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CVE-2023-54204

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: mmc: sunplus: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, 1. the memory allocated in mmc_alloc_host() will be leaked 2. null-ptr-deref will happen when calling mmc_remove_host() in remove function spmmc_drv_remove() because deleting not added device. Fix this by checking the return value of mmc_add_host(). Moreover, I fixed the error handling path of spmmc_drv_probe() to clean up.

Severity
Not scored
CVSS score
Not available
Vulnerability status
Deferred
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-12-30 13:16:08.530000
Last modified
2026-10-28 19:10:00.193000
View original CVE JSON
{
  "id": "CVE-2023-54204",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-12-30T13:16:08.530",
  "lastModified": "2026-10-28T19:10:00.193",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: sunplus: fix return value check of mmc_add_host()\n\nmmc_add_host() may return error, if we ignore its return value,\n1. the memory allocated in mmc_alloc_host() will be leaked\n2. null-ptr-deref will happen when calling mmc_remove_host()\nin remove function spmmc_drv_remove() because deleting not\nadded device.\n\nFix this by checking the return value of mmc_add_host(). Moreover,\nI fixed the error handling path of spmmc_drv_probe() to clean up."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nmmc: sunplus: corregir la verificación del valor de retorno de mmc_add_host()\n\nmmc_add_host() puede devolver un error, si ignoramos su valor de retorno,\n1. la memoria asignada en mmc_alloc_host() se filtrará\n2. se producirá una desreferencia de puntero nulo al llamar a mmc_remove_host()\nen la función de eliminación spmmc_drv_remove() porque se elimina un dispositivo no añadido.\n\nCorregir esto verificando el valor de retorno de mmc_add_host(). Además,\ncorregí la ruta de manejo de errores de spmmc_drv_probe() para limpiar."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/mmc/host/sunplus-mmc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "4e268fed8b1861616af28f9cfb4eed8ca5d7af6c",
              "lessThan": "741a951f41929f39cae70c66d86d0754d3129d0a",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "4e268fed8b1861616af28f9cfb4eed8ca5d7af6c",
              "lessThan": "dce6d8f985fa1ef5c2af47f4f86ea65511b78656",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/mmc/host/sunplus-mmc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6.2",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "6.2",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.4.12",
              "lessThanOrEqual": "6.4.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.5",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/741a951f41929f39cae70c66d86d0754d3129d0a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/dce6d8f985fa1ef5c2af47f4f86ea65511b78656",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}