fkie_cve-2024-42088
Vulnerability from fkie_nvd
Published
2024-07-29 17:15
Modified
2025-09-25 20:14
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ASoC: mediatek: mt8195: Add platform entry for ETDM1_OUT_BE dai link
Commit e70b8dd26711 ("ASoC: mediatek: mt8195: Remove afe-dai component
and rework codec link") removed the codec entry for the ETDM1_OUT_BE
dai link entirely instead of replacing it with COMP_EMPTY(). This worked
by accident as the remaining COMP_EMPTY() platform entry became the codec
entry, and the platform entry became completely empty, effectively the
same as COMP_DUMMY() since snd_soc_fill_dummy_dai() doesn't do anything
for platform entries.
This causes a KASAN out-of-bounds warning in mtk_soundcard_common_probe()
in sound/soc/mediatek/common/mtk-soundcard-driver.c:
for_each_card_prelinks(card, i, dai_link) {
if (adsp_node && !strncmp(dai_link->name, "AFE_SOF", strlen("AFE_SOF")))
dai_link->platforms->of_node = adsp_node;
else if (!dai_link->platforms->name && !dai_link->platforms->of_node)
dai_link->platforms->of_node = platform_node;
}
where the code expects the platforms array to have space for at least one entry.
Add an COMP_EMPTY() entry so that dai_link->platforms has space.
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
linux | linux_kernel | * | |
linux | linux_kernel | 6.10 | |
linux | linux_kernel | 6.10 | |
linux | linux_kernel | 6.10 | |
linux | linux_kernel | 6.10 | |
linux | linux_kernel | 6.10 |
{ "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "01A4BD4E-FEF5-4966-9017-7AAE1629F735", "versionEndExcluding": "6.9.8", "versionStartIncluding": "6.8", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*", "matchCriteriaId": "2EBB4392-5FA6-4DA9-9772-8F9C750109FA", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*", "matchCriteriaId": "331C2F14-12C7-45D5-893D-8C52EE38EA10", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:*", "matchCriteriaId": "3173713D-909A-4DD3-9DD4-1E171EB057EE", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc4:*:*:*:*:*:*", "matchCriteriaId": "79F18AFA-40F7-43F0-BA30-7BDB65F918B9", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc5:*:*:*:*:*:*", "matchCriteriaId": "BD973AA4-A789-49BD-8D57-B2846935D3C7", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: mediatek: mt8195: Add platform entry for ETDM1_OUT_BE dai link\n\nCommit e70b8dd26711 (\"ASoC: mediatek: mt8195: Remove afe-dai component\nand rework codec link\") removed the codec entry for the ETDM1_OUT_BE\ndai link entirely instead of replacing it with COMP_EMPTY(). This worked\nby accident as the remaining COMP_EMPTY() platform entry became the codec\nentry, and the platform entry became completely empty, effectively the\nsame as COMP_DUMMY() since snd_soc_fill_dummy_dai() doesn\u0027t do anything\nfor platform entries.\n\nThis causes a KASAN out-of-bounds warning in mtk_soundcard_common_probe()\nin sound/soc/mediatek/common/mtk-soundcard-driver.c:\n\n\tfor_each_card_prelinks(card, i, dai_link) {\n\t\tif (adsp_node \u0026\u0026 !strncmp(dai_link-\u003ename, \"AFE_SOF\", strlen(\"AFE_SOF\")))\n\t\t\tdai_link-\u003eplatforms-\u003eof_node = adsp_node;\n\t\telse if (!dai_link-\u003eplatforms-\u003ename \u0026\u0026 !dai_link-\u003eplatforms-\u003eof_node)\n\t\t\tdai_link-\u003eplatforms-\u003eof_node = platform_node;\n\t}\n\nwhere the code expects the platforms array to have space for at least one entry.\n\nAdd an COMP_EMPTY() entry so that dai_link-\u003eplatforms has space." }, { "lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ASoC: mediatek: mt8195: Agregar entrada de plataforma para el enlace dai ETDM1_OUT_BE. La confirmaci\u00f3n e70b8dd26711 (\"ASoC: mediatek: mt8195: Eliminar el componente afe-dai y volver a trabajar el enlace del c\u00f3dec\") elimin\u00f3 la entrada del c\u00f3dec. para el enlace dai ETDM1_OUT_BE por completo en lugar de reemplazarlo con COMP_EMPTY(). Esto funcion\u00f3 por accidente ya que la entrada restante de la plataforma COMP_EMPTY() se convirti\u00f3 en la entrada del c\u00f3dec, y la entrada de la plataforma qued\u00f3 completamente vac\u00eda, efectivamente lo mismo que COMP_DUMMY() ya que snd_soc_fill_dummy_dai() no hace nada para las entradas de la plataforma. Esto provoca una advertencia de fuera de los l\u00edmites de KASAN en mtk_soundcard_common_probe() en sound/soc/mediatek/common/mtk-soundcard-driver.c: for_each_card_prelinks(card, i, dai_link) { if (adsp_node \u0026amp;\u0026amp; !strncmp(dai_link-\u0026gt; name, \"AFE_SOF\", strlen(\"AFE_SOF\"))) dai_link-\u0026gt;platforms-\u0026gt;of_node = adsp_node; else if (!!dai_link-\u0026gt;platforms-\u0026gt;name \u0026amp;\u0026amp; !dai_link-\u0026gt;platforms-\u0026gt;of_node) dai_link-\u0026gt;platforms-\u0026gt;of_node = platform_node; } donde el c\u00f3digo espera que la matriz de plataformas tenga espacio para al menos una entrada. Agregue una entrada COMP_EMPTY() para que dai_link-\u0026gt;platforms tenga espacio." } ], "id": "CVE-2024-42088", "lastModified": "2025-09-25T20:14:24.957", "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": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2024-07-29T17:15:11.457", "references": [ { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/282a4482e198e03781c152c88aac8aa382ef9a55" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/42b9ab7a4d7e6c5efd71847541e4fcc213585aad" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/282a4482e198e03781c152c88aac8aa382ef9a55" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/42b9ab7a4d7e6c5efd71847541e4fcc213585aad" } ], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-129" } ], "source": "nvd@nist.gov", "type": "Primary" } ] }
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Nomenclature
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