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CERTFR-2024-AVI-1108
Vulnerability from certfr_avis - Published: 2024-12-27 - Updated: 2024-12-27
De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Elles permettent à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
NoneImpacted products
References
| Title | Publication Time | Tags | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Ubuntu 18.04 ESM",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 20.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 22.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
}
],
"affected_systems_content": null,
"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-2024-47748",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47748"
},
{
"name": "CVE-2024-49863",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49863"
},
{
"name": "CVE-2024-49907",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49907"
},
{
"name": "CVE-2024-46849",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-46849"
},
{
"name": "CVE-2024-47697",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47697"
},
{
"name": "CVE-2024-41016",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41016"
},
{
"name": "CVE-2024-49890",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49890"
},
{
"name": "CVE-2024-49903",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49903"
},
{
"name": "CVE-2024-49969",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49969"
},
{
"name": "CVE-2021-47076",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-47076"
},
{
"name": "CVE-2023-52904",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52904"
},
{
"name": "CVE-2023-52532",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52532"
},
{
"name": "CVE-2023-52621",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52621"
},
{
"name": "CVE-2024-49856",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49856"
},
{
"name": "CVE-2024-40973",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-40973"
},
{
"name": "CVE-2024-35951",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-35951"
},
{
"name": "CVE-2024-49967",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49967"
},
{
"name": "CVE-2024-35965",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-35965"
},
{
"name": "CVE-2024-49858",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49858"
},
{
"name": "CVE-2024-42158",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42158"
},
{
"name": "CVE-2024-50019",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50019"
},
{
"name": "CVE-2024-49948",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49948"
},
{
"name": "CVE-2024-35966",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-35966"
},
{
"name": "CVE-2024-50038",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50038"
},
{
"name": "CVE-2024-49878",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49878"
},
{
"name": "CVE-2024-46855",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-46855"
},
{
"name": "CVE-2024-49884",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49884"
},
{
"name": "CVE-2020-12351",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-12351"
},
{
"name": "CVE-2024-46724",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-46724"
},
{
"name": "CVE-2024-47673",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47673"
},
{
"name": "CVE-2024-50024",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50024"
},
{
"name": "CVE-2024-47684",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47684"
},
{
"name": "CVE-2024-49965",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49965"
},
{
"name": "CVE-2024-38632",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-38632"
},
{
"name": "CVE-2024-49852",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49852"
},
{
"name": "CVE-2024-47701",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47701"
},
{
"name": "CVE-2024-50191",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50191"
},
{
"name": "CVE-2024-47713",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47713"
},
{
"name": "CVE-2024-49936",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49936"
},
{
"name": "CVE-2024-49871",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49871"
},
{
"name": "CVE-2024-49881",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49881"
},
{
"name": "CVE-2024-47690",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47690"
},
{
"name": "CVE-2024-42068",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42068"
},
{
"name": "CVE-2024-49896",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49896"
},
{
"name": "CVE-2024-49959",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49959"
},
{
"name": "CVE-2024-49913",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49913"
},
{
"name": "CVE-2024-47693",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47693"
},
{
"name": "CVE-2024-50045",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50045"
},
{
"name": "CVE-2024-49995",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49995"
},
{
"name": "CVE-2024-39463",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-39463"
},
{
"name": "CVE-2024-49977",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49977"
},
{
"name": "CVE-2024-49900",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49900"
},
{
"name": "CVE-2024-47679",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47679"
},
{
"name": "CVE-2024-47735",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47735"
},
{
"name": "CVE-2024-49952",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49952"
},
{
"name": "CVE-2024-49981",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49981"
},
{
"name": "CVE-2024-53057",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-53057"
},
{
"name": "CVE-2024-50181",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50181"
},
{
"name": "CVE-2024-42240",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42240"
},
{
"name": "CVE-2024-49997",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49997"
},
{
"name": "CVE-2024-50002",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50002"
},
{
"name": "CVE-2024-50186",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50186"
},
{
"name": "CVE-2024-36952",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-36952"
},
{
"name": "CVE-2024-50040",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50040"
},
{
"name": "CVE-2024-49983",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49983"
},
{
"name": "CVE-2024-49889",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49889"
},
{
"name": "CVE-2024-36938",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-36938"
},
{
"name": "CVE-2024-27072",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-27072"
},
{
"name": "CVE-2024-50013",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50013"
},
{
"name": "CVE-2024-49957",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49957"
},
{
"name": "CVE-2024-49962",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49962"
},
{
"name": "CVE-2024-46859",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-46859"
},
{
"name": "CVE-2024-49958",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49958"
},
{
"name": "CVE-2024-47723",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47723"
},
{
"name": "CVE-2024-49955",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49955"
},
{
"name": "CVE-2024-50095",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50095"
},
{
"name": "CVE-2024-50006",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50006"
},
{
"name": "CVE-2024-47672",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47672"
},
{
"name": "CVE-2024-50049",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50049"
},
{
"name": "CVE-2024-50007",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50007"
},
{
"name": "CVE-2024-50096",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50096"
},
{
"name": "CVE-2020-24490",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-24490"
},
{
"name": "CVE-2024-42079",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42079"
},
{
"name": "CVE-2024-50189",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50189"
},
{
"name": "CVE-2024-49868",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49868"
},
{
"name": "CVE-2024-47699",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47699"
},
{
"name": "CVE-2024-50062",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50062"
},
{
"name": "CVE-2024-50059",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50059"
},
{
"name": "CVE-2024-50264",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50264"
},
{
"name": "CVE-2023-52488",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52488"
},
{
"name": "CVE-2024-47712",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47712"
},
{
"name": "CVE-2024-49963",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49963"
},
{
"name": "CVE-2024-49875",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49875"
},
{
"name": "CVE-2024-47739",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47739"
},
{
"name": "CVE-2024-47705",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47705"
},
{
"name": "CVE-2024-50035",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50035"
},
{
"name": "CVE-2024-47740",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47740"
},
{
"name": "CVE-2024-46854",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-46854"
},
{
"name": "CVE-2024-49924",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49924"
},
{
"name": "CVE-2024-26947",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-26947"
},
{
"name": "CVE-2024-49938",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49938"
},
{
"name": "CVE-2020-12352",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-12352"
},
{
"name": "CVE-2024-47756",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47756"
},
{
"name": "CVE-2024-47737",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47737"
},
{
"name": "CVE-2024-49954",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49954"
},
{
"name": "CVE-2023-52639",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52639"
},
{
"name": "CVE-2024-50008",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50008"
},
{
"name": "CVE-2024-46695",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-46695"
},
{
"name": "CVE-2024-50033",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50033"
},
{
"name": "CVE-2024-44942",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-44942"
},
{
"name": "CVE-2024-50180",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50180"
},
{
"name": "CVE-2024-49866",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49866"
},
{
"name": "CVE-2024-49949",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49949"
},
{
"name": "CVE-2024-50046",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50046"
},
{
"name": "CVE-2024-49944",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49944"
},
{
"name": "CVE-2024-47749",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47749"
},
{
"name": "CVE-2024-49966",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49966"
},
{
"name": "CVE-2024-49902",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49902"
},
{
"name": "CVE-2024-47757",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47757"
},
{
"name": "CVE-2024-47692",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47692"
},
{
"name": "CVE-2023-52498",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52498"
},
{
"name": "CVE-2024-40910",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-40910"
},
{
"name": "CVE-2024-50184",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50184"
},
{
"name": "CVE-2024-38667",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-38667"
},
{
"name": "CVE-2024-49851",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49851"
},
{
"name": "CVE-2023-52497",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52497"
},
{
"name": "CVE-2024-38553",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-38553"
},
{
"name": "CVE-2022-48943",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-48943"
},
{
"name": "CVE-2024-42077",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42077"
},
{
"name": "CVE-2024-47734",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47734"
},
{
"name": "CVE-2024-49933",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49933"
},
{
"name": "CVE-2024-47685",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47685"
},
{
"name": "CVE-2024-49935",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49935"
},
{
"name": "CVE-2024-49879",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49879"
},
{
"name": "CVE-2024-50044",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50044"
},
{
"name": "CVE-2024-49894",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49894"
},
{
"name": "CVE-2024-47718",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47718"
},
{
"name": "CVE-2024-44940",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-44940"
},
{
"name": "CVE-2024-49867",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49867"
},
{
"name": "CVE-2024-47671",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47671"
},
{
"name": "CVE-2024-49985",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49985"
},
{
"name": "CVE-2024-50001",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50001"
},
{
"name": "CVE-2024-50000",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50000"
},
{
"name": "CVE-2024-47710",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47710"
},
{
"name": "CVE-2024-50093",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50093"
},
{
"name": "CVE-2024-49892",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49892"
},
{
"name": "CVE-2024-49930",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49930"
},
{
"name": "CVE-2024-43892",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-43892"
},
{
"name": "CVE-2024-47698",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47698"
},
{
"name": "CVE-2022-38096",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-38096"
},
{
"name": "CVE-2024-26822",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-26822"
},
{
"name": "CVE-2024-49946",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49946"
},
{
"name": "CVE-2024-47695",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47695"
},
{
"name": "CVE-2024-50039",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50039"
},
{
"name": "CVE-2024-49973",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49973"
},
{
"name": "CVE-2024-49883",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49883"
},
{
"name": "CVE-2022-48733",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-48733"
},
{
"name": "CVE-2023-52821",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52821"
},
{
"name": "CVE-2024-35963",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-35963"
},
{
"name": "CVE-2024-47670",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47670"
},
{
"name": "CVE-2024-50041",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50041"
},
{
"name": "CVE-2024-46852",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-46852"
},
{
"name": "CVE-2024-50003",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50003"
},
{
"name": "CVE-2024-49860",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49860"
},
{
"name": "CVE-2024-36893",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-36893"
},
{
"name": "CVE-2024-44931",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-44931"
},
{
"name": "CVE-2024-49927",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49927"
},
{
"name": "CVE-2021-47501",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-47501"
},
{
"name": "CVE-2024-49895",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49895"
},
{
"name": "CVE-2024-49882",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49882"
},
{
"name": "CVE-2024-50031",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50031"
},
{
"name": "CVE-2024-35904",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-35904"
},
{
"name": "CVE-2024-49975",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49975"
},
{
"name": "CVE-2024-50179",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50179"
},
{
"name": "CVE-2024-47696",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47696"
},
{
"name": "CVE-2024-46853",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-46853"
},
{
"name": "CVE-2024-43904",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-43904"
},
{
"name": "CVE-2024-50015",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50015"
},
{
"name": "CVE-2024-36968",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-36968"
},
{
"name": "CVE-2024-47674",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47674"
},
{
"name": "CVE-2024-50188",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50188"
},
{
"name": "CVE-2023-52917",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52917"
},
{
"name": "CVE-2024-38597",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-38597"
},
{
"name": "CVE-2024-49982",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49982"
},
{
"name": "CVE-2021-47101",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-47101"
},
{
"name": "CVE-2024-46865",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-46865"
},
{
"name": "CVE-2024-42156",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42156"
},
{
"name": "CVE-2024-38544",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-38544"
},
{
"name": "CVE-2024-47720",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47720"
},
{
"name": "CVE-2024-47742",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47742"
},
{
"name": "CVE-2024-47709",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47709"
},
{
"name": "CVE-2024-47706",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47706"
},
{
"name": "CVE-2024-47747",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47747"
},
{
"name": "CVE-2024-49877",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49877"
},
{
"name": "CVE-2024-38538",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-38538"
},
{
"name": "CVE-2022-48938",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-48938"
},
{
"name": "CVE-2021-47001",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-47001"
},
{
"name": "CVE-2024-35967",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-35967"
},
{
"name": "CVE-2024-36953",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-36953"
},
{
"name": "CVE-2024-46858",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-46858"
},
{
"name": "CVE-2024-49886",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49886"
},
{
"name": "CVE-2024-38545",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-38545"
}
],
"initial_release_date": "2024-12-27T00:00:00",
"last_revision_date": "2024-12-27T00:00:00",
"links": [],
"reference": "CERTFR-2024-AVI-1108",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2024-12-27T00:00:00.000000"
}
],
"risks": [
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le noyau Linux d\u0027Ubuntu. Elles permettent \u00e0 un attaquant de provoquer un probl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux d\u0027Ubuntu",
"vendor_advisories": [
{
"published_at": "2024-12-20",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7166-3",
"url": "https://ubuntu.com/security/notices/USN-7166-3"
},
{
"published_at": "2024-12-20",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7173-2",
"url": "https://ubuntu.com/security/notices/USN-7173-2"
},
{
"published_at": "2024-12-20",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7159-4",
"url": "https://ubuntu.com/security/notices/USN-7159-4"
},
{
"published_at": "2024-12-20",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-7179-1",
"url": "https://ubuntu.com/security/notices/USN-7179-1"
}
]
}
CVE-2024-49867 (GCVE-0-2024-49867)
Vulnerability from cvelistv5 – Published: 2024-10-21 18:01 – Updated: 2026-08-05 11:40
VLAI
EPSS
VEX
Title
btrfs: wait for fixup workers before stopping cleaner kthread during umount
Summary
In the Linux kernel, the following vulnerability has been resolved:
btrfs: wait for fixup workers before stopping cleaner kthread during umount
During unmount, at close_ctree(), we have the following steps in this order:
1) Park the cleaner kthread - this doesn't destroy the kthread, it basically
halts its execution (wake ups against it work but do nothing);
2) We stop the cleaner kthread - this results in freeing the respective
struct task_struct;
3) We call btrfs_stop_all_workers() which waits for any jobs running in all
the work queues and then free the work queues.
Syzbot reported a case where a fixup worker resulted in a crash when doing
a delayed iput on its inode while attempting to wake up the cleaner at
btrfs_add_delayed_iput(), because the task_struct of the cleaner kthread
was already freed. This can happen during unmount because we don't wait
for any fixup workers still running before we call kthread_stop() against
the cleaner kthread, which stops and free all its resources.
Fix this by waiting for any fixup workers at close_ctree() before we call
kthread_stop() against the cleaner and run pending delayed iputs.
The stack traces reported by syzbot were the following:
BUG: KASAN: slab-use-after-free in __lock_acquire+0x77/0x2050 kernel/locking/lockdep.c:5065
Read of size 8 at addr ffff8880272a8a18 by task kworker/u8:3/52
CPU: 1 UID: 0 PID: 52 Comm: kworker/u8:3 Not tainted 6.12.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: btrfs-fixup btrfs_work_helper
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:377 [inline]
print_report+0x169/0x550 mm/kasan/report.c:488
kasan_report+0x143/0x180 mm/kasan/report.c:601
__lock_acquire+0x77/0x2050 kernel/locking/lockdep.c:5065
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:551 [inline]
try_to_wake_up+0xb0/0x1480 kernel/sched/core.c:4154
btrfs_writepage_fixup_worker+0xc16/0xdf0 fs/btrfs/inode.c:2842
btrfs_work_helper+0x390/0xc50 fs/btrfs/async-thread.c:314
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
Allocated by task 2:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
unpoison_slab_object mm/kasan/common.c:319 [inline]
__kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:345
kasan_slab_alloc include/linux/kasan.h:247 [inline]
slab_post_alloc_hook mm/slub.c:4086 [inline]
slab_alloc_node mm/slub.c:4135 [inline]
kmem_cache_alloc_node_noprof+0x16b/0x320 mm/slub.c:4187
alloc_task_struct_node kernel/fork.c:180 [inline]
dup_task_struct+0x57/0x8c0 kernel/fork.c:1107
copy_process+0x5d1/0x3d50 kernel/fork.c:2206
kernel_clone+0x223/0x880 kernel/fork.c:2787
kernel_thread+0x1bc/0x240 kernel/fork.c:2849
create_kthread kernel/kthread.c:412 [inline]
kthreadd+0x60d/0x810 kernel/kthread.c:765
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Freed by task 61:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_h
---truncated---
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-22 13:47 UTC
Assigner
References
10 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
7a97311de48d56af6db4c5819f95faf9b0b23b1a , < a71349b692ab34ea197949e13e3cc42570fe73d9
(git)
Affected: f4b1363cae43fef7c86c993b7ca7fe7d546b3c68 , < 70b60c8d9b42763d6629e44f448aa5d8ae477d61 (git) Affected: f4b1363cae43fef7c86c993b7ca7fe7d546b3c68 , < 4c98fe0dfa2ae83c4631699695506d8941db4bfe (git) Affected: f4b1363cae43fef7c86c993b7ca7fe7d546b3c68 , < 9da40aea63f8769f28afb91aea0fac4cf6fbbb65 (git) Affected: f4b1363cae43fef7c86c993b7ca7fe7d546b3c68 , < ed87190e9d9c80aad220fb6b0b03a84d22e2c95b (git) Affected: f4b1363cae43fef7c86c993b7ca7fe7d546b3c68 , < bf0de0f9a0544c11f96f93206da04ab87dcea1f4 (git) Affected: f4b1363cae43fef7c86c993b7ca7fe7d546b3c68 , < 65d11eb276836d49003a8060cf31fa2284ad1047 (git) Affected: f4b1363cae43fef7c86c993b7ca7fe7d546b3c68 , < 41fd1e94066a815a7ab0a7025359e9b40e4b3576 (git) Affected: 6026fd9da213daab95469356fe7fdcf29ae1a296 (git) Affected: 5.4.22 , < 5.4.285 (semver) Affected: 5.5.6 , < 5.6 (semver) |
|
| Linux | Linux |
Affected:
5.6
Unaffected: 0 , < 5.6 (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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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: wait for fixup workers before stopping cleaner kthread during umount\n\nDuring unmount, at close_ctree(), we have the following steps in this order:\n\n1) Park the cleaner kthread - this doesn\u0027t destroy the kthread, it basically\n halts its execution (wake ups against it work but do nothing);\n\n2) We stop the cleaner kthread - this results in freeing the respective\n struct task_struct;\n\n3) We call btrfs_stop_all_workers() which waits for any jobs running in all\n the work queues and then free the work queues.\n\nSyzbot reported a case where a fixup worker resulted in a crash when doing\na delayed iput on its inode while attempting to wake up the cleaner at\nbtrfs_add_delayed_iput(), because the task_struct of the cleaner kthread\nwas already freed. This can happen during unmount because we don\u0027t wait\nfor any fixup workers still running before we call kthread_stop() against\nthe cleaner kthread, which stops and free all its resources.\n\nFix this by waiting for any fixup workers at close_ctree() before we call\nkthread_stop() against the cleaner and run pending delayed iputs.\n\nThe stack traces reported by syzbot were the following:\n\n BUG: KASAN: slab-use-after-free in __lock_acquire+0x77/0x2050 kernel/locking/lockdep.c:5065\n Read of size 8 at addr ffff8880272a8a18 by task kworker/u8:3/52\n\n CPU: 1 UID: 0 PID: 52 Comm: kworker/u8:3 Not tainted 6.12.0-rc1-syzkaller #0\n Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\n Workqueue: btrfs-fixup btrfs_work_helper\n Call Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:94 [inline]\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120\n print_address_description mm/kasan/report.c:377 [inline]\n print_report+0x169/0x550 mm/kasan/report.c:488\n kasan_report+0x143/0x180 mm/kasan/report.c:601\n __lock_acquire+0x77/0x2050 kernel/locking/lockdep.c:5065\n lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825\n __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]\n _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162\n class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:551 [inline]\n try_to_wake_up+0xb0/0x1480 kernel/sched/core.c:4154\n btrfs_writepage_fixup_worker+0xc16/0xdf0 fs/btrfs/inode.c:2842\n btrfs_work_helper+0x390/0xc50 fs/btrfs/async-thread.c:314\n process_one_work kernel/workqueue.c:3229 [inline]\n process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310\n worker_thread+0x870/0xd30 kernel/workqueue.c:3391\n kthread+0x2f0/0x390 kernel/kthread.c:389\n ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244\n \u003c/TASK\u003e\n\n Allocated by task 2:\n kasan_save_stack mm/kasan/common.c:47 [inline]\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\n unpoison_slab_object mm/kasan/common.c:319 [inline]\n __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:345\n kasan_slab_alloc include/linux/kasan.h:247 [inline]\n slab_post_alloc_hook mm/slub.c:4086 [inline]\n slab_alloc_node mm/slub.c:4135 [inline]\n kmem_cache_alloc_node_noprof+0x16b/0x320 mm/slub.c:4187\n alloc_task_struct_node kernel/fork.c:180 [inline]\n dup_task_struct+0x57/0x8c0 kernel/fork.c:1107\n copy_process+0x5d1/0x3d50 kernel/fork.c:2206\n kernel_clone+0x223/0x880 kernel/fork.c:2787\n kernel_thread+0x1bc/0x240 kernel/fork.c:2849\n create_kthread kernel/kthread.c:412 [inline]\n kthreadd+0x60d/0x810 kernel/kthread.c:765\n ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244\n\n Freed by task 61:\n kasan_save_stack mm/kasan/common.c:47 [inline]\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\n kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579\n poison_slab_object mm/kasan/common.c:247 [inline]\n __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264\n kasan_slab_free include/linux/kasan.h:230 [inline]\n slab_free_h\n---truncated---"
}
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{
"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",
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"value": "AV:L - Reaching the bug needs local write activity on a mounted btrfs filesystem to queue fixup workers plus the local `umount(2)` \u2192 `close_ctree()` path; no remote or adjacent-network protocol handler is involved.\nAC:L - The attacker fully controls one side of the race and can keep `fs_info-\u003efixup_workers` continuously saturated (dirtying file pages behind the FS\u0027s back via shared mmap/GUP writes) so a worker is essentially always in flight when unmount runs; where the attacker also triggers the unmount (removable btrfs media via udisks2, container teardown) they control both sides of the race.\nPR:L - No capability check exists on the path that queues the fixup work \u2014 `extent_writepage_io()` \u2192 `btrfs_writepage_cow_fixup()` is the plain writeback path and only requires an unprivileged user with write access to any file on a btrfs mount.\nUI:N - No victim action is required; the unmount that closes the race happens automatically at shutdown, container teardown, or media eject, and in the removable-media case the attacker performs it themselves.\nS:U - The use-after-free is on a kernel `task_struct` and its impact stays within the kernel\u0027s own security authority, crossing no VM, IOMMU, or sandbox boundary.\nC:H - The freed `task_struct` slab object can be reallocated with attacker-groomed content by spawning tasks, and `try_to_wake_up()` reads scheduler state and pointers out of it, providing a route to kernel memory disclosure.\nI:H - `try_to_wake_up()` writes into the freed object \u2014 `pi_lock` acquisition, `__state`/`on_rq` updates \u2014 and dispatches indirect calls through `p-\u003esched_class`, giving both a write primitive and a control-flow-hijack primitive on a sprayable slab.\nA:H - This is a KASAN-confirmed slab-use-after-free reported by syzbot that oopses or panics the kernel during unmount, and the trigger can be repeated on every mount/unmount cycle."
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CVE-2024-49868 (GCVE-0-2024-49868)
Vulnerability from cvelistv5 – Published: 2024-10-21 18:01 – Updated: 2026-05-11 20:40
VLAI
EPSS
VEX
Title
btrfs: fix a NULL pointer dereference when failed to start a new trasacntion
Summary
In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix a NULL pointer dereference when failed to start a new trasacntion
[BUG]
Syzbot reported a NULL pointer dereference with the following crash:
FAULT_INJECTION: forcing a failure.
start_transaction+0x830/0x1670 fs/btrfs/transaction.c:676
prepare_to_relocate+0x31f/0x4c0 fs/btrfs/relocation.c:3642
relocate_block_group+0x169/0xd20 fs/btrfs/relocation.c:3678
...
BTRFS info (device loop0): balance: ended with status: -12
Oops: general protection fault, probably for non-canonical address 0xdffffc00000000cc: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000660-0x0000000000000667]
RIP: 0010:btrfs_update_reloc_root+0x362/0xa80 fs/btrfs/relocation.c:926
Call Trace:
<TASK>
commit_fs_roots+0x2ee/0x720 fs/btrfs/transaction.c:1496
btrfs_commit_transaction+0xfaf/0x3740 fs/btrfs/transaction.c:2430
del_balance_item fs/btrfs/volumes.c:3678 [inline]
reset_balance_state+0x25e/0x3c0 fs/btrfs/volumes.c:3742
btrfs_balance+0xead/0x10c0 fs/btrfs/volumes.c:4574
btrfs_ioctl_balance+0x493/0x7c0 fs/btrfs/ioctl.c:3673
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
[CAUSE]
The allocation failure happens at the start_transaction() inside
prepare_to_relocate(), and during the error handling we call
unset_reloc_control(), which makes fs_info->balance_ctl to be NULL.
Then we continue the error path cleanup in btrfs_balance() by calling
reset_balance_state() which will call del_balance_item() to fully delete
the balance item in the root tree.
However during the small window between set_reloc_contrl() and
unset_reloc_control(), we can have a subvolume tree update and created a
reloc_root for that subvolume.
Then we go into the final btrfs_commit_transaction() of
del_balance_item(), and into btrfs_update_reloc_root() inside
commit_fs_roots().
That function checks if fs_info->reloc_ctl is in the merge_reloc_tree
stage, but since fs_info->reloc_ctl is NULL, it results a NULL pointer
dereference.
[FIX]
Just add extra check on fs_info->reloc_ctl inside
btrfs_update_reloc_root(), before checking
fs_info->reloc_ctl->merge_reloc_tree.
That DEAD_RELOC_TREE handling is to prevent further modification to the
reloc tree during merge stage, but since there is no reloc_ctl at all,
we do not need to bother that.
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 13:47 UTC
Assigner
References
10 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
3fd0a5585eb98e074fb9934549c8d85c49756c0d , < 1282f001cbf56e5dd6e90a18e205a566793f4be0
(git)
Affected: 3fd0a5585eb98e074fb9934549c8d85c49756c0d , < d73d48acf36f57362df7e4f9d76568168bf5e944 (git) Affected: 3fd0a5585eb98e074fb9934549c8d85c49756c0d , < 37fee9c220b92c3b7bf22b51c51dde5364e7590b (git) Affected: 3fd0a5585eb98e074fb9934549c8d85c49756c0d , < d13249c0df7aab885acb149695f82c54c0822a70 (git) Affected: 3fd0a5585eb98e074fb9934549c8d85c49756c0d , < 7ad0c5868f2f0418619089513d95230c66cb7eb4 (git) Affected: 3fd0a5585eb98e074fb9934549c8d85c49756c0d , < dc02c1440705e3451abd1c2c8114a5c1bb188e9f (git) Affected: 3fd0a5585eb98e074fb9934549c8d85c49756c0d , < 39356ec0e319ed07627b3a0f402d0608546509e6 (git) Affected: 3fd0a5585eb98e074fb9934549c8d85c49756c0d , < c3b47f49e83197e8dffd023ec568403bcdbb774b (git) |
|
| Linux | Linux |
Affected:
2.6.35
Unaffected: 0 , < 2.6.35 (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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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix a NULL pointer dereference when failed to start a new trasacntion\n\n[BUG]\nSyzbot reported a NULL pointer dereference with the following crash:\n\n FAULT_INJECTION: forcing a failure.\n start_transaction+0x830/0x1670 fs/btrfs/transaction.c:676\n prepare_to_relocate+0x31f/0x4c0 fs/btrfs/relocation.c:3642\n relocate_block_group+0x169/0xd20 fs/btrfs/relocation.c:3678\n ...\n BTRFS info (device loop0): balance: ended with status: -12\n Oops: general protection fault, probably for non-canonical address 0xdffffc00000000cc: 0000 [#1] PREEMPT SMP KASAN NOPTI\n KASAN: null-ptr-deref in range [0x0000000000000660-0x0000000000000667]\n RIP: 0010:btrfs_update_reloc_root+0x362/0xa80 fs/btrfs/relocation.c:926\n Call Trace:\n \u003cTASK\u003e\n commit_fs_roots+0x2ee/0x720 fs/btrfs/transaction.c:1496\n btrfs_commit_transaction+0xfaf/0x3740 fs/btrfs/transaction.c:2430\n del_balance_item fs/btrfs/volumes.c:3678 [inline]\n reset_balance_state+0x25e/0x3c0 fs/btrfs/volumes.c:3742\n btrfs_balance+0xead/0x10c0 fs/btrfs/volumes.c:4574\n btrfs_ioctl_balance+0x493/0x7c0 fs/btrfs/ioctl.c:3673\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:907 [inline]\n __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\n[CAUSE]\nThe allocation failure happens at the start_transaction() inside\nprepare_to_relocate(), and during the error handling we call\nunset_reloc_control(), which makes fs_info-\u003ebalance_ctl to be NULL.\n\nThen we continue the error path cleanup in btrfs_balance() by calling\nreset_balance_state() which will call del_balance_item() to fully delete\nthe balance item in the root tree.\n\nHowever during the small window between set_reloc_contrl() and\nunset_reloc_control(), we can have a subvolume tree update and created a\nreloc_root for that subvolume.\n\nThen we go into the final btrfs_commit_transaction() of\ndel_balance_item(), and into btrfs_update_reloc_root() inside\ncommit_fs_roots().\n\nThat function checks if fs_info-\u003ereloc_ctl is in the merge_reloc_tree\nstage, but since fs_info-\u003ereloc_ctl is NULL, it results a NULL pointer\ndereference.\n\n[FIX]\nJust add extra check on fs_info-\u003ereloc_ctl inside\nbtrfs_update_reloc_root(), before checking\nfs_info-\u003ereloc_ctl-\u003emerge_reloc_tree.\n\nThat DEAD_RELOC_TREE handling is to prevent further modification to the\nreloc tree during merge stage, but since there is no reloc_ctl at all,\nwe do not need to bother that."
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"datePublished": "2024-10-21T18:01:10.722Z",
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CVE-2024-49871 (GCVE-0-2024-49871)
Vulnerability from cvelistv5 – Published: 2024-10-21 18:01 – Updated: 2026-05-11 20:40
VLAI
EPSS
VEX
Title
Input: adp5589-keys - fix NULL pointer dereference
Summary
In the Linux kernel, the following vulnerability has been resolved:
Input: adp5589-keys - fix NULL pointer dereference
We register a devm action to call adp5589_clear_config() and then pass
the i2c client as argument so that we can call i2c_get_clientdata() in
order to get our device object. However, i2c_set_clientdata() is only
being set at the end of the probe function which means that we'll get a
NULL pointer dereference in case the probe function fails early.
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 13:46 UTC
Assigner
References
7 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
30df385e35a48f773b85117fc490152c2395e45b , < 4449fedb8a710043fc0925409eba844c192d4337
(git)
Affected: 30df385e35a48f773b85117fc490152c2395e45b , < 34e304cc53ae5d3c8e3f08b41dd11e0d4f3e01ed (git) Affected: 30df385e35a48f773b85117fc490152c2395e45b , < 7c3f04223aaf82489472d614c6decee5a1ce8d7f (git) Affected: 30df385e35a48f773b85117fc490152c2395e45b , < 9a38791ee79bd17d225c15a6d1479448be127a59 (git) Affected: 30df385e35a48f773b85117fc490152c2395e45b , < 122b160561f6429701a0559a0f39b0ae309488c6 (git) Affected: 30df385e35a48f773b85117fc490152c2395e45b , < fb5cc65f973661241e4a2b7390b429aa7b330c69 (git) |
|
| Linux | Linux |
Affected:
5.11
Unaffected: 0 , < 5.11 (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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"title": "Input: adp5589-keys - fix NULL pointer dereference",
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CVE-2024-49875 (GCVE-0-2024-49875)
Vulnerability from cvelistv5 – Published: 2024-10-21 18:01 – Updated: 2026-08-05 11:40
VLAI
EPSS
VEX
Title
nfsd: map the EBADMSG to nfserr_io to avoid warning
Summary
In the Linux kernel, the following vulnerability has been resolved:
nfsd: map the EBADMSG to nfserr_io to avoid warning
Ext4 will throw -EBADMSG through ext4_readdir when a checksum error
occurs, resulting in the following WARNING.
Fix it by mapping EBADMSG to nfserr_io.
nfsd_buffered_readdir
iterate_dir // -EBADMSG -74
ext4_readdir // .iterate_shared
ext4_dx_readdir
ext4_htree_fill_tree
htree_dirblock_to_tree
ext4_read_dirblock
__ext4_read_dirblock
ext4_dirblock_csum_verify
warn_no_space_for_csum
__warn_no_space_for_csum
return ERR_PTR(-EFSBADCRC) // -EBADMSG -74
nfserrno // WARNING
[ 161.115610] ------------[ cut here ]------------
[ 161.116465] nfsd: non-standard errno: -74
[ 161.117315] WARNING: CPU: 1 PID: 780 at fs/nfsd/nfsproc.c:878 nfserrno+0x9d/0xd0
[ 161.118596] Modules linked in:
[ 161.119243] CPU: 1 PID: 780 Comm: nfsd Not tainted 5.10.0-00014-g79679361fd5d #138
[ 161.120684] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qe
mu.org 04/01/2014
[ 161.123601] RIP: 0010:nfserrno+0x9d/0xd0
[ 161.124676] Code: 0f 87 da 30 dd 00 83 e3 01 b8 00 00 00 05 75 d7 44 89 ee 48 c7 c7 c0 57 24 98 89 44 24 04 c6
05 ce 2b 61 03 01 e8 99 20 d8 00 <0f> 0b 8b 44 24 04 eb b5 4c 89 e6 48 c7 c7 a0 6d a4 99 e8 cc 15 33
[ 161.127797] RSP: 0018:ffffc90000e2f9c0 EFLAGS: 00010286
[ 161.128794] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 161.130089] RDX: 1ffff1103ee16f6d RSI: 0000000000000008 RDI: fffff520001c5f2a
[ 161.131379] RBP: 0000000000000022 R08: 0000000000000001 R09: ffff8881f70c1827
[ 161.132664] R10: ffffed103ee18304 R11: 0000000000000001 R12: 0000000000000021
[ 161.133949] R13: 00000000ffffffb6 R14: ffff8881317c0000 R15: ffffc90000e2fbd8
[ 161.135244] FS: 0000000000000000(0000) GS:ffff8881f7080000(0000) knlGS:0000000000000000
[ 161.136695] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 161.137761] CR2: 00007fcaad70b348 CR3: 0000000144256006 CR4: 0000000000770ee0
[ 161.139041] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 161.140291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 161.141519] PKRU: 55555554
[ 161.142076] Call Trace:
[ 161.142575] ? __warn+0x9b/0x140
[ 161.143229] ? nfserrno+0x9d/0xd0
[ 161.143872] ? report_bug+0x125/0x150
[ 161.144595] ? handle_bug+0x41/0x90
[ 161.145284] ? exc_invalid_op+0x14/0x70
[ 161.146009] ? asm_exc_invalid_op+0x12/0x20
[ 161.146816] ? nfserrno+0x9d/0xd0
[ 161.147487] nfsd_buffered_readdir+0x28b/0x2b0
[ 161.148333] ? nfsd4_encode_dirent_fattr+0x380/0x380
[ 161.149258] ? nfsd_buffered_filldir+0xf0/0xf0
[ 161.150093] ? wait_for_concurrent_writes+0x170/0x170
[ 161.151004] ? generic_file_llseek_size+0x48/0x160
[ 161.151895] nfsd_readdir+0x132/0x190
[ 161.152606] ? nfsd4_encode_dirent_fattr+0x380/0x380
[ 161.153516] ? nfsd_unlink+0x380/0x380
[ 161.154256] ? override_creds+0x45/0x60
[ 161.155006] nfsd4_encode_readdir+0x21a/0x3d0
[ 161.155850] ? nfsd4_encode_readlink+0x210/0x210
[ 161.156731] ? write_bytes_to_xdr_buf+0x97/0xe0
[ 161.157598] ? __write_bytes_to_xdr_buf+0xd0/0xd0
[ 161.158494] ? lock_downgrade+0x90/0x90
[ 161.159232] ? nfs4svc_decode_voidarg+0x10/0x10
[ 161.160092] nfsd4_encode_operation+0x15a/0x440
[ 161.160959] nfsd4_proc_compound+0x718/0xe90
[ 161.161818] nfsd_dispatch+0x18e/0x2c0
[ 161.162586] svc_process_common+0x786/0xc50
[ 161.163403] ? nfsd_svc+0x380/0x380
[ 161.164137] ? svc_printk+0x160/0x160
[ 161.164846] ? svc_xprt_do_enqueue.part.0+0x365/0x380
[ 161.165808] ? nfsd_svc+0x380/0x380
[ 161.166523] ? rcu_is_watching+0x23/0x40
[ 161.167309] svc_process+0x1a5/0x200
[ 161.168019] nfsd+0x1f5/0x380
[ 161.168663] ? nfsd_shutdown_threads+0x260/0x260
[ 161.169554] kthread+0x1c4/0x210
[ 161.170224] ? kthread_insert_work_sanity_check+0x80/0x80
[ 161.171246] ret_from_fork+0x1f/0x30
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-22 13:46 UTC
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
6a797d2737838906f2ea0a31686e87c3151e21ca , < 0ea4333c679f333e23956de743ad17387819d3f2
(git)
Affected: 6a797d2737838906f2ea0a31686e87c3151e21ca , < 825789ca94602543101045ad3aad19b2b60c6b2a (git) Affected: 6a797d2737838906f2ea0a31686e87c3151e21ca , < 6fe058502f8864649c3d614b06b2235223798f48 (git) Affected: 6a797d2737838906f2ea0a31686e87c3151e21ca , < f7d8ee9db94372b8235f5f22bb24381891594c42 (git) Affected: 6a797d2737838906f2ea0a31686e87c3151e21ca , < c76005adfa93d1a027433331252422078750321f (git) Affected: 6a797d2737838906f2ea0a31686e87c3151e21ca , < e9cfecca22a36b927a440abc6307efb9e138fed5 (git) Affected: 6a797d2737838906f2ea0a31686e87c3151e21ca , < 340e61e44c1d2a15c42ec72ade9195ad525fd048 (git) |
|
| Linux | Linux |
Affected:
4.4
Unaffected: 0 , < 4.4 (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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{
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{
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{
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"version": "5.15.168",
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{
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"version": "6.1.113",
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{
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"version": "6.6.55",
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{
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"version": "6.10.14",
"versionType": "semver"
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{
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"version": "6.11.3",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.12",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
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{
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"versionEndExcluding": "5.10.227",
"versionStartIncluding": "4.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.168",
"versionStartIncluding": "4.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.113",
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"vulnerable": true
},
{
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"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.10.14",
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},
{
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},
{
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}
],
"negate": false,
"operator": "OR"
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}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: map the EBADMSG to nfserr_io to avoid warning\n\nExt4 will throw -EBADMSG through ext4_readdir when a checksum error\noccurs, resulting in the following WARNING.\n\nFix it by mapping EBADMSG to nfserr_io.\n\nnfsd_buffered_readdir\n iterate_dir // -EBADMSG -74\n ext4_readdir // .iterate_shared\n ext4_dx_readdir\n ext4_htree_fill_tree\n htree_dirblock_to_tree\n ext4_read_dirblock\n __ext4_read_dirblock\n ext4_dirblock_csum_verify\n warn_no_space_for_csum\n __warn_no_space_for_csum\n return ERR_PTR(-EFSBADCRC) // -EBADMSG -74\n nfserrno // WARNING\n\n[ 161.115610] ------------[ cut here ]------------\n[ 161.116465] nfsd: non-standard errno: -74\n[ 161.117315] WARNING: CPU: 1 PID: 780 at fs/nfsd/nfsproc.c:878 nfserrno+0x9d/0xd0\n[ 161.118596] Modules linked in:\n[ 161.119243] CPU: 1 PID: 780 Comm: nfsd Not tainted 5.10.0-00014-g79679361fd5d #138\n[ 161.120684] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qe\nmu.org 04/01/2014\n[ 161.123601] RIP: 0010:nfserrno+0x9d/0xd0\n[ 161.124676] Code: 0f 87 da 30 dd 00 83 e3 01 b8 00 00 00 05 75 d7 44 89 ee 48 c7 c7 c0 57 24 98 89 44 24 04 c6\n 05 ce 2b 61 03 01 e8 99 20 d8 00 \u003c0f\u003e 0b 8b 44 24 04 eb b5 4c 89 e6 48 c7 c7 a0 6d a4 99 e8 cc 15 33\n[ 161.127797] RSP: 0018:ffffc90000e2f9c0 EFLAGS: 00010286\n[ 161.128794] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000\n[ 161.130089] RDX: 1ffff1103ee16f6d RSI: 0000000000000008 RDI: fffff520001c5f2a\n[ 161.131379] RBP: 0000000000000022 R08: 0000000000000001 R09: ffff8881f70c1827\n[ 161.132664] R10: ffffed103ee18304 R11: 0000000000000001 R12: 0000000000000021\n[ 161.133949] R13: 00000000ffffffb6 R14: ffff8881317c0000 R15: ffffc90000e2fbd8\n[ 161.135244] FS: 0000000000000000(0000) GS:ffff8881f7080000(0000) knlGS:0000000000000000\n[ 161.136695] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 161.137761] CR2: 00007fcaad70b348 CR3: 0000000144256006 CR4: 0000000000770ee0\n[ 161.139041] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 161.140291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 161.141519] PKRU: 55555554\n[ 161.142076] Call Trace:\n[ 161.142575] ? __warn+0x9b/0x140\n[ 161.143229] ? nfserrno+0x9d/0xd0\n[ 161.143872] ? report_bug+0x125/0x150\n[ 161.144595] ? handle_bug+0x41/0x90\n[ 161.145284] ? exc_invalid_op+0x14/0x70\n[ 161.146009] ? asm_exc_invalid_op+0x12/0x20\n[ 161.146816] ? nfserrno+0x9d/0xd0\n[ 161.147487] nfsd_buffered_readdir+0x28b/0x2b0\n[ 161.148333] ? nfsd4_encode_dirent_fattr+0x380/0x380\n[ 161.149258] ? nfsd_buffered_filldir+0xf0/0xf0\n[ 161.150093] ? wait_for_concurrent_writes+0x170/0x170\n[ 161.151004] ? generic_file_llseek_size+0x48/0x160\n[ 161.151895] nfsd_readdir+0x132/0x190\n[ 161.152606] ? nfsd4_encode_dirent_fattr+0x380/0x380\n[ 161.153516] ? nfsd_unlink+0x380/0x380\n[ 161.154256] ? override_creds+0x45/0x60\n[ 161.155006] nfsd4_encode_readdir+0x21a/0x3d0\n[ 161.155850] ? nfsd4_encode_readlink+0x210/0x210\n[ 161.156731] ? write_bytes_to_xdr_buf+0x97/0xe0\n[ 161.157598] ? __write_bytes_to_xdr_buf+0xd0/0xd0\n[ 161.158494] ? lock_downgrade+0x90/0x90\n[ 161.159232] ? nfs4svc_decode_voidarg+0x10/0x10\n[ 161.160092] nfsd4_encode_operation+0x15a/0x440\n[ 161.160959] nfsd4_proc_compound+0x718/0xe90\n[ 161.161818] nfsd_dispatch+0x18e/0x2c0\n[ 161.162586] svc_process_common+0x786/0xc50\n[ 161.163403] ? nfsd_svc+0x380/0x380\n[ 161.164137] ? svc_printk+0x160/0x160\n[ 161.164846] ? svc_xprt_do_enqueue.part.0+0x365/0x380\n[ 161.165808] ? nfsd_svc+0x380/0x380\n[ 161.166523] ? rcu_is_watching+0x23/0x40\n[ 161.167309] svc_process+0x1a5/0x200\n[ 161.168019] nfsd+0x1f5/0x380\n[ 161.168663] ? nfsd_shutdown_threads+0x260/0x260\n[ 161.169554] kthread+0x1c4/0x210\n[ 161.170224] ? kthread_insert_work_sanity_check+0x80/0x80\n[ 161.171246] ret_from_fork+0x1f/0x30"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:N - The faulty code runs inside the nfsd kernel thread while servicing NFS RPCs (READDIR, file-handle decode, LOOKUP) received over the network, per the commit\u0027s own call trace `svc_process \u2192 nfsd_dispatch \u2192 nfsd4_proc_compound \u2192 nfsd_readdir \u2192 nfserrno`. A remote NFS client triggers it purely by sending protocol requests.\nAC:L - On an affected export the client reliably reaches the path with ordinary READDIR requests or by presenting file handles, and can systematically enumerate directories and inode numbers until it lands on a block returning -EFSBADCRC; for FUSE-backed exports the -EBADMSG return is directly attacker-supplied, requiring no race and no unpredictable memory layout.\nPR:N - NFS exports are commonly served with AUTH_SYS, where credentials are self-asserted and no cryptographic authentication occurs; any host permitted by the export list can issue READDIR or a file handle, so no privileges on the server are needed.\nUI:N - The nfsd thread hits the warning while processing a client-initiated RPC; no administrator or user action on the server is required.\nS:U - The warning and any resulting panic occur within the NFS server kernel itself, with no crossing into another security authority such as a hypervisor or IOMMU boundary.\nC:N - The error is mapped to nfserr_io both before and after the fix, so no additional data is returned to the client; the WARN stack trace goes only to the server\u0027s dmesg and is not exposed to the remote attacker.\nI:N - No memory is corrupted and no filesystem or protocol state is modified \u2014 the resulting NFS status code is identical before and after the fix.\nA:H - The unmapped errno hits WARN_ONCE in nfserrno(), which oopses and taints the kernel, and on the hardened and cloud configurations that set panic_on_warn=1 this panics the entire NFS server, denying service to all clients."
}
]
}
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"url": "https://git.kernel.org/stable/c/825789ca94602543101045ad3aad19b2b60c6b2a"
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"url": "https://git.kernel.org/stable/c/6fe058502f8864649c3d614b06b2235223798f48"
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"url": "https://git.kernel.org/stable/c/f7d8ee9db94372b8235f5f22bb24381891594c42"
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"url": "https://git.kernel.org/stable/c/e9cfecca22a36b927a440abc6307efb9e138fed5"
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],
"title": "nfsd: map the EBADMSG to nfserr_io to avoid warning",
"x_generator": {
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"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-49875",
"datePublished": "2024-10-21T18:01:15.434Z",
"dateReserved": "2024-10-21T12:17:06.020Z",
"dateUpdated": "2026-08-05T11:40:18.193Z",
"state": "PUBLISHED"
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CVE-2024-49877 (GCVE-0-2024-49877)
Vulnerability from cvelistv5 – Published: 2024-10-21 18:01 – Updated: 2026-05-23 15:53
VLAI
EPSS
VEX
Title
ocfs2: fix possible null-ptr-deref in ocfs2_set_buffer_uptodate
Summary
In the Linux kernel, the following vulnerability has been resolved:
ocfs2: fix possible null-ptr-deref in ocfs2_set_buffer_uptodate
When doing cleanup, if flags without OCFS2_BH_READAHEAD, it may trigger
NULL pointer dereference in the following ocfs2_set_buffer_uptodate() if
bh is NULL.
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 13:46 UTC
Assigner
References
11 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
6c150df9c2e80b5cf86f5a0d98beb7390ad63bfc , < 190d98bcd61117a78fe185222d162180f061a6ca
(git)
Affected: cf76c78595ca87548ca5e45c862ac9e0949c4687 , < e68c8323355e8cedfbe0bec7d5a39009f61640b6 (git) Affected: cf76c78595ca87548ca5e45c862ac9e0949c4687 , < 61b84013e560382cbe7dd56758be3154d43a3988 (git) Affected: cf76c78595ca87548ca5e45c862ac9e0949c4687 , < df944dc46d06af65a75191183d52be017e6b9dbe (git) Affected: cf76c78595ca87548ca5e45c862ac9e0949c4687 , < 01cb2e751cc61ade454c9bc1aaa2eac1f8197112 (git) Affected: cf76c78595ca87548ca5e45c862ac9e0949c4687 , < d52c5652e7dcb7a0648bbb8642cc3e617070ab49 (git) Affected: cf76c78595ca87548ca5e45c862ac9e0949c4687 , < 46b1edf0536a5291a8ad2337f88c926214b209d9 (git) Affected: cf76c78595ca87548ca5e45c862ac9e0949c4687 , < 4846e72ab5a0726e49ad4188b9d9df091ae78c64 (git) Affected: cf76c78595ca87548ca5e45c862ac9e0949c4687 , < 33b525cef4cff49e216e4133cc48452e11c0391e (git) Affected: 01f93d5e36753fc4d06ec67f05ce78c9c6f2dd56 (git) Affected: 65cbd1279f4b999d56a838344a30642db24cd215 (git) Affected: 97e1db17bc1ef4c2e1789bc9323c7be44fba53f8 (git) Affected: 4.19.87 , < 4.19.323 (semver) Affected: 4.4.204 , < 4.5 (semver) Affected: 4.9.204 , < 4.10 (semver) Affected: 4.14.157 , < 4.15 (semver) |
|
| Linux | Linux |
Affected:
4.20
Unaffected: 0 , < 4.20 (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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"metrics": [
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"other": {
"content": {
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"options": [
{
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{
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],
"role": "CISA Coordinator",
"timestamp": "2024-10-22T13:46:09.612488Z",
"version": "2.0.3"
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"providerMetadata": {
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"title": "CISA ADP Vulnrichment"
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"dateUpdated": "2025-11-03T22:22:42.001Z",
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"title": "CVE Program Container"
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CVE-2024-49878 (GCVE-0-2024-49878)
Vulnerability from cvelistv5 – Published: 2024-10-21 18:01 – Updated: 2026-05-11 20:40
VLAI
EPSS
VEX
Title
resource: fix region_intersects() vs add_memory_driver_managed()
Summary
In the Linux kernel, the following vulnerability has been resolved:
resource: fix region_intersects() vs add_memory_driver_managed()
On a system with CXL memory, the resource tree (/proc/iomem) related to
CXL memory may look like something as follows.
490000000-50fffffff : CXL Window 0
490000000-50fffffff : region0
490000000-50fffffff : dax0.0
490000000-50fffffff : System RAM (kmem)
Because drivers/dax/kmem.c calls add_memory_driver_managed() during
onlining CXL memory, which makes "System RAM (kmem)" a descendant of "CXL
Window X". This confuses region_intersects(), which expects all "System
RAM" resources to be at the top level of iomem_resource. This can lead to
bugs.
For example, when the following command line is executed to write some
memory in CXL memory range via /dev/mem,
$ dd if=data of=/dev/mem bs=$((1 << 10)) seek=$((0x490000000 >> 10)) count=1
dd: error writing '/dev/mem': Bad address
1+0 records in
0+0 records out
0 bytes copied, 0.0283507 s, 0.0 kB/s
the command fails as expected. However, the error code is wrong. It
should be "Operation not permitted" instead of "Bad address". More
seriously, the /dev/mem permission checking in devmem_is_allowed() passes
incorrectly. Although the accessing is prevented later because ioremap()
isn't allowed to map system RAM, it is a potential security issue. During
command executing, the following warning is reported in the kernel log for
calling ioremap() on system RAM.
ioremap on RAM at 0x0000000490000000 - 0x0000000490000fff
WARNING: CPU: 2 PID: 416 at arch/x86/mm/ioremap.c:216 __ioremap_caller.constprop.0+0x131/0x35d
Call Trace:
memremap+0xcb/0x184
xlate_dev_mem_ptr+0x25/0x2f
write_mem+0x94/0xfb
vfs_write+0x128/0x26d
ksys_write+0xac/0xfe
do_syscall_64+0x9a/0xfd
entry_SYSCALL_64_after_hwframe+0x4b/0x53
The details of command execution process are as follows. In the above
resource tree, "System RAM" is a descendant of "CXL Window 0" instead of a
top level resource. So, region_intersects() will report no System RAM
resources in the CXL memory region incorrectly, because it only checks the
top level resources. Consequently, devmem_is_allowed() will return 1
(allow access via /dev/mem) for CXL memory region incorrectly.
Fortunately, ioremap() doesn't allow to map System RAM and reject the
access.
So, region_intersects() needs to be fixed to work correctly with the
resource tree with "System RAM" not at top level as above. To fix it, if
we found a unmatched resource in the top level, we will continue to search
matched resources in its descendant resources. So, we will not miss any
matched resources in resource tree anymore.
In the new implementation, an example resource tree
|------------- "CXL Window 0" ------------|
|-- "System RAM" --|
will behave similar as the following fake resource tree for
region_intersects(, IORESOURCE_SYSTEM_RAM, ),
|-- "System RAM" --||-- "CXL Window 0a" --|
Where "CXL Window 0a" is part of the original "CXL Window 0" that
isn't covered by "System RAM".
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 13:46 UTC
Assigner
References
10 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
c221c0b0308fd01d9fb33a16f64d2fd95f8830a4 , < 333fbaf6864a4ca031367eb947961a1f3484d337
(git)
Affected: c221c0b0308fd01d9fb33a16f64d2fd95f8830a4 , < 1d5f85f1b7db79c75c9e07d6571ce2a7bdf725c4 (git) Affected: c221c0b0308fd01d9fb33a16f64d2fd95f8830a4 , < 8a6fef7d22a1d952aed68584d3fcc0d018d2bdc3 (git) Affected: c221c0b0308fd01d9fb33a16f64d2fd95f8830a4 , < 4b90d2eb451b357681063ba4552b10b39d7ad885 (git) Affected: c221c0b0308fd01d9fb33a16f64d2fd95f8830a4 , < 393331e16ce205e036e58b3d8ca4ee2e635f21d9 (git) Affected: c221c0b0308fd01d9fb33a16f64d2fd95f8830a4 , < 06ff97a20b8c9e9d256b0d2c3e87f78f8ccea3de (git) Affected: c221c0b0308fd01d9fb33a16f64d2fd95f8830a4 , < 927abc5b7d6d2c2e936bec5a2f71d9512c5e72f7 (git) Affected: c221c0b0308fd01d9fb33a16f64d2fd95f8830a4 , < b4afe4183ec77f230851ea139d91e5cf2644c68b (git) |
|
| Linux | Linux |
Affected:
5.1
Unaffected: 0 , < 5.1 (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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CVE-2024-49879 (GCVE-0-2024-49879)
Vulnerability from cvelistv5 – Published: 2024-10-21 18:01 – Updated: 2026-05-11 20:41
VLAI
EPSS
VEX
Title
drm: omapdrm: Add missing check for alloc_ordered_workqueue
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm: omapdrm: Add missing check for alloc_ordered_workqueue
As it may return NULL pointer and cause NULL pointer dereference. Add check
for the return value of alloc_ordered_workqueue.
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 13:45 UTC
Assigner
References
10 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
2f95bc6d324a93b2411bcc5defe4d4414c45f325 , < c17a4f52fa3c3dac2dd6a3c38f2de7342d97d74c
(git)
Affected: 2f95bc6d324a93b2411bcc5defe4d4414c45f325 , < 2bda89735199683b03f55b807bd1e31a3857520b (git) Affected: 2f95bc6d324a93b2411bcc5defe4d4414c45f325 , < e60b0d3b5aa2e8d934deca9e11215af84e632bc9 (git) Affected: 2f95bc6d324a93b2411bcc5defe4d4414c45f325 , < f37a1d9e5e22d5489309c3cd2db476dcdcc6530c (git) Affected: 2f95bc6d324a93b2411bcc5defe4d4414c45f325 , < b57b53e8ffcdfda87d954fc4187426a54fe75a3d (git) Affected: 2f95bc6d324a93b2411bcc5defe4d4414c45f325 , < 0d71916694aceb207fefecf62dfa811ec1108bbd (git) Affected: 2f95bc6d324a93b2411bcc5defe4d4414c45f325 , < 334de68eda2b99892ba869c15cb59bc956fd9f42 (git) Affected: 2f95bc6d324a93b2411bcc5defe4d4414c45f325 , < e794b7b9b92977365c693760a259f8eef940c536 (git) |
|
| Linux | Linux |
Affected:
4.11
Unaffected: 0 , < 4.11 (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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CVE-2024-49881 (GCVE-0-2024-49881)
Vulnerability from cvelistv5 – Published: 2024-10-21 18:01 – Updated: 2026-10-15 00:53
VLAI
EPSS
VEX
Title
ext4: update orig_path in ext4_find_extent()
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: update orig_path in ext4_find_extent()
In ext4_find_extent(), if the path is not big enough, we free it and set
*orig_path to NULL. But after reallocating and successfully initializing
the path, we don't update *orig_path, in which case the caller gets a
valid path but a NULL ppath, and this may cause a NULL pointer dereference
or a path memory leak. For example:
ext4_split_extent
path = *ppath = 2000
ext4_find_extent
if (depth > path[0].p_maxdepth)
kfree(path = 2000);
*orig_path = path = NULL;
path = kcalloc() = 3000
ext4_split_extent_at(*ppath = NULL)
path = *ppath;
ex = path[depth].p_ext;
// NULL pointer dereference!
==================================================================
BUG: kernel NULL pointer dereference, address: 0000000000000010
CPU: 6 UID: 0 PID: 576 Comm: fsstress Not tainted 6.11.0-rc2-dirty #847
RIP: 0010:ext4_split_extent_at+0x6d/0x560
Call Trace:
<TASK>
ext4_split_extent.isra.0+0xcb/0x1b0
ext4_ext_convert_to_initialized+0x168/0x6c0
ext4_ext_handle_unwritten_extents+0x325/0x4d0
ext4_ext_map_blocks+0x520/0xdb0
ext4_map_blocks+0x2b0/0x690
ext4_iomap_begin+0x20e/0x2c0
[...]
==================================================================
Therefore, *orig_path is updated when the extent lookup succeeds, so that
the caller can safely use path or *ppath.
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 13:45 UTC
Assigner
References
12 references
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
10809df84a4d868db61af621bae3658494165279 , < ec0c0beb9b777cdd1edd7df9b36e0f3e67e2bdff
(git)
Affected: 10809df84a4d868db61af621bae3658494165279 , < 6766937d0327000ac1b87c97bbecdd28b0dd6599 (git) Affected: 10809df84a4d868db61af621bae3658494165279 , < a9fcb1717d75061d3653ed69365c8d45331815cd (git) Affected: 10809df84a4d868db61af621bae3658494165279 , < 6801ed1298204d16a38571091e31178bfdc3c679 (git) Affected: 10809df84a4d868db61af621bae3658494165279 , < f55ecc58d07a6c1f6d6d5b5af125c25f8da0bda2 (git) Affected: 10809df84a4d868db61af621bae3658494165279 , < b63481b3a388ee2df9e295f97273226140422a42 (git) Affected: 10809df84a4d868db61af621bae3658494165279 , < 11b230100d6801c014fab2afabc8bdea304c1b96 (git) Affected: 10809df84a4d868db61af621bae3658494165279 , < 5b4b2dcace35f618fe361a87bae6f0d13af31bc1 (git) |
|
| Linux | Linux |
Affected:
3.18
Unaffected: 0 , < 3.18 (semver) Unaffected: 4.19.323 , ≤ 4.19.* (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) |
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
|
| Siemens | RUGGEDCOM RST2428P |
Affected:
0 , < V3.2
(custom)
|
|
| Siemens | SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family |
Affected:
0 , < V3.2
(custom)
|
|
| Siemens | SCALANCE XCM-/XRM-/XCH-/XRH-300 family |
Affected:
0 , < V3.2
(custom)
|
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CVE-2024-49882 (GCVE-0-2024-49882)
Vulnerability from cvelistv5 – Published: 2024-10-21 18:01 – Updated: 2026-08-05 11:40
VLAI
EPSS
VEX
Title
ext4: fix double brelse() the buffer of the extents path
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix double brelse() the buffer of the extents path
In ext4_ext_try_to_merge_up(), set path[1].p_bh to NULL after it has been
released, otherwise it may be released twice. An example of what triggers
this is as follows:
split2 map split1
|--------|-------|--------|
ext4_ext_map_blocks
ext4_ext_handle_unwritten_extents
ext4_split_convert_extents
// path->p_depth == 0
ext4_split_extent
// 1. do split1
ext4_split_extent_at
|ext4_ext_insert_extent
| ext4_ext_create_new_leaf
| ext4_ext_grow_indepth
| le16_add_cpu(&neh->eh_depth, 1)
| ext4_find_extent
| // return -ENOMEM
|// get error and try zeroout
|path = ext4_find_extent
| path->p_depth = 1
|ext4_ext_try_to_merge
| ext4_ext_try_to_merge_up
| path->p_depth = 0
| brelse(path[1].p_bh) ---> not set to NULL here
|// zeroout success
// 2. update path
ext4_find_extent
// 3. do split2
ext4_split_extent_at
ext4_ext_insert_extent
ext4_ext_create_new_leaf
ext4_ext_grow_indepth
le16_add_cpu(&neh->eh_depth, 1)
ext4_find_extent
path[0].p_bh = NULL;
path->p_depth = 1
read_extent_tree_block ---> return err
// path[1].p_bh is still the old value
ext4_free_ext_path
ext4_ext_drop_refs
// path->p_depth == 1
brelse(path[1].p_bh) ---> brelse a buffer twice
Finally got the following WARRNING when removing the buffer from lru:
============================================
VFS: brelse: Trying to free free buffer
WARNING: CPU: 2 PID: 72 at fs/buffer.c:1241 __brelse+0x58/0x90
CPU: 2 PID: 72 Comm: kworker/u19:1 Not tainted 6.9.0-dirty #716
RIP: 0010:__brelse+0x58/0x90
Call Trace:
<TASK>
__find_get_block+0x6e7/0x810
bdev_getblk+0x2b/0x480
__ext4_get_inode_loc+0x48a/0x1240
ext4_get_inode_loc+0xb2/0x150
ext4_reserve_inode_write+0xb7/0x230
__ext4_mark_inode_dirty+0x144/0x6a0
ext4_ext_insert_extent+0x9c8/0x3230
ext4_ext_map_blocks+0xf45/0x2dc0
ext4_map_blocks+0x724/0x1700
ext4_do_writepages+0x12d6/0x2a70
[...]
============================================
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
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
ecb94f5fdf4b72547fca022421a9dca1672bddd4 , < d4574bda63906bf69660e001470bfe1a0ac524ae
(git)
Affected: ecb94f5fdf4b72547fca022421a9dca1672bddd4 , < f9fd47c9d9548f9e47fa60098eab99dde175401d (git) Affected: ecb94f5fdf4b72547fca022421a9dca1672bddd4 , < b6c29c8f3d7cb67b505f3b2f6c242d52298d1f2e (git) Affected: ecb94f5fdf4b72547fca022421a9dca1672bddd4 , < 32bbb59e3f18facd7201bef110010bf35819b8c3 (git) Affected: ecb94f5fdf4b72547fca022421a9dca1672bddd4 , < 78bbc3d15b6f443acb26e94418c445bac940d414 (git) Affected: ecb94f5fdf4b72547fca022421a9dca1672bddd4 , < 68a69cf60660c73990c1875f94a5551600b04775 (git) Affected: ecb94f5fdf4b72547fca022421a9dca1672bddd4 , < 7633407ca4ab8be2916ab214eb44ccebc6a50e1a (git) Affected: ecb94f5fdf4b72547fca022421a9dca1672bddd4 , < 230ee0535d01478bad9a3037292043f39b9be10b (git) Affected: ecb94f5fdf4b72547fca022421a9dca1672bddd4 , < dcaa6c31134c0f515600111c38ed7750003e1b9c (git) |
|
| Linux | Linux |
Affected:
3.7
Unaffected: 0 , < 3.7 (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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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
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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"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."
}
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"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"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."
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Loading…
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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