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


To clipboard 

{
   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't 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 && !strncmp(dai_link->name, \"AFE_SOF\", strlen(\"AFE_SOF\")))\n\t\t\tdai_link->platforms->of_node = adsp_node;\n\t\telse if (!dai_link->platforms->name && !dai_link->platforms->of_node)\n\t\t\tdai_link->platforms->of_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->platforms 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 confirmación e70b8dd26711 (\"ASoC: mediatek: mt8195: Eliminar el componente afe-dai y volver a trabajar el enlace del códec\") eliminó la entrada del códec. para el enlace dai ETDM1_OUT_BE por completo en lugar de reemplazarlo con COMP_EMPTY(). Esto funcionó por accidente ya que la entrada restante de la plataforma COMP_EMPTY() se convirtió en la entrada del códec, y la entrada de la plataforma quedó completamente vacía, 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 límites 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 && !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;  } donde el código espera que la matriz de plataformas tenga espacio para al menos una entrada. Agregue una entrada COMP_EMPTY() para que dai_link->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",
}


Log in or create an account to share your comment.

Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.