CVE-2022-50142
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: intel_th: msu: Fix vmalloced buffers After commit f5ff79fddf0e ("dma-mapping: remove CONFIG_DMA_REMAP") there's a chance of DMA buffer getting allocated via vmalloc(), which messes up the mmapping code: > RIP: msc_mmap_fault [intel_th_msu] > Call Trace: > <TASK> > __do_fault > do_fault ... Fix this by accounting for vmalloc possibility.
Severity
HIGH
CVSS score
7.8
(v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-06-18 11:15:44.187000
Last modified
2026-11-05 20:17:25.173000
View original CVE JSON
{
"id": "CVE-2022-50142",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-06-18T11:15:44.187",
"lastModified": "2026-11-05T20:17:25.173",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nintel_th: msu: Fix vmalloced buffers\n\nAfter commit f5ff79fddf0e (\"dma-mapping: remove CONFIG_DMA_REMAP\") there's\na chance of DMA buffer getting allocated via vmalloc(), which messes up\nthe mmapping code:\n\n> RIP: msc_mmap_fault [intel_th_msu]\n> Call Trace:\n> <TASK>\n> __do_fault\n> do_fault\n...\n\nFix this by accounting for vmalloc possibility."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: intel_th: msu: Reparar búferes vmalloced Después de el commit f5ff79fddf0e (\"dma-mapping: remove CONFIG_DMA_REMAP\") existe la posibilidad de que el buffer DMA se asigne a través de vmalloc(), lo que arruina el código mmapping: > RIP: msc_mmap_fault [intel_th_msu] > Rastreo de llamada: > > __do_fault > do_fault ... Solucione esto teniendo en cuenta la posibilidad de vmalloc."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"drivers/hwtracing/intel_th/msu.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "ba39bd8306057fb343dfb75d93a76d824b625236",
"lessThan": "b5d924cb4c7b952eaa61622f14427723a78137a3",
"versionType": "git",
"status": "affected"
},
{
"version": "ba39bd8306057fb343dfb75d93a76d824b625236",
"lessThan": "6ae2881c1d1fa0e33f4763b7c786f8ef05a9c828",
"versionType": "git",
"status": "affected"
},
{
"version": "ba39bd8306057fb343dfb75d93a76d824b625236",
"lessThan": "566887bad7ff2297d6b3f9659c702ba075f3d62d",
"versionType": "git",
"status": "affected"
},
{
"version": "ba39bd8306057fb343dfb75d93a76d824b625236",
"lessThan": "0ed72c6bc632cbf8d979ac60f982ff84b7bb610a",
"versionType": "git",
"status": "affected"
},
{
"version": "ba39bd8306057fb343dfb75d93a76d824b625236",
"lessThan": "4914c50670b6a531e2cb17cd984cc565b4681312",
"versionType": "git",
"status": "affected"
},
{
"version": "ba39bd8306057fb343dfb75d93a76d824b625236",
"lessThan": "ac12ad3ccf6d386e64a9d6a890595a2509d24edd",
"versionType": "git",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"drivers/hwtracing/intel_th/msu.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "5.2",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.2",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.4.211",
"lessThanOrEqual": "5.4.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.10.137",
"lessThanOrEqual": "5.10.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.15.61",
"lessThanOrEqual": "5.15.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.18.18",
"lessThanOrEqual": "5.18.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.19.2",
"lessThanOrEqual": "5.19.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.0",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-11-05T19:55:09.763418Z",
"id": "CVE-2022-50142",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-787"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.2",
"versionEndExcluding": "5.4.211",
"matchCriteriaId": "1C918407-E556-45B3-AB2F-26F968D0BF3E"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.5",
"versionEndExcluding": "5.10.137",
"matchCriteriaId": "C2BF720F-C5EE-4DE2-9BDF-CE4CFBC767F4"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.11",
"versionEndExcluding": "5.15.61",
"matchCriteriaId": "51861563-7F40-460F-82CD-2D3FBDAD6618"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.16",
"versionEndExcluding": "5.18.18",
"matchCriteriaId": "5B42E453-8837-49D0-A5EF-03F818A6DC11"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.19",
"versionEndExcluding": "5.19.2",
"matchCriteriaId": "A1A2A5A5-4598-4D7E-BA07-4660398D6C8F"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/0ed72c6bc632cbf8d979ac60f982ff84b7bb610a",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/4914c50670b6a531e2cb17cd984cc565b4681312",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/566887bad7ff2297d6b3f9659c702ba075f3d62d",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/6ae2881c1d1fa0e33f4763b7c786f8ef05a9c828",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/ac12ad3ccf6d386e64a9d6a890595a2509d24edd",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
},
{
"url": "https://git.kernel.org/stable/c/b5d924cb4c7b952eaa61622f14427723a78137a3",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
]
}
]
}