« Volver al listado

CVE-2022-50576

Estado: AplazadaSin puntuar—

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

serial: pch: Fix PCI device refcount leak in pch_request_dma()

As comment of pci_get_slot() says, it returns a pci_device with its refcount increased. The caller must decrement the reference count by calling pci_dev_put().

Since 'dma_dev' is only used to filter the channel in filter(), we can call pci_dev_put() before exiting from pch_request_dma(). Add the missing pci_dev_put() for the normal and error path.

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-2022-50576",
  "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": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
              "lessThan": "90ff030ca10b69feeebda1427550ebf9ed2ad868",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
              "lessThan": "56e5a7c5ee3f0dc8978b5df2b1a98a1b060c5e2a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
              "lessThan": "dfd15c5550b9190d5b0f9bcacb3e6436322f3854",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
              "lessThan": "d165388227aa7e46a9751b90bae6337b5335cdbb",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
              "lessThan": "07f4ca68b0f6bf84b6b391c14b59fd179fcde9c5",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
              "lessThan": "6f7d82380fbeaed3a940efc33c23f0c4bbd0fc02",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
              "lessThan": "4f5d28865c665c9064de631a518f9bc8099d9ce4",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
              "lessThan": "516614a371c26e3334625b4bca19a5362bf658d6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3c6a483275f47a2ef7119309ad3d791c10cf30da",
              "lessThan": "8be3a7bf773700534a6e8f87f6ed2ed111254be5",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/tty/serial/pch_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": "2.6.38"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "2.6.38",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "4.9.337",
              "versionType": "semver",
              "lessThanOrEqual": "4.9.*"
            },
            {
              "status": "unaffected",
              "version": "4.14.303",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "status": "unaffected",
              "version": "4.19.270",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "status": "unaffected",
              "version": "5.4.229",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "status": "unaffected",
              "version": "5.10.163",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.86",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.0.16",
              "versionType": "semver",
              "lessThanOrEqual": "6.0.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.2",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/tty/serial/pch_uart.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-10-22T14:15:42.560",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/07f4ca68b0f6bf84b6b391c14b59fd179fcde9c5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/4f5d28865c665c9064de631a518f9bc8099d9ce4",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/516614a371c26e3334625b4bca19a5362bf658d6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/56e5a7c5ee3f0dc8978b5df2b1a98a1b060c5e2a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6f7d82380fbeaed3a940efc33c23f0c4bbd0fc02",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8be3a7bf773700534a6e8f87f6ed2ed111254be5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/90ff030ca10b69feeebda1427550ebf9ed2ad868",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d165388227aa7e46a9751b90bae6337b5335cdbb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/dfd15c5550b9190d5b0f9bcacb3e6436322f3854",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nserial: pch: Fix PCI device refcount leak in pch_request_dma()\n\nAs comment of pci_get_slot() says, it returns a pci_device with its\nrefcount increased. The caller must decrement the reference count by\ncalling pci_dev_put().\n\nSince 'dma_dev' is only used to filter the channel in filter(), we can\ncall pci_dev_put() before exiting from pch_request_dma(). Add the\nmissing pci_dev_put() for the normal and error path."
    }
  ],
  "lastModified": "2026-06-17T05:23:49.347",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}