CVE-2025-38005",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38005"
},
{
"name": "CVE-2022-49535",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-49535"
},
{
"name": "CVE-2025-23158",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23158"
},
{
"name": "CVE-2025-23144",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23144"
},
{
"name": "CVE-2025-37969",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37969"
},
{
"name": "CVE-2022-48893",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-48893"
},
{
"name": "CVE-2025-37742",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37742"
},
{
"name": "CVE-2025-37765",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37765"
},
{
"name": "CVE-2025-23161",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23161"
},
{
"name": "CVE-2025-37803",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37803"
},
{
"name": "CVE-2025-37824",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37824"
},
{
"name": "CVE-2025-37923",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37923"
},
{
"name": "CVE-2024-53051",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-53051"
},
{
"name": "CVE-2025-22062",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-22062"
},
{
"name": "CVE-2025-37739",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37739"
},
{
"name": "CVE-2025-37940",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37940"
},
{
"name": "CVE-2025-37964",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37964"
},
{
"name": "CVE-2024-46742",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-46742"
},
{
"name": "CVE-2024-50272",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50272"
},
{
"name": "CVE-2025-37915",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37915"
},
{
"name": "CVE-2025-23146",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23146"
},
{
"name": "CVE-2025-23142",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23142"
},
{
"name": "CVE-2024-35790",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-35790"
},
{
"name": "CVE-2025-37738",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37738"
},
{
"name": "CVE-2025-37830",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37830"
},
{
"name": "CVE-2025-37991",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37991"
},
{
"name": "CVE-2023-52572",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52572"
},
{
"name": "CVE-2025-37781",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37781"
},
{
"name": "CVE-2025-37797",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37797"
},
{
"name": "CVE-2025-23145",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23145"
},
{
"name": "CVE-2025-37823",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37823"
},
{
"name": "CVE-2024-27402",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-27402"
},
{
"name": "CVE-2025-37740",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37740"
},
{
"name": "CVE-2025-37829",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37829"
},
{
"name": "CVE-2025-23151",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23151"
},
{
"name": "CVE-2025-37796",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37796"
},
{
"name": "CVE-2025-37883",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37883"
},
{
"name": "CVE-2025-37811",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37811"
},
{
"name": "CVE-2025-37767",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37767"
},
{
"name": "CVE-2025-37989",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37989"
},
{
"name": "CVE-2024-50280",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50280"
},
{
"name": "CVE-2025-37768",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37768"
},
{
"name": "CVE-2025-37970",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37970"
},
{
"name": "CVE-2025-37905",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37905"
},
{
"name": "CVE-2025-38094",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38094"
},
{
"name": "CVE-2025-37967",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37967"
},
{
"name": "CVE-2025-37885",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37885"
},
{
"name": "CVE-2025-38000",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38000"
},
{
"name": "CVE-2025-37949",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37949"
},
{
"name": "CVE-2024-56751",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56751"
},
{
"name": "CVE-2024-46774",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-46774"
},
{
"name": "CVE-2025-38083",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38083"
},
{
"name": "CVE-2024-54458",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-54458"
},
{
"name": "CVE-2025-37840",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37840"
},
{
"name": "CVE-2024-26739",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-26739"
},
{
"name": "CVE-2024-35866",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-35866"
},
{
"name": "CVE-2024-49989",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49989"
},
{
"name": "CVE-2024-36908",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-36908"
},
{
"name": "CVE-2025-37982",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37982"
},
{
"name": "CVE-2025-37992",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37992"
},
{
"name": "CVE-2025-37932",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37932"
},
{
"name": "CVE-2025-37890",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37890"
},
{
"name": "CVE-2025-37914",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37914"
},
{
"name": "CVE-2025-37794",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37794"
},
{
"name": "CVE-2025-37836",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37836"
},
{
"name": "CVE-2024-49883",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49883"
},
{
"name": "CVE-2024-50258",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50258"
},
{
"name": "CVE-2024-42322",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42322"
},
{
"name": "CVE-2025-37771",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37771"
},
{
"name": "CVE-2025-37998",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37998"
},
{
"name": "CVE-2025-23163",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23163"
},
{
"name": "CVE-2024-56662",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56662"
},
{
"name": "CVE-2025-37757",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37757"
},
{
"name": "CVE-2025-38177",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38177"
},
{
"name": "CVE-2025-38009",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38009"
},
{
"name": "CVE-2025-38001",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38001"
},
{
"name": "CVE-2025-37817",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37817"
},
{
"name": "CVE-2025-37838",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37838"
},
{
"name": "CVE-2025-37749",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37749"
},
{
"name": "CVE-2024-38541",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-38541"
},
{
"name": "CVE-2025-37756",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37756"
},
{
"name": "CVE-2023-52885",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52885"
},
{
"name": "CVE-2025-37994",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37994"
},
{
"name": "CVE-2024-38540",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-38540"
},
{
"name": "CVE-2025-37858",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37858"
},
{
"name": "CVE-2025-37780",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37780"
},
{
"name": "CVE-2025-37995",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37995"
},
{
"name": "CVE-2025-23156",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23156"
},
{
"name": "CVE-2025-23157",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23157"
},
{
"name": "CVE-2024-56748",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56748"
},
{
"name": "CVE-2025-37808",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37808"
},
{
"name": "CVE-2025-37997",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37997"
},
{
"name": "CVE-2025-37805",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37805"
},
{
"name": "CVE-2024-50073",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50073"
},
{
"name": "CVE-2025-37990",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37990"
},
{
"name": "CVE-2025-37862",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37862"
},
{
"name": "CVE-2025-37839",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37839"
},
{
"name": "CVE-2025-37913",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37913"
},
{
"name": "CVE-2024-35943",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-35943"
},
{
"name": "CVE-2023-52757",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52757"
},
{
"name": "CVE-2025-37851",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37851"
},
{
"name": "CVE-2023-52975",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52975"
},
{
"name": "CVE-2025-37788",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37788"
},
{
"name": "CVE-2025-37881",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37881"
},
{
"name": "CVE-2025-37909",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37909"
},
{
"name": "CVE-2025-37812",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37812"
},
{
"name": "CVE-2025-37875",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37875"
},
{
"name": "CVE-2022-21546",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-21546"
},
{
"name": "CVE-2025-23140",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23140"
},
{
"name": "CVE-2025-23150",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23150"
},
{
"name": "CVE-2025-23148",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23148"
},
{
"name": "CVE-2025-23147",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23147"
}
],
"initial_release_date": "2025-08-08T00:00:00",
"last_revision_date": "2025-08-08T00:00:00",
"links": [],
"reference": "CERTFR-2025-AVI-0670",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2025-08-08T00:00:00.000000"
}
],
"risks": [
{
"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 un contournement de la politique de s\u00e9curit\u00e9.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux d\u0027Ubuntu",
"vendor_advisories": [
{
"published_at": "2025-07-31",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7683-1",
"url": "https://ubuntu.com/security/notices/USN-7683-1"
},
{
"published_at": "2025-07-31",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7684-2",
"url": "https://ubuntu.com/security/notices/USN-7684-2"
},
{
"published_at": "2025-07-31",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7682-2",
"url": "https://ubuntu.com/security/notices/USN-7682-2"
},
{
"published_at": "2025-07-31",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7681-2",
"url": "https://ubuntu.com/security/notices/USN-7681-2"
},
{
"published_at": "2025-08-05",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7686-1",
"url": "https://ubuntu.com/security/notices/USN-7686-1"
},
{
"published_at": "2025-08-05",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7685-3",
"url": "https://ubuntu.com/security/notices/USN-7685-3"
},
{
"published_at": "2025-08-05",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7685-2",
"url": "https://ubuntu.com/security/notices/USN-7685-2"
},
{
"published_at": "2025-07-31",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7682-3",
"url": "https://ubuntu.com/security/notices/USN-7682-3"
},
{
"published_at": "2025-07-31",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7683-2",
"url": "https://ubuntu.com/security/notices/USN-7683-2"
},
{
"published_at": "2025-08-05",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7685-1",
"url": "https://ubuntu.com/security/notices/USN-7685-1"
},
{
"published_at": "2025-08-05",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7685-4",
"url": "https://ubuntu.com/security/notices/USN-7685-4"
},
{
"published_at": "2025-07-31",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7684-3",
"url": "https://ubuntu.com/security/notices/USN-7684-3"
},
{
"published_at": "2025-07-31",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7683-3",
"url": "https://ubuntu.com/security/notices/USN-7683-3"
},
{
"published_at": "2025-07-31",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7684-1",
"url": "https://ubuntu.com/security/notices/USN-7684-1"
},
{
"published_at": "2025-08-04",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7671-3",
"url": "https://ubuntu.com/security/notices/USN-7671-3"
},
{
"published_at": "2025-08-01",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7682-4",
"url": "https://ubuntu.com/security/notices/USN-7682-4"
}
]
}
CVE-2024-46742 (GCVE-0-2024-46742)
Vulnerability from cvelistv5 – Published: 2024-09-18 07:12 – Updated: 2026-05-11 20:35
VLAI
EPSS
VEX
Title
smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()
Summary
In the Linux kernel, the following vulnerability has been resolved:
smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()
null-ptr-deref will occur when (req_op_level == SMB2_OPLOCK_LEVEL_LEASE)
and parse_lease_state() return NULL.
Fix this by check if 'lease_ctx_info' is NULL.
Additionally, remove the redundant parentheses in
parse_durable_handle_context().
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-29 14:50 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/878f3287835110444… | |
| https://git.kernel.org/stable/c/ec28c35029b7930f3… | |
| https://git.kernel.org/stable/c/07f384c5be1f8633b… | |
| https://git.kernel.org/stable/c/3b692794b81f2ecad… | |
| https://git.kernel.org/stable/c/4e8771a3666c8f216… | |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
0626e6641f6b467447c81dd7678a69c66f7746cf , < 878f32878351104448b86ef5b85d1f8ed6f599fb
(git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < ec28c35029b7930f31117f9284874b63bea4f31b (git) Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 07f384c5be1f8633b13f0a22616e227570450bc6 (git) Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 3b692794b81f2ecad69a4adbba687f3836824ada (git) Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 4e8771a3666c8f216eefd6bd2fd50121c6c437db (git) |
|
| Linux | Linux |
Affected:
5.15
Unaffected: 0 , < 5.15 (semver) Unaffected: 5.15.181 , ≤ 5.15.* (semver) Unaffected: 6.1.135 , ≤ 6.1.* (semver) Unaffected: 6.6.51 , ≤ 6.6.* (semver) Unaffected: 6.10.10 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix) |
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CVE-2024-46751 (GCVE-0-2024-46751)
Vulnerability from cvelistv5 – Published: 2024-09-18 07:12 – Updated: 2026-08-05 11:38
VLAI
EPSS
VEX
Title
btrfs: don't BUG_ON() when 0 reference count at btrfs_lookup_extent_info()
Summary
In the Linux kernel, the following vulnerability has been resolved:
btrfs: don't BUG_ON() when 0 reference count at btrfs_lookup_extent_info()
Instead of doing a BUG_ON() handle the error by returning -EUCLEAN,
aborting the transaction and logging an error message.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-29 14:47 UTC
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/9c309d2434abbe880… | |
| https://git.kernel.org/stable/c/d64807ded1b6054f0… | |
| https://git.kernel.org/stable/c/18eb53a2734ff61b9… | |
| https://git.kernel.org/stable/c/3cfec712a439c5c5f… | |
| https://git.kernel.org/stable/c/ef9a8b73c8b60b27d… | |
| https://git.kernel.org/stable/c/28cb13f29faf62905… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
5d4f98a28c7d334091c1b7744f48a1acdd2a4ae0 , < 9c309d2434abbe880712af7e60da9ead8b6703fe
(git)
Affected: 5d4f98a28c7d334091c1b7744f48a1acdd2a4ae0 , < d64807ded1b6054f066e03d8add6d920f3db9e5d (git) Affected: 5d4f98a28c7d334091c1b7744f48a1acdd2a4ae0 , < 18eb53a2734ff61b9a72c4fef5db7b38cb48ae16 (git) Affected: 5d4f98a28c7d334091c1b7744f48a1acdd2a4ae0 , < 3cfec712a439c5c5f5c718c5c669ee41a898f776 (git) Affected: 5d4f98a28c7d334091c1b7744f48a1acdd2a4ae0 , < ef9a8b73c8b60b27d9db4787e624a3438ffe8428 (git) Affected: 5d4f98a28c7d334091c1b7744f48a1acdd2a4ae0 , < 28cb13f29faf6290597b24b728dc3100c019356f (git) |
|
| Linux | Linux |
Affected:
2.6.31
Unaffected: 0 , < 2.6.31 (semver) Unaffected: 5.10.238 , ≤ 5.10.* (semver) Unaffected: 5.15.184 , ≤ 5.15.* (semver) Unaffected: 6.1.140 , ≤ 6.1.* (semver) Unaffected: 6.6.92 , ≤ 6.6.* (semver) Unaffected: 6.10.10 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix) |
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CVE-2024-46774 (GCVE-0-2024-46774)
Vulnerability from cvelistv5 – Published: 2024-09-18 07:12 – Updated: 2026-05-11 20:36
VLAI
EPSS
VEX
Title
powerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas()
Summary
In the Linux kernel, the following vulnerability has been resolved:
powerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas()
Smatch warns:
arch/powerpc/kernel/rtas.c:1932 __do_sys_rtas() warn: potential
spectre issue 'args.args' [r] (local cap)
The 'nargs' and 'nret' locals come directly from a user-supplied
buffer and are used as indexes into a small stack-based array and as
inputs to copy_to_user() after they are subject to bounds checks.
Use array_index_nospec() after the bounds checks to clamp these values
for speculative execution.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-29 14:39 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/d2834ff1d9641a869… | |
| https://git.kernel.org/stable/c/a262c2dc833f2fe1b… | |
| https://git.kernel.org/stable/c/b137af795399d8b65… | |
| https://git.kernel.org/stable/c/1f1feff02e9da0dd0… | |
| https://git.kernel.org/stable/c/68d8156480940b792… | |
| https://git.kernel.org/stable/c/0974d03eb47938446… | |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d2834ff1d9641a8695a09ea79cd901c7b6d4d05f
(git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < a262c2dc833f2fe1bd5c53a4d899e7077d3b1da9 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b137af795399d8b657bad1646c18561530f35ed1 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1f1feff02e9da0dd0cdb195c428c42b5f9b6c771 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 68d8156480940b79227d58865ec5d2947b9384a8 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 0974d03eb479384466d828d65637814bee6b26d7 (git) |
|
| Linux | Linux |
Affected:
2.6.12
Unaffected: 0 , < 2.6.12 (semver) Unaffected: 5.10.237 , ≤ 5.10.* (semver) Unaffected: 5.15.181 , ≤ 5.15.* (semver) Unaffected: 6.1.135 , ≤ 6.1.* (semver) Unaffected: 6.6.88 , ≤ 6.6.* (semver) Unaffected: 6.10.10 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix) |
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CVE-2024-46787 (GCVE-0-2024-46787)
Vulnerability from cvelistv5 – Published: 2024-09-18 07:12 – Updated: 2026-08-05 11:38
VLAI
EPSS
VEX
Title
userfaultfd: fix checks for huge PMDs
Summary
In the Linux kernel, the following vulnerability has been resolved:
userfaultfd: fix checks for huge PMDs
Patch series "userfaultfd: fix races around pmd_trans_huge() check", v2.
The pmd_trans_huge() code in mfill_atomic() is wrong in three different
ways depending on kernel version:
1. The pmd_trans_huge() check is racy and can lead to a BUG_ON() (if you hit
the right two race windows) - I've tested this in a kernel build with
some extra mdelay() calls. See the commit message for a description
of the race scenario.
On older kernels (before 6.5), I think the same bug can even
theoretically lead to accessing transhuge page contents as a page table
if you hit the right 5 narrow race windows (I haven't tested this case).
2. As pointed out by Qi Zheng, pmd_trans_huge() is not sufficient for
detecting PMDs that don't point to page tables.
On older kernels (before 6.5), you'd just have to win a single fairly
wide race to hit this.
I've tested this on 6.1 stable by racing migration (with a mdelay()
patched into try_to_migrate()) against UFFDIO_ZEROPAGE - on my x86
VM, that causes a kernel oops in ptlock_ptr().
3. On newer kernels (>=6.5), for shmem mappings, khugepaged is allowed
to yank page tables out from under us (though I haven't tested that),
so I think the BUG_ON() checks in mfill_atomic() are just wrong.
I decided to write two separate fixes for these (one fix for bugs 1+2, one
fix for bug 3), so that the first fix can be backported to kernels
affected by bugs 1+2.
This patch (of 2):
This fixes two issues.
I discovered that the following race can occur:
mfill_atomic other thread
============ ============
<zap PMD>
pmdp_get_lockless() [reads none pmd]
<bail if trans_huge>
<if none:>
<pagefault creates transhuge zeropage>
__pte_alloc [no-op]
<zap PMD>
<bail if pmd_trans_huge(*dst_pmd)>
BUG_ON(pmd_none(*dst_pmd))
I have experimentally verified this in a kernel with extra mdelay() calls;
the BUG_ON(pmd_none(*dst_pmd)) triggers.
On kernels newer than commit 0d940a9b270b ("mm/pgtable: allow
pte_offset_map[_lock]() to fail"), this can't lead to anything worse than
a BUG_ON(), since the page table access helpers are actually designed to
deal with page tables concurrently disappearing; but on older kernels
(<=6.4), I think we could probably theoretically race past the two
BUG_ON() checks and end up treating a hugepage as a page table.
The second issue is that, as Qi Zheng pointed out, there are other types
of huge PMDs that pmd_trans_huge() can't catch: devmap PMDs and swap PMDs
(in particular, migration PMDs).
On <=6.4, this is worse than the first issue: If mfill_atomic() runs on a
PMD that contains a migration entry (which just requires winning a single,
fairly wide race), it will pass the PMD to pte_offset_map_lock(), which
assumes that the PMD points to a page table.
Breakage follows: First, the kernel tries to take the PTE lock (which will
crash or maybe worse if there is no "struct page" for the address bits in
the migration entry PMD - I think at least on X86 there usually is no
corresponding "struct page" thanks to the PTE inversion mitigation, amd64
looks different).
If that didn't crash, the kernel would next try to write a PTE into what
it wrongly thinks is a page table.
As part of fixing these issues, get rid of the check for pmd_trans_huge()
before __pte_alloc() - that's redundant, we're going to have to check for
that after the __pte_alloc() anyway.
Backport note: pmdp_get_lockless() is pmd_read_atomic() in older kernels.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-29 14:28 UTC
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
c1a4de99fada21e2e9251e52cbb51eff5aadc757 , < 3c6b4bcf37845c9359aed926324bed66bdd2448d
(git)
Affected: c1a4de99fada21e2e9251e52cbb51eff5aadc757 , < 98cc18b1b71e23fe81a5194ed432b20c2d81a01a (git) Affected: c1a4de99fada21e2e9251e52cbb51eff5aadc757 , < 71c186efc1b2cf1aeabfeff3b9bd5ac4c5ac14d8 (git) |
|
| Linux | Linux |
Affected:
4.3
Unaffected: 0 , < 4.3 (semver) Unaffected: 6.6.51 , ≤ 6.6.* (semver) Unaffected: 6.10.10 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix) |
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"value": "AV:L - The vulnerability is reached through the `userfaultfd(2)` syscall (or `/dev/userfaultfd`) followed by `UFFDIO_REGISTER` and `UFFDIO_COPY`/`UFFDIO_ZEROPAGE` ioctls on the attacker\u0027s own address space. This requires local execution on the target system; there is no remote or adjacent network path into `mm/userfaultfd.c`.\nAC:L - The attacker controls both sides of the race entirely from their own threads \u2014 one thread spins on `UFFDIO_ZEROPAGE`/`UFFDIO_COPY` while another drives `MADV_DONTNEED`/THP faults or forces PMD migration via `move_pages()`, NUMA balancing, or compaction \u2014 and the operation can be retried in a tight loop with no lockout or rate limit. The commit author characterizes the migration variant as \"a single, fairly wide race,\" and THP is enabled in essentially all production kernel configurations.\nPR:L - `userfaultfd_syscall_allowed()` returns true unconditionally when `UFFD_USER_MODE_ONLY` is set, so any unprivileged local user obtains a userfaultfd regardless of `CAP_SYS_PTRACE` or the `vm.unprivileged_userfaultfd` sysctl; on kernels in the affected range below 5.11 the syscall was unrestricted or defaulted to permitted. `validate_dst_vma()` only requires the target VMA to be uffd-registered, which the attacker does to their own mapping.\nUI:N - The attacker\u0027s own threads perform every step \u2014 creating the uffd, registering the VMA, and racing the ioctl against PMD teardown/migration. No victim action or interaction is involved.\nS:U - The corruption occurs in kernel page-table handling for the attacker\u0027s own mm and stays within the kernel\u0027s security authority, which is the standard local privilege-escalation scope. No hypervisor, IOMMU, or other trust boundary is crossed.\nC:H - On kernels \u22646.4 the kernel passes a migration/huge PMD to `pte_offset_map_lock()` and then writes a PTE into memory that is actually transhuge page contents the attacker has mapped, disclosing kernel-generated physical addresses and PTE flags. The resulting page-table-injection primitive can be leveraged into arbitrary physical memory reads.\nI:H - `set_pte_at()` writes a PTE into non-page-table memory at an attacker-influenced location, and `spin_lock()` is taken on a wild `ptlock_ptr()` derived from attacker-influenced PFN bits \u2014 both are kernel write primitives. Injecting attacker-controlled data into a structure used as a page table is a well-known route to arbitrary write and full control-flow hijack.\nA:H - The race reliably reaches `BUG_ON(pmd_none(*dst_pmd))`, which the author experimentally verified, and the migration-PMD variant produced a confirmed kernel oops in `ptlock_ptr()` on 6.1 stable. Either outcome is a kernel panic/oops, and it can be triggered repeatedly by any local user."
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CVE-2024-46816 (GCVE-0-2024-46816)
Vulnerability from cvelistv5 – Published: 2024-09-27 12:35 – Updated: 2026-08-05 11:38
VLAI
EPSS
VEX
Title
drm/amd/display: Stop amdgpu_dm initialize when link nums greater than max_links
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Stop amdgpu_dm initialize when link nums greater than max_links
[Why]
Coverity report OVERRUN warning. There are
only max_links elements within dc->links. link
count could up to AMDGPU_DM_MAX_DISPLAY_INDEX 31.
[How]
Make sure link count less than max_links.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-29 14:17 UTC
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/e2411b6abf6e5d6c3… | |
| https://git.kernel.org/stable/c/e3cd0d8362de47f61… | |
| https://git.kernel.org/stable/c/13080d052c995aee1… | |
| https://git.kernel.org/stable/c/c84632096722fd312… | |
| https://git.kernel.org/stable/c/36c39a8dcce210649… | |
| https://git.kernel.org/stable/c/cf8b16857db702ceb… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < e2411b6abf6e5d6c33d0450846673cdf536f0ba4
(git)
Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < e3cd0d8362de47f613bfdf315b3f3a9ab71e66bf (git) Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 13080d052c995aee14695a5b740c245121eb2bcc (git) Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < c84632096722fd31251f0957fafc9e90d9a247fd (git) Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 36c39a8dcce210649f2f45f252abaa09fcc1ae87 (git) Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < cf8b16857db702ceb8d52f9219a4613363e2b1cf (git) |
|
| Linux | Linux |
Affected:
4.15
Unaffected: 0 , < 4.15 (semver) Unaffected: 5.10.237 , ≤ 5.10.* (semver) Unaffected: 5.15.181 , ≤ 5.15.* (semver) Unaffected: 6.1.135 , ≤ 6.1.* (semver) Unaffected: 6.6.88 , ≤ 6.6.* (semver) Unaffected: 6.10.9 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix) |
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"dateReserved": "2024-09-11T15:12:18.283Z",
"dateUpdated": "2026-08-05T11:38:47.072Z",
"state": "PUBLISHED"
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"dataType": "CVE_RECORD",
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CVE-2024-49883 (GCVE-0-2024-49883)
Vulnerability from cvelistv5 – Published: 2024-10-21 18:01 – Updated: 2026-08-05 11:40
VLAI
EPSS
VEX
Title
ext4: aovid use-after-free in ext4_ext_insert_extent()
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: aovid use-after-free in ext4_ext_insert_extent()
As Ojaswin mentioned in Link, in ext4_ext_insert_extent(), if the path is
reallocated in ext4_ext_create_new_leaf(), we'll use the stale path and
cause UAF. Below is a sample trace with dummy values:
ext4_ext_insert_extent
path = *ppath = 2000
ext4_ext_create_new_leaf(ppath)
ext4_find_extent(ppath)
path = *ppath = 2000
if (depth > path[0].p_maxdepth)
kfree(path = 2000);
*ppath = path = NULL;
path = kcalloc() = 3000
*ppath = 3000;
return path;
/* here path is still 2000, UAF! */
eh = path[depth].p_hdr
==================================================================
BUG: KASAN: slab-use-after-free in ext4_ext_insert_extent+0x26d4/0x3330
Read of size 8 at addr ffff8881027bf7d0 by task kworker/u36:1/179
CPU: 3 UID: 0 PID: 179 Comm: kworker/u6:1 Not tainted 6.11.0-rc2-dirty #866
Call Trace:
<TASK>
ext4_ext_insert_extent+0x26d4/0x3330
ext4_ext_map_blocks+0xe22/0x2d40
ext4_map_blocks+0x71e/0x1700
ext4_do_writepages+0x1290/0x2800
[...]
Allocated by task 179:
ext4_find_extent+0x81c/0x1f70
ext4_ext_map_blocks+0x146/0x2d40
ext4_map_blocks+0x71e/0x1700
ext4_do_writepages+0x1290/0x2800
ext4_writepages+0x26d/0x4e0
do_writepages+0x175/0x700
[...]
Freed by task 179:
kfree+0xcb/0x240
ext4_find_extent+0x7c0/0x1f70
ext4_ext_insert_extent+0xa26/0x3330
ext4_ext_map_blocks+0xe22/0x2d40
ext4_map_blocks+0x71e/0x1700
ext4_do_writepages+0x1290/0x2800
ext4_writepages+0x26d/0x4e0
do_writepages+0x175/0x700
[...]
==================================================================
So use *ppath to update the path to avoid the above problem.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-22 13:45 UTC
Assigner
References
11 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/e17ebe4fdd7665c93… | |
| https://git.kernel.org/stable/c/975ca06f3fd154c5f… | |
| https://git.kernel.org/stable/c/5e811066c5ab709b0… | |
| https://git.kernel.org/stable/c/9df59009dfc6d9fc1… | |
| https://git.kernel.org/stable/c/51db04892a993cace… | |
| https://git.kernel.org/stable/c/8162ee5d94b8c0351… | |
| https://git.kernel.org/stable/c/beb7b66fb489041c5… | |
| https://git.kernel.org/stable/c/bfed082ce4b1ce634… | |
| https://git.kernel.org/stable/c/a164f3a432aae62ca… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
10809df84a4d868db61af621bae3658494165279 , < e17ebe4fdd7665c93ae9459ba40fcdfb76769ac1
(git)
Affected: 10809df84a4d868db61af621bae3658494165279 , < 975ca06f3fd154c5f7742083e7b2574c57d1c0c3 (git) Affected: 10809df84a4d868db61af621bae3658494165279 , < 5e811066c5ab709b070659197dccfb80ab650ddd (git) Affected: 10809df84a4d868db61af621bae3658494165279 , < 9df59009dfc6d9fc1bd9ddf6c5ab6e56d6ed887a (git) Affected: 10809df84a4d868db61af621bae3658494165279 , < 51db04892a993cace63415be99848970a0f15ef2 (git) Affected: 10809df84a4d868db61af621bae3658494165279 , < 8162ee5d94b8c0351be0a9321be134872a7654a1 (git) Affected: 10809df84a4d868db61af621bae3658494165279 , < beb7b66fb489041c50c6473100b383f7a51648fc (git) Affected: 10809df84a4d868db61af621bae3658494165279 , < bfed082ce4b1ce6349b05c09a0fa4f3da35ecb1b (git) Affected: 10809df84a4d868db61af621bae3658494165279 , < a164f3a432aae62ca23d03e6d926b122ee5b860d (git) |
|
| Linux | Linux |
Affected:
3.18
Unaffected: 0 , < 3.18 (semver) Unaffected: 4.19.323 , ≤ 4.19.* (semver) Unaffected: 5.4.285 , ≤ 5.4.* (semver) Unaffected: 5.10.227 , ≤ 5.10.* (semver) Unaffected: 5.15.168 , ≤ 5.15.* (semver) Unaffected: 6.1.113 , ≤ 6.1.* (semver) Unaffected: 6.6.55 , ≤ 6.6.* (semver) Unaffected: 6.10.14 , ≤ 6.10.* (semver) Unaffected: 6.11.3 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix) |
{
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"status": "unaffected",
"version": "5.4.285",
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{
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"status": "unaffected",
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: aovid use-after-free in ext4_ext_insert_extent()\n\nAs Ojaswin mentioned in Link, in ext4_ext_insert_extent(), if the path is\nreallocated in ext4_ext_create_new_leaf(), we\u0027ll use the stale path and\ncause UAF. Below is a sample trace with dummy values:\n\next4_ext_insert_extent\n path = *ppath = 2000\n ext4_ext_create_new_leaf(ppath)\n ext4_find_extent(ppath)\n path = *ppath = 2000\n if (depth \u003e path[0].p_maxdepth)\n kfree(path = 2000);\n *ppath = path = NULL;\n path = kcalloc() = 3000\n *ppath = 3000;\n return path;\n /* here path is still 2000, UAF! */\n eh = path[depth].p_hdr\n\n==================================================================\nBUG: KASAN: slab-use-after-free in ext4_ext_insert_extent+0x26d4/0x3330\nRead of size 8 at addr ffff8881027bf7d0 by task kworker/u36:1/179\nCPU: 3 UID: 0 PID: 179 Comm: kworker/u6:1 Not tainted 6.11.0-rc2-dirty #866\nCall Trace:\n \u003cTASK\u003e\n ext4_ext_insert_extent+0x26d4/0x3330\n ext4_ext_map_blocks+0xe22/0x2d40\n ext4_map_blocks+0x71e/0x1700\n ext4_do_writepages+0x1290/0x2800\n[...]\n\nAllocated by task 179:\n ext4_find_extent+0x81c/0x1f70\n ext4_ext_map_blocks+0x146/0x2d40\n ext4_map_blocks+0x71e/0x1700\n ext4_do_writepages+0x1290/0x2800\n ext4_writepages+0x26d/0x4e0\n do_writepages+0x175/0x700\n[...]\n\nFreed by task 179:\n kfree+0xcb/0x240\n ext4_find_extent+0x7c0/0x1f70\n ext4_ext_insert_extent+0xa26/0x3330\n ext4_ext_map_blocks+0xe22/0x2d40\n ext4_map_blocks+0x71e/0x1700\n ext4_do_writepages+0x1290/0x2800\n ext4_writepages+0x26d/0x4e0\n do_writepages+0x175/0x700\n[...]\n==================================================================\n\nSo use *ppath to update the path to avoid the above problem."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The vulnerable code is reached only through local filesystem operations \u2014 write(2)/writeback via ext4_do_writepages \u2192 ext4_map_blocks \u2192 ext4_ext_map_blocks, direct I/O, and fallocate(2) \u2014 on a mounted ext4 volume. ext4 is a local filesystem subsystem with no network protocol handler in the path.\nAC:L - This is a deterministic stale-pointer logic bug, not a race: the attacker fully controls file fragmentation and therefore the extent-tree depth that forces ext4_ext_create_new_leaf() \u2192 ext4_ext_grow_indepth() \u2192 the reallocating ext4_find_extent(). The attacker also picks the depth so the freed kcalloc(depth+2, 48) object and the replacement land in different kmalloc size classes, leaving the freed object reclaimable by their own spraying thread.\nPR:L - There is no capable() or CAP_* check anywhere in fs/ext4/extents.c; any unprivileged local user with write access to an ext4 filesystem (/tmp, /home, Android /data, or any user-writable mount) reaches ext4_ext_insert_extent() with plain write() and fallocate() calls. No user-namespace trick or elevated privilege is needed.\nUI:N - The attacker triggers the entire sequence with their own syscalls on their own files on an already-mounted filesystem. No victim action such as mounting a crafted image or opening a supplied file is required.\nS:U - The use-after-free is confined to the kernel\u0027s own slab memory and the ext4 extent path array, so all impact stays within the kernel security authority on the same host. No hypervisor, IOMMU, or sandbox boundary is crossed.\nC:H - The freed path array is a general-cache kmalloc object the attacker can reclaim and populate via heap spraying, giving control over path[depth].p_hdr, p_ext and p_bh, which are dereferenced as kernel pointers for extent-header and buffer_head reads. Per use-after-free scoring guidance this reclaim-and-read primitive is treated as arbitrary kernel memory disclosure.\nI:H - Unlike a read-only UAF, the post-free code writes through the stale pointers: memmove(nearex+1, nearex, len * sizeof(struct ext4_extent)) with attacker-influenced source, destination and length, le16_add_cpu(\u0026eh-\u003eeh_entries, 1), a 12-byte extent store of attacker-chosen logical/physical block values, and ext4_ext_get_access()/ext4_ext_dirty() on a stale buffer_head fed into jbd2. That is a controlled kernel write primitive suitable for privilege escalation.\nA:H - Dereferencing the freed path array in the writeback path yields a garbage extent header and buffer_head, producing the KASAN slab-use-after-free oops shown in the commit message, or a panic from the subsequent memmove and journal operations. Any use-after-free reliably crashes the kernel even when not fully weaponized."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T11:40:21.427Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
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"url": "https://git.kernel.org/stable/c/e17ebe4fdd7665c93ae9459ba40fcdfb76769ac1"
},
{
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],
"title": "ext4: aovid use-after-free in ext4_ext_insert_extent()",
"x_generator": {
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"cveMetadata": {
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"cveId": "CVE-2024-49883",
"datePublished": "2024-10-21T18:01:20.827Z",
"dateReserved": "2024-10-21T12:17:06.021Z",
"dateUpdated": "2026-08-05T11:40:21.427Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2024-49950 (GCVE-0-2024-49950)
Vulnerability from cvelistv5 – Published: 2024-10-21 18:02 – Updated: 2026-08-05 11:40
VLAI
EPSS
VEX
Title
Bluetooth: L2CAP: Fix uaf in l2cap_connect
Summary
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: L2CAP: Fix uaf in l2cap_connect
[Syzbot reported]
BUG: KASAN: slab-use-after-free in l2cap_connect.constprop.0+0x10d8/0x1270 net/bluetooth/l2cap_core.c:3949
Read of size 8 at addr ffff8880241e9800 by task kworker/u9:0/54
CPU: 0 UID: 0 PID: 54 Comm: kworker/u9:0 Not tainted 6.11.0-rc6-syzkaller-00268-g788220eee30d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: hci2 hci_rx_work
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:119
print_address_description mm/kasan/report.c:377 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:488
kasan_report+0xd9/0x110 mm/kasan/report.c:601
l2cap_connect.constprop.0+0x10d8/0x1270 net/bluetooth/l2cap_core.c:3949
l2cap_connect_req net/bluetooth/l2cap_core.c:4080 [inline]
l2cap_bredr_sig_cmd net/bluetooth/l2cap_core.c:4772 [inline]
l2cap_sig_channel net/bluetooth/l2cap_core.c:5543 [inline]
l2cap_recv_frame+0xf0b/0x8eb0 net/bluetooth/l2cap_core.c:6825
l2cap_recv_acldata+0x9b4/0xb70 net/bluetooth/l2cap_core.c:7514
hci_acldata_packet net/bluetooth/hci_core.c:3791 [inline]
hci_rx_work+0xaab/0x1610 net/bluetooth/hci_core.c:4028
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
...
Freed by task 5245:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:579
poison_slab_object+0xf7/0x160 mm/kasan/common.c:240
__kasan_slab_free+0x32/0x50 mm/kasan/common.c:256
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2256 [inline]
slab_free mm/slub.c:4477 [inline]
kfree+0x12a/0x3b0 mm/slub.c:4598
l2cap_conn_free net/bluetooth/l2cap_core.c:1810 [inline]
kref_put include/linux/kref.h:65 [inline]
l2cap_conn_put net/bluetooth/l2cap_core.c:1822 [inline]
l2cap_conn_del+0x59d/0x730 net/bluetooth/l2cap_core.c:1802
l2cap_connect_cfm+0x9e6/0xf80 net/bluetooth/l2cap_core.c:7241
hci_connect_cfm include/net/bluetooth/hci_core.h:1960 [inline]
hci_conn_failed+0x1c3/0x370 net/bluetooth/hci_conn.c:1265
hci_abort_conn_sync+0x75a/0xb50 net/bluetooth/hci_sync.c:5583
abort_conn_sync+0x197/0x360 net/bluetooth/hci_conn.c:2917
hci_cmd_sync_work+0x1a4/0x410 net/bluetooth/hci_sync.c:328
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-22 13:36 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/686e05c9dbd68766c… | |
| https://git.kernel.org/stable/c/b22346eec479a30bf… | |
| https://git.kernel.org/stable/c/b90907696c30172b8… | |
| https://git.kernel.org/stable/c/78d30ce16fdf9c301… | |
| https://git.kernel.org/stable/c/a1c6174e23df10b8e… | |
| https://git.kernel.org/stable/c/333b4fd11e89b29c8… | |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
7b064edae38d62d8587a8c574f93b53ce75ae749 , < 686e05c9dbd68766c6bda5f31f7e077f36a7fb29
(git)
Affected: 7b064edae38d62d8587a8c574f93b53ce75ae749 , < b22346eec479a30bfa4a02ad2c551b54809694d0 (git) Affected: 7b064edae38d62d8587a8c574f93b53ce75ae749 , < b90907696c30172b809aa3dd2f0caffae761e4c6 (git) Affected: 7b064edae38d62d8587a8c574f93b53ce75ae749 , < 78d30ce16fdf9c301bcd8b83ce613cea079cea83 (git) Affected: 7b064edae38d62d8587a8c574f93b53ce75ae749 , < a1c6174e23df10b8e5770e82d63bc6e2118a3dc7 (git) Affected: 7b064edae38d62d8587a8c574f93b53ce75ae749 , < 333b4fd11e89b29c84c269123f871883a30be586 (git) |
|
| Linux | Linux |
Affected:
3.8
Unaffected: 0 , < 3.8 (semver) Unaffected: 5.15.174 , ≤ 5.15.* (semver) Unaffected: 6.1.118 , ≤ 6.1.* (semver) Unaffected: 6.6.55 , ≤ 6.6.* (semver) Unaffected: 6.10.14 , ≤ 6.10.* (semver) Unaffected: 6.11.3 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix) |
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"version": "6.11.3",
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{
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"cpeApplicability": [
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"vulnerable": true
},
{
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix uaf in l2cap_connect\n\n[Syzbot reported]\nBUG: KASAN: slab-use-after-free in l2cap_connect.constprop.0+0x10d8/0x1270 net/bluetooth/l2cap_core.c:3949\nRead of size 8 at addr ffff8880241e9800 by task kworker/u9:0/54\n\nCPU: 0 UID: 0 PID: 54 Comm: kworker/u9:0 Not tainted 6.11.0-rc6-syzkaller-00268-g788220eee30d #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024\nWorkqueue: hci2 hci_rx_work\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:93 [inline]\n dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:119\n print_address_description mm/kasan/report.c:377 [inline]\n print_report+0xc3/0x620 mm/kasan/report.c:488\n kasan_report+0xd9/0x110 mm/kasan/report.c:601\n l2cap_connect.constprop.0+0x10d8/0x1270 net/bluetooth/l2cap_core.c:3949\n l2cap_connect_req net/bluetooth/l2cap_core.c:4080 [inline]\n l2cap_bredr_sig_cmd net/bluetooth/l2cap_core.c:4772 [inline]\n l2cap_sig_channel net/bluetooth/l2cap_core.c:5543 [inline]\n l2cap_recv_frame+0xf0b/0x8eb0 net/bluetooth/l2cap_core.c:6825\n l2cap_recv_acldata+0x9b4/0xb70 net/bluetooth/l2cap_core.c:7514\n hci_acldata_packet net/bluetooth/hci_core.c:3791 [inline]\n hci_rx_work+0xaab/0x1610 net/bluetooth/hci_core.c:4028\n process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231\n process_scheduled_works kernel/workqueue.c:3312 [inline]\n worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389\n kthread+0x2c1/0x3a0 kernel/kthread.c:389\n ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244\n...\n\nFreed by task 5245:\n kasan_save_stack+0x33/0x60 mm/kasan/common.c:47\n kasan_save_track+0x14/0x30 mm/kasan/common.c:68\n kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:579\n poison_slab_object+0xf7/0x160 mm/kasan/common.c:240\n __kasan_slab_free+0x32/0x50 mm/kasan/common.c:256\n kasan_slab_free include/linux/kasan.h:184 [inline]\n slab_free_hook mm/slub.c:2256 [inline]\n slab_free mm/slub.c:4477 [inline]\n kfree+0x12a/0x3b0 mm/slub.c:4598\n l2cap_conn_free net/bluetooth/l2cap_core.c:1810 [inline]\n kref_put include/linux/kref.h:65 [inline]\n l2cap_conn_put net/bluetooth/l2cap_core.c:1822 [inline]\n l2cap_conn_del+0x59d/0x730 net/bluetooth/l2cap_core.c:1802\n l2cap_connect_cfm+0x9e6/0xf80 net/bluetooth/l2cap_core.c:7241\n hci_connect_cfm include/net/bluetooth/hci_core.h:1960 [inline]\n hci_conn_failed+0x1c3/0x370 net/bluetooth/hci_conn.c:1265\n hci_abort_conn_sync+0x75a/0xb50 net/bluetooth/hci_sync.c:5583\n abort_conn_sync+0x197/0x360 net/bluetooth/hci_conn.c:2917\n hci_cmd_sync_work+0x1a4/0x410 net/bluetooth/hci_sync.c:328\n process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231\n process_scheduled_works kernel/workqueue.c:3312 [inline]\n worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389\n kthread+0x2c1/0x3a0 kernel/kthread.c:389\n ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:A - The vulnerable code is reached purely from ACL data received from a remote Bluetooth peer on the BR/EDR L2CAP signalling channel (hci_rx_work \u2192 hci_acldata_packet \u2192 l2cap_recv_acldata \u2192 l2cap_sig_channel \u2192 l2cap_connect_req). Bluetooth range constitutes an adjacent network.\nAC:L - The remote peer controls both sides of the race \u2014 it chooses when to inject the L2CAP connect request relative to link setup (the exact condition named in the Fixes: commit) and can induce the concurrent connection abort by failing the security escalation its own request triggers or by repeated connect/teardown. The attempt is free to repeat until it wins.\nPR:N - L2CAP signalling commands are processed on an unauthenticated, unpaired ACL link; the hci_conn_check_link_mode() security check sits inside l2cap_connect() and executes only after the use-after-free dereference. No credentials or local account are needed.\nUI:N - Processing of an inbound ACL connection and its L2CAP connect request happens automatically in the kernel rx workqueue on any connectable device. No victim action is required.\nS:U - The corruption and its consequences are confined to the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The freed struct l2cap_conn is read back and its embedded pointers (conn-\u003ehcon, conn-\u003ehcon-\u003ehdev) are chased; since the object comes from a general kmalloc cache reclaimable by sprayed data, an attacker can steer those dereferences to disclose arbitrary kernel memory.\nI:H - Execution continues writing into the freed object \u2014 conn-\u003einfo_state, conn-\u003einfo_ident, conn-\u003ehcon-\u003edisc_timeout, a list_add into freed conn-\u003echan_l, and schedule_delayed_work() on a work_struct with an attacker-reclaimable function pointer \u2014 giving a write and control-flow-hijack primitive.\nA:H - The use-after-free reliably oopses the kernel in the Bluetooth rx workqueue (as KASAN reported), and mutex_lock on freed memory plus a queued timer in reclaimed slab cause panics or corruption-induced crashes."
}
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}
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"title": "Bluetooth: L2CAP: Fix uaf in l2cap_connect",
"x_generator": {
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"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"datePublished": "2024-10-21T18:02:06.387Z",
"dateReserved": "2024-10-21T12:17:06.046Z",
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"state": "PUBLISHED"
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CVE-2024-49960 (GCVE-0-2024-49960)
Vulnerability from cvelistv5 – Published: 2024-10-21 18:02 – Updated: 2026-08-05 11:40
VLAI
EPSS
VEX
Title
ext4: fix timer use-after-free on failed mount
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix timer use-after-free on failed mount
Syzbot has found an ODEBUG bug in ext4_fill_super
The del_timer_sync function cancels the s_err_report timer,
which reminds about filesystem errors daily. We should
guarantee the timer is no longer active before kfree(sbi).
When filesystem mounting fails, the flow goes to failed_mount3,
where an error occurs when ext4_stop_mmpd is called, causing
a read I/O failure. This triggers the ext4_handle_error function
that ultimately re-arms the timer,
leaving the s_err_report timer active before kfree(sbi) is called.
Fix the issue by canceling the s_err_report timer after calling ext4_stop_mmpd.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-22 13:35 UTC
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/7aac0c17a8cdf4a32… | |
| https://git.kernel.org/stable/c/22e9b83f0f33bc5a7… | |
| https://git.kernel.org/stable/c/cf3196e5e2f36cd80… | |
| https://git.kernel.org/stable/c/9203817ba46ebba7c… | |
| https://git.kernel.org/stable/c/fa78fb51d396f4f2f… | |
| https://git.kernel.org/stable/c/b85569585d0154d4d… | |
| https://git.kernel.org/stable/c/0ce160c5bdb67081a… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
5e4f5138bd8522ebe231a137682d3857209a2c07 , < 7aac0c17a8cdf4a3236991c1e60435c6a984076c
(git)
Affected: 618f003199c6188e01472b03cdbba227f1dc5f24 , < 22e9b83f0f33bc5a7a3181769d1dccbf021f5b04 (git) Affected: 618f003199c6188e01472b03cdbba227f1dc5f24 , < cf3196e5e2f36cd80dab91ffae402e13935724bc (git) Affected: 618f003199c6188e01472b03cdbba227f1dc5f24 , < 9203817ba46ebba7c865c8de2aba399537b6e891 (git) Affected: 618f003199c6188e01472b03cdbba227f1dc5f24 , < fa78fb51d396f4f2f80f8e96a3b1516f394258be (git) Affected: 618f003199c6188e01472b03cdbba227f1dc5f24 , < b85569585d0154d4db1e4f9e3e6a4731d407feb0 (git) Affected: 618f003199c6188e01472b03cdbba227f1dc5f24 , < 0ce160c5bdb67081a62293028dc85758a8efb22a (git) Affected: cecfdb9cf9a700d1037066173abac0617f6788df (git) Affected: eb7b40d9d3785f7a131fb0b1f89bb6efa46c1833 (git) Affected: 5.10.51 , < 5.10.237 (semver) Affected: 5.12.18 , < 5.13 (semver) Affected: 5.13.3 , < 5.14 (semver) |
|
| Linux | Linux |
Affected:
5.14
Unaffected: 0 , < 5.14 (semver) Unaffected: 5.10.237 , ≤ 5.10.* (semver) Unaffected: 5.15.181 , ≤ 5.15.* (semver) Unaffected: 6.1.118 , ≤ 6.1.* (semver) Unaffected: 6.6.55 , ≤ 6.6.* (semver) Unaffected: 6.10.14 , ≤ 6.10.* (semver) Unaffected: 6.11.3 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix) |
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CVE-2024-49989 (GCVE-0-2024-49989)
Vulnerability from cvelistv5 – Published: 2024-10-21 18:02 – Updated: 2026-05-11 20:43
VLAI
EPSS
VEX
Title
drm/amd/display: fix double free issue during amdgpu module unload
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: fix double free issue during amdgpu module unload
Flexible endpoints use DIGs from available inflexible endpoints,
so only the encoders of inflexible links need to be freed.
Otherwise, a double free issue may occur when unloading the
amdgpu module.
[ 279.190523] RIP: 0010:__slab_free+0x152/0x2f0
[ 279.190577] Call Trace:
[ 279.190580] <TASK>
[ 279.190582] ? show_regs+0x69/0x80
[ 279.190590] ? die+0x3b/0x90
[ 279.190595] ? do_trap+0xc8/0xe0
[ 279.190601] ? do_error_trap+0x73/0xa0
[ 279.190605] ? __slab_free+0x152/0x2f0
[ 279.190609] ? exc_invalid_op+0x56/0x70
[ 279.190616] ? __slab_free+0x152/0x2f0
[ 279.190642] ? asm_exc_invalid_op+0x1f/0x30
[ 279.190648] ? dcn10_link_encoder_destroy+0x19/0x30 [amdgpu]
[ 279.191096] ? __slab_free+0x152/0x2f0
[ 279.191102] ? dcn10_link_encoder_destroy+0x19/0x30 [amdgpu]
[ 279.191469] kfree+0x260/0x2b0
[ 279.191474] dcn10_link_encoder_destroy+0x19/0x30 [amdgpu]
[ 279.191821] link_destroy+0xd7/0x130 [amdgpu]
[ 279.192248] dc_destruct+0x90/0x270 [amdgpu]
[ 279.192666] dc_destroy+0x19/0x40 [amdgpu]
[ 279.193020] amdgpu_dm_fini+0x16e/0x200 [amdgpu]
[ 279.193432] dm_hw_fini+0x26/0x40 [amdgpu]
[ 279.193795] amdgpu_device_fini_hw+0x24c/0x400 [amdgpu]
[ 279.194108] amdgpu_driver_unload_kms+0x4f/0x70 [amdgpu]
[ 279.194436] amdgpu_pci_remove+0x40/0x80 [amdgpu]
[ 279.194632] pci_device_remove+0x3a/0xa0
[ 279.194638] device_remove+0x40/0x70
[ 279.194642] device_release_driver_internal+0x1ad/0x210
[ 279.194647] driver_detach+0x4e/0xa0
[ 279.194650] bus_remove_driver+0x6f/0xf0
[ 279.194653] driver_unregister+0x33/0x60
[ 279.194657] pci_unregister_driver+0x44/0x90
[ 279.194662] amdgpu_exit+0x19/0x1f0 [amdgpu]
[ 279.194939] __do_sys_delete_module.isra.0+0x198/0x2f0
[ 279.194946] __x64_sys_delete_module+0x16/0x20
[ 279.194950] do_syscall_64+0x58/0x120
[ 279.194954] entry_SYSCALL_64_after_hwframe+0x6e/0x76
[ 279.194980] </TASK>
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-22 13:31 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/43c296870740a3a26… | |
| https://git.kernel.org/stable/c/df948b5ba6858d5da… | |
| https://git.kernel.org/stable/c/cf6f3ebd6312d465f… | |
| https://git.kernel.org/stable/c/7af9e6fa63dbd43a6… | |
| https://git.kernel.org/stable/c/3c0ff4de45ce2c5f7… | |
| https://git.kernel.org/stable/c/20b5a8f9f4670a850… | |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 43c296870740a3a264cdca9f18db12e12e9cfbdb
(git)
Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < df948b5ba6858d5da34f622d408e5517057cec07 (git) Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < cf6f3ebd6312d465fee096d1f58089b177c7c67f (git) Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 7af9e6fa63dbd43a61d4ecc8f59426596a75e507 (git) Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 3c0ff4de45ce2c5f7997a1ffa6eefee4b79e6b58 (git) Affected: 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c , < 20b5a8f9f4670a8503aa9fa95ca632e77c6bf55d (git) |
|
| Linux | Linux |
Affected:
4.15
Unaffected: 0 , < 4.15 (semver) Unaffected: 5.15.181 , ≤ 5.15.* (semver) Unaffected: 6.1.129 , ≤ 6.1.* (semver) Unaffected: 6.6.55 , ≤ 6.6.* (semver) Unaffected: 6.10.14 , ≤ 6.10.* (semver) Unaffected: 6.11.3 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix) |
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: fix double free issue during amdgpu module unload\n\nFlexible endpoints use DIGs from available inflexible endpoints,\nso only the encoders of inflexible links need to be freed.\nOtherwise, a double free issue may occur when unloading the\namdgpu module.\n\n[ 279.190523] RIP: 0010:__slab_free+0x152/0x2f0\n[ 279.190577] Call Trace:\n[ 279.190580] \u003cTASK\u003e\n[ 279.190582] ? show_regs+0x69/0x80\n[ 279.190590] ? die+0x3b/0x90\n[ 279.190595] ? do_trap+0xc8/0xe0\n[ 279.190601] ? do_error_trap+0x73/0xa0\n[ 279.190605] ? __slab_free+0x152/0x2f0\n[ 279.190609] ? exc_invalid_op+0x56/0x70\n[ 279.190616] ? __slab_free+0x152/0x2f0\n[ 279.190642] ? asm_exc_invalid_op+0x1f/0x30\n[ 279.190648] ? dcn10_link_encoder_destroy+0x19/0x30 [amdgpu]\n[ 279.191096] ? __slab_free+0x152/0x2f0\n[ 279.191102] ? dcn10_link_encoder_destroy+0x19/0x30 [amdgpu]\n[ 279.191469] kfree+0x260/0x2b0\n[ 279.191474] dcn10_link_encoder_destroy+0x19/0x30 [amdgpu]\n[ 279.191821] link_destroy+0xd7/0x130 [amdgpu]\n[ 279.192248] dc_destruct+0x90/0x270 [amdgpu]\n[ 279.192666] dc_destroy+0x19/0x40 [amdgpu]\n[ 279.193020] amdgpu_dm_fini+0x16e/0x200 [amdgpu]\n[ 279.193432] dm_hw_fini+0x26/0x40 [amdgpu]\n[ 279.193795] amdgpu_device_fini_hw+0x24c/0x400 [amdgpu]\n[ 279.194108] amdgpu_driver_unload_kms+0x4f/0x70 [amdgpu]\n[ 279.194436] amdgpu_pci_remove+0x40/0x80 [amdgpu]\n[ 279.194632] pci_device_remove+0x3a/0xa0\n[ 279.194638] device_remove+0x40/0x70\n[ 279.194642] device_release_driver_internal+0x1ad/0x210\n[ 279.194647] driver_detach+0x4e/0xa0\n[ 279.194650] bus_remove_driver+0x6f/0xf0\n[ 279.194653] driver_unregister+0x33/0x60\n[ 279.194657] pci_unregister_driver+0x44/0x90\n[ 279.194662] amdgpu_exit+0x19/0x1f0 [amdgpu]\n[ 279.194939] __do_sys_delete_module.isra.0+0x198/0x2f0\n[ 279.194946] __x64_sys_delete_module+0x16/0x20\n[ 279.194950] do_syscall_64+0x58/0x120\n[ 279.194954] entry_SYSCALL_64_after_hwframe+0x6e/0x76\n[ 279.194980] \u003c/TASK\u003e"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T20:43:25.612Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/43c296870740a3a264cdca9f18db12e12e9cfbdb"
},
{
"url": "https://git.kernel.org/stable/c/df948b5ba6858d5da34f622d408e5517057cec07"
},
{
"url": "https://git.kernel.org/stable/c/cf6f3ebd6312d465fee096d1f58089b177c7c67f"
},
{
"url": "https://git.kernel.org/stable/c/7af9e6fa63dbd43a61d4ecc8f59426596a75e507"
},
{
"url": "https://git.kernel.org/stable/c/3c0ff4de45ce2c5f7997a1ffa6eefee4b79e6b58"
},
{
"url": "https://git.kernel.org/stable/c/20b5a8f9f4670a8503aa9fa95ca632e77c6bf55d"
}
],
"title": "drm/amd/display: fix double free issue during amdgpu module unload",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-49989",
"datePublished": "2024-10-21T18:02:32.507Z",
"dateReserved": "2024-10-21T12:17:06.054Z",
"dateUpdated": "2026-05-11T20:43:25.612Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2024-50047 (GCVE-0-2024-50047)
Vulnerability from cvelistv5 – Published: 2024-10-21 19:39 – Updated: 2026-08-05 11:41
VLAI
EPSS
VEX
Title
smb: client: fix UAF in async decryption
Summary
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix UAF in async decryption
Doing an async decryption (large read) crashes with a
slab-use-after-free way down in the crypto API.
Reproducer:
# mount.cifs -o ...,seal,esize=1 //srv/share /mnt
# dd if=/mnt/largefile of=/dev/null
...
[ 194.196391] ==================================================================
[ 194.196844] BUG: KASAN: slab-use-after-free in gf128mul_4k_lle+0xc1/0x110
[ 194.197269] Read of size 8 at addr ffff888112bd0448 by task kworker/u77:2/899
[ 194.197707]
[ 194.197818] CPU: 12 UID: 0 PID: 899 Comm: kworker/u77:2 Not tainted 6.11.0-lku-00028-gfca3ca14a17a-dirty #43
[ 194.198400] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.2-3-gd478f380-prebuilt.qemu.org 04/01/2014
[ 194.199046] Workqueue: smb3decryptd smb2_decrypt_offload [cifs]
[ 194.200032] Call Trace:
[ 194.200191] <TASK>
[ 194.200327] dump_stack_lvl+0x4e/0x70
[ 194.200558] ? gf128mul_4k_lle+0xc1/0x110
[ 194.200809] print_report+0x174/0x505
[ 194.201040] ? __pfx__raw_spin_lock_irqsave+0x10/0x10
[ 194.201352] ? srso_return_thunk+0x5/0x5f
[ 194.201604] ? __virt_addr_valid+0xdf/0x1c0
[ 194.201868] ? gf128mul_4k_lle+0xc1/0x110
[ 194.202128] kasan_report+0xc8/0x150
[ 194.202361] ? gf128mul_4k_lle+0xc1/0x110
[ 194.202616] gf128mul_4k_lle+0xc1/0x110
[ 194.202863] ghash_update+0x184/0x210
[ 194.203103] shash_ahash_update+0x184/0x2a0
[ 194.203377] ? __pfx_shash_ahash_update+0x10/0x10
[ 194.203651] ? srso_return_thunk+0x5/0x5f
[ 194.203877] ? crypto_gcm_init_common+0x1ba/0x340
[ 194.204142] gcm_hash_assoc_remain_continue+0x10a/0x140
[ 194.204434] crypt_message+0xec1/0x10a0 [cifs]
[ 194.206489] ? __pfx_crypt_message+0x10/0x10 [cifs]
[ 194.208507] ? srso_return_thunk+0x5/0x5f
[ 194.209205] ? srso_return_thunk+0x5/0x5f
[ 194.209925] ? srso_return_thunk+0x5/0x5f
[ 194.210443] ? srso_return_thunk+0x5/0x5f
[ 194.211037] decrypt_raw_data+0x15f/0x250 [cifs]
[ 194.212906] ? __pfx_decrypt_raw_data+0x10/0x10 [cifs]
[ 194.214670] ? srso_return_thunk+0x5/0x5f
[ 194.215193] smb2_decrypt_offload+0x12a/0x6c0 [cifs]
This is because TFM is being used in parallel.
Fix this by allocating a new AEAD TFM for async decryption, but keep
the existing one for synchronous READ cases (similar to what is done
in smb3_calc_signature()).
Also remove the calls to aead_request_set_callback() and
crypto_wait_req() since it's always going to be a synchronous operation.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-22 13:23 UTC
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/8f14a476abba13144… | |
| https://git.kernel.org/stable/c/ef51c0d544b1518b3… | |
| https://git.kernel.org/stable/c/bce966530fd5542bb… | |
| https://git.kernel.org/stable/c/0809fb86ad13b29e1… | |
| https://git.kernel.org/stable/c/538c26d9bf70c90ed… | |
| https://git.kernel.org/stable/c/b0abcd65ec545701b… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
35cf94a397280b9e27576ac1480f631bdd3e7b70 , < 8f14a476abba13144df5434871a7225fd29af633
(git)
Affected: 35cf94a397280b9e27576ac1480f631bdd3e7b70 , < ef51c0d544b1518b35364480317ab6d3468f205d (git) Affected: 35cf94a397280b9e27576ac1480f631bdd3e7b70 , < bce966530fd5542bbb422cb45ecb775f7a1a6bc3 (git) Affected: 35cf94a397280b9e27576ac1480f631bdd3e7b70 , < 0809fb86ad13b29e1d6d491364fc7ea4fb545995 (git) Affected: 35cf94a397280b9e27576ac1480f631bdd3e7b70 , < 538c26d9bf70c90edc460d18c81008a4e555925a (git) Affected: 35cf94a397280b9e27576ac1480f631bdd3e7b70 , < b0abcd65ec545701b8793e12bc27dc98042b151a (git) |
|
| Linux | Linux |
Affected:
5.4
Unaffected: 0 , < 5.4 (semver) Unaffected: 5.10.237 , ≤ 5.10.* (semver) Unaffected: 5.15.181 , ≤ 5.15.* (semver) Unaffected: 6.1.128 , ≤ 6.1.* (semver) Unaffected: 6.6.57 , ≤ 6.6.* (semver) Unaffected: 6.11.4 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix) |
{
"containers": {
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"id": "CVE-2024-50047",
"options": [
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"role": "CISA Coordinator",
"timestamp": "2024-10-22T13:23:59.456851Z",
"version": "2.0.3"
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"shortName": "CISA-ADP"
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"title": "CISA ADP Vulnrichment"
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"providerMetadata": {
"dateUpdated": "2025-11-03T20:43:16.334Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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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/msg00001.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"fs/smb/client/smb2ops.c",
"fs/smb/client/smb2pdu.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "8f14a476abba13144df5434871a7225fd29af633",
"status": "affected",
"version": "35cf94a397280b9e27576ac1480f631bdd3e7b70",
"versionType": "git"
},
{
"lessThan": "ef51c0d544b1518b35364480317ab6d3468f205d",
"status": "affected",
"version": "35cf94a397280b9e27576ac1480f631bdd3e7b70",
"versionType": "git"
},
{
"lessThan": "bce966530fd5542bbb422cb45ecb775f7a1a6bc3",
"status": "affected",
"version": "35cf94a397280b9e27576ac1480f631bdd3e7b70",
"versionType": "git"
},
{
"lessThan": "0809fb86ad13b29e1d6d491364fc7ea4fb545995",
"status": "affected",
"version": "35cf94a397280b9e27576ac1480f631bdd3e7b70",
"versionType": "git"
},
{
"lessThan": "538c26d9bf70c90edc460d18c81008a4e555925a",
"status": "affected",
"version": "35cf94a397280b9e27576ac1480f631bdd3e7b70",
"versionType": "git"
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{
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"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"fs/smb/client/smb2ops.c",
"fs/smb/client/smb2pdu.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.4"
},
{
"lessThan": "5.4",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.237",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.181",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.128",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.57",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.11.*",
"status": "unaffected",
"version": "6.11.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.12",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.237",
"versionStartIncluding": "5.4",
"vulnerable": true
},
{
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"versionEndExcluding": "5.15.181",
"versionStartIncluding": "5.4",
"vulnerable": true
},
{
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"versionEndExcluding": "6.1.128",
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"vulnerable": true
},
{
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"versionEndExcluding": "6.6.57",
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"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.11.4",
"versionStartIncluding": "5.4",
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},
{
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"vulnerable": true
}
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"negate": false,
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],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix UAF in async decryption\n\nDoing an async decryption (large read) crashes with a\nslab-use-after-free way down in the crypto API.\n\nReproducer:\n # mount.cifs -o ...,seal,esize=1 //srv/share /mnt\n # dd if=/mnt/largefile of=/dev/null\n ...\n [ 194.196391] ==================================================================\n [ 194.196844] BUG: KASAN: slab-use-after-free in gf128mul_4k_lle+0xc1/0x110\n [ 194.197269] Read of size 8 at addr ffff888112bd0448 by task kworker/u77:2/899\n [ 194.197707]\n [ 194.197818] CPU: 12 UID: 0 PID: 899 Comm: kworker/u77:2 Not tainted 6.11.0-lku-00028-gfca3ca14a17a-dirty #43\n [ 194.198400] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.2-3-gd478f380-prebuilt.qemu.org 04/01/2014\n [ 194.199046] Workqueue: smb3decryptd smb2_decrypt_offload [cifs]\n [ 194.200032] Call Trace:\n [ 194.200191] \u003cTASK\u003e\n [ 194.200327] dump_stack_lvl+0x4e/0x70\n [ 194.200558] ? gf128mul_4k_lle+0xc1/0x110\n [ 194.200809] print_report+0x174/0x505\n [ 194.201040] ? __pfx__raw_spin_lock_irqsave+0x10/0x10\n [ 194.201352] ? srso_return_thunk+0x5/0x5f\n [ 194.201604] ? __virt_addr_valid+0xdf/0x1c0\n [ 194.201868] ? gf128mul_4k_lle+0xc1/0x110\n [ 194.202128] kasan_report+0xc8/0x150\n [ 194.202361] ? gf128mul_4k_lle+0xc1/0x110\n [ 194.202616] gf128mul_4k_lle+0xc1/0x110\n [ 194.202863] ghash_update+0x184/0x210\n [ 194.203103] shash_ahash_update+0x184/0x2a0\n [ 194.203377] ? __pfx_shash_ahash_update+0x10/0x10\n [ 194.203651] ? srso_return_thunk+0x5/0x5f\n [ 194.203877] ? crypto_gcm_init_common+0x1ba/0x340\n [ 194.204142] gcm_hash_assoc_remain_continue+0x10a/0x140\n [ 194.204434] crypt_message+0xec1/0x10a0 [cifs]\n [ 194.206489] ? __pfx_crypt_message+0x10/0x10 [cifs]\n [ 194.208507] ? srso_return_thunk+0x5/0x5f\n [ 194.209205] ? srso_return_thunk+0x5/0x5f\n [ 194.209925] ? srso_return_thunk+0x5/0x5f\n [ 194.210443] ? srso_return_thunk+0x5/0x5f\n [ 194.211037] decrypt_raw_data+0x15f/0x250 [cifs]\n [ 194.212906] ? __pfx_decrypt_raw_data+0x10/0x10 [cifs]\n [ 194.214670] ? srso_return_thunk+0x5/0x5f\n [ 194.215193] smb2_decrypt_offload+0x12a/0x6c0 [cifs]\n\nThis is because TFM is being used in parallel.\n\nFix this by allocating a new AEAD TFM for async decryption, but keep\nthe existing one for synchronous READ cases (similar to what is done\nin smb3_calc_signature()).\n\nAlso remove the calls to aead_request_set_callback() and\ncrypto_wait_req() since it\u0027s always going to be a synchronous operation."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:N - The UAF occurs while the CIFS/SMB3 client decrypts transform-encrypted READ responses received from a remote SMB server over TCP/445, on data (transform header, message size, nonce, ciphertext) fully supplied by that peer. A malicious, compromised, or MITM\u0027d server drives the vulnerable path remotely, and can itself force encryption on via SMB2_SESSION_FLAG_ENCRYPT_DATA / SHI1005_FLAGS_ENCRYPT_DATA.\nAC:L - The server controls both sides of the race by pipelining multiple large encrypted READ responses, guaranteeing concurrent smb3decryptd workers on the shared TFM; the commit\u0027s reproducer is an ordinary `dd` of a large file, so the corruption occurs deterministically in normal operation rather than requiring a rare window.\nPR:N - The remote SMB server needs no privileges on the client to send the encrypted read responses that trigger the parallel TFM use, and locally any unprivileged user with read access to the mounted share can issue the concurrent large reads.\nUI:N - No victim action is needed beyond an already-established mount; the UAF fires during routine background file reads on the existing connection.\nS:U - The corruption is confined to kernel memory within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Freed slab memory (the gf128mul ghash key table and TFM context) is read by the crypto engine, and heap grooming lets an attacker place chosen objects there for arbitrary kernel memory disclosure; cross-worker key clobbering can also expose data decrypted under the wrong session key.\nI:H - The crypto transform writes into the freed, reallocated slab object, giving a heap write primitive over attacker-groomable memory that is leveragable for control-flow hijack, and concurrent setkey/setauthsize corrupt in-flight crypto state.\nA:H - The use-after-free reliably produces a KASAN slab-use-after-free and kernel oops in the smb3decryptd workqueue, panicking or hanging the client; it can be retriggered at will."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T11:41:16.159Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/8f14a476abba13144df5434871a7225fd29af633"
},
{
"url": "https://git.kernel.org/stable/c/ef51c0d544b1518b35364480317ab6d3468f205d"
},
{
"url": "https://git.kernel.org/stable/c/bce966530fd5542bbb422cb45ecb775f7a1a6bc3"
},
{
"url": "https://git.kernel.org/stable/c/0809fb86ad13b29e1d6d491364fc7ea4fb545995"
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{
"url": "https://git.kernel.org/stable/c/538c26d9bf70c90edc460d18c81008a4e555925a"
},
{
"url": "https://git.kernel.org/stable/c/b0abcd65ec545701b8793e12bc27dc98042b151a"
}
],
"title": "smb: client: fix UAF in async decryption",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-50047",
"datePublished": "2024-10-21T19:39:44.430Z",
"dateReserved": "2024-10-21T12:17:06.071Z",
"dateUpdated": "2026-08-05T11:41:16.159Z",
"state": "PUBLISHED"
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"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Trend slope:
-
(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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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