FKIE_CVE-2024-44954
Vulnerability from fkie_nvd - Published: 2024-09-04 19:15 - Updated: 2026-08-04 11:20
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
4.7 (Medium) - CVSS:3.1/
Summary
In the Linux kernel, the following vulnerability has been resolved:
ALSA: line6: Fix racy access to midibuf
There can be concurrent accesses to line6 midibuf from both the URB
completion callback and the rawmidi API access. This could be a cause
of KMSAN warning triggered by syzkaller below (so put as reported-by
here).
This patch protects the midibuf call of the former code path with a
spinlock for avoiding the possible races.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | 6.11 | |
| linux | linux_kernel | 6.11 |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"sound/usb/line6/driver.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "643293b68fbb6c03f5e907736498da17d43f0d81",
"status": "affected",
"version": "705ececd1c60d0f5d6ef2a719008847883516970",
"versionType": "git"
},
{
"lessThan": "40f3d5cb0e0cbf7fa697913a27d5d361373bdcf5",
"status": "affected",
"version": "705ececd1c60d0f5d6ef2a719008847883516970",
"versionType": "git"
},
{
"lessThan": "e7e7d2b180d8f297cea6db43ea72402fd33e1a29",
"status": "affected",
"version": "705ececd1c60d0f5d6ef2a719008847883516970",
"versionType": "git"
},
{
"lessThan": "a54da4b787dcac60b598da69c9c0072812b8282d",
"status": "affected",
"version": "705ececd1c60d0f5d6ef2a719008847883516970",
"versionType": "git"
},
{
"lessThan": "c80f454a805443c274394b1db0d1ebf477abd94e",
"status": "affected",
"version": "705ececd1c60d0f5d6ef2a719008847883516970",
"versionType": "git"
},
{
"lessThan": "535df7f896a568a8a1564114eaea49d002cb1747",
"status": "affected",
"version": "705ececd1c60d0f5d6ef2a719008847883516970",
"versionType": "git"
},
{
"lessThan": "51d87f11dd199bbc6a85982b088ff27bde53b48a",
"status": "affected",
"version": "705ececd1c60d0f5d6ef2a719008847883516970",
"versionType": "git"
},
{
"lessThan": "15b7a03205b31bc5623378c190d22b7ff60026f1",
"status": "affected",
"version": "705ececd1c60d0f5d6ef2a719008847883516970",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"sound/usb/line6/driver.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.30"
},
{
"lessThan": "2.6.30",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.320",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.282",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.224",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.165",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.105",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.46",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.10.*",
"status": "unaffected",
"version": "6.10.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.11",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "0B4EF915-550B-45E5-B2CA-648FEACD60FC",
"versionEndExcluding": "4.19.320",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "21D0A18B-9B7E-4C59-A2A6-8A94BBA4E0FD",
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},
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"versionStartIncluding": "5.5",
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},
{
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"versionEndExcluding": "5.15.165",
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},
{
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},
{
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{
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"matchCriteriaId": "D074AE50-4A5E-499C-A2FD-75FD60DEA560",
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"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*",
"matchCriteriaId": "8B3CE743-2126-47A3-8B7C-822B502CF119",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*",
"matchCriteriaId": "4DEB27E7-30AA-45CC-8934-B89263EF3551",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: line6: Fix racy access to midibuf\n\nThere can be concurrent accesses to line6 midibuf from both the URB\ncompletion callback and the rawmidi API access. This could be a cause\nof KMSAN warning triggered by syzkaller below (so put as reported-by\nhere).\n\nThis patch protects the midibuf call of the former code path with a\nspinlock for avoiding the possible races."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ALSA: line6: Fix racy access to midibuf Puede haber accesos concurrentes a midibuf de line6 tanto desde la devoluci\u00f3n de llamada de finalizaci\u00f3n de URB como desde el acceso a la API rawmidi. Esto podr\u00eda ser la causa de la advertencia KMSAN activada por syzkaller a continuaci\u00f3n (as\u00ed que se indica aqu\u00ed). Este parche protege la llamada midibuf de la ruta de c\u00f3digo anterior con un spinlock para evitar las posibles ejecuciones."
}
],
"id": "CVE-2024-44954",
"lastModified": "2026-08-04T11:20:03.913",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary"
},
{
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 4.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
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"scope": "UNCHANGED",
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"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.0,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
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"ssvcData": {
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"options": [
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},
{
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},
{
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}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-10T17:40:10.329711Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-09-04T19:15:30.353",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
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"url": "https://git.kernel.org/stable/c/15b7a03205b31bc5623378c190d22b7ff60026f1"
},
{
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},
{
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"url": "https://git.kernel.org/stable/c/535df7f896a568a8a1564114eaea49d002cb1747"
},
{
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{
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"
},
{
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"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
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{
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"value": "CWE-362"
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],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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