« Volver al listado

CVE-2026-98208

Estado: RecibidaSin puntuar—

In the Linux kernel, the following vulnerability has been resolved:

mmc: sdio_uart: fix xmit_fifo leak when the port table is full

sdio_uart_add_port() allocates the transmit fifo before claiming a slot in sdio_uart_table[]. When all UART_NR slots are taken, it returns -EBUSY with the fifo still allocated, but the probe error path only kfree()s the port, leaking the transmit fifo.

Free the fifo in the failure path of sdio_uart_add_port() itself so the function retains nothing on error.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-98208",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "8b197a5ce7a7218bb9fc721647ba0d5734f27348",
              "lessThan": "9e992d59138fcfaa4bad7cc0750265b0a8bca100",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "8b197a5ce7a7218bb9fc721647ba0d5734f27348",
              "lessThan": "b97b5b66c93cb4aaf6358727a73fff880a774dfd",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "8b197a5ce7a7218bb9fc721647ba0d5734f27348",
              "lessThan": "8a2c1bf209ba04cbd14153a771724bd5aa522fcd",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "8b197a5ce7a7218bb9fc721647ba0d5734f27348",
              "lessThan": "72f4c2b7a48423c708f2c348585419a1b71ab04c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "8b197a5ce7a7218bb9fc721647ba0d5734f27348",
              "lessThan": "fd8223c53ad9553b2a349d2a40e19bbc6e60fc48",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "8b197a5ce7a7218bb9fc721647ba0d5734f27348",
              "lessThan": "ac866db277a4c73e84b4263773652e3aba326249",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "8b197a5ce7a7218bb9fc721647ba0d5734f27348",
              "lessThan": "5e142adbbdc54afbd01fad476c91cded41d22594",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "8b197a5ce7a7218bb9fc721647ba0d5734f27348",
              "lessThan": "53823e25793a97d07e6e98e0904bbf74cac8bc76",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/mmc/core/sdio_uart.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.34"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "2.6.34",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.271",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.54",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.8",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc4",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/mmc/core/sdio_uart.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-10-06T09:18:07.017",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/53823e25793a97d07e6e98e0904bbf74cac8bc76",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5e142adbbdc54afbd01fad476c91cded41d22594",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/72f4c2b7a48423c708f2c348585419a1b71ab04c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8a2c1bf209ba04cbd14153a771724bd5aa522fcd",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9e992d59138fcfaa4bad7cc0750265b0a8bca100",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ac866db277a4c73e84b4263773652e3aba326249",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b97b5b66c93cb4aaf6358727a73fff880a774dfd",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/fd8223c53ad9553b2a349d2a40e19bbc6e60fc48",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: sdio_uart: fix xmit_fifo leak when the port table is full\n\nsdio_uart_add_port() allocates the transmit fifo before claiming a\nslot in sdio_uart_table[].  When all UART_NR slots are taken, it\nreturns -EBUSY with the fifo still allocated, but the probe error\npath only kfree()s the port, leaking the transmit fifo.\n\nFree the fifo in the failure path of sdio_uart_add_port() itself so\nthe function retains nothing on error."
    }
  ],
  "lastModified": "2026-10-06T09:18:07.017",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}