fkie_cve-2024-42088
Vulnerability from fkie_nvd
Published
2024-07-29 17:15
Modified
2024-11-21 09:33
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/282a4482e198e03781c152c88aac8aa382ef9a55
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/42b9ab7a4d7e6c5efd71847541e4fcc213585aad
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/282a4482e198e03781c152c88aac8aa382ef9a55
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/42b9ab7a4d7e6c5efd71847541e4fcc213585aad
Impacted products
Vendor Product Version


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{
  "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": "2024-11-21T09:33:34.343",
  "metrics": {},
  "published": "2024-07-29T17:15:11.457",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/282a4482e198e03781c152c88aac8aa382ef9a55"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/42b9ab7a4d7e6c5efd71847541e4fcc213585aad"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/282a4482e198e03781c152c88aac8aa382ef9a55"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/42b9ab7a4d7e6c5efd71847541e4fcc213585aad"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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