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CVE-2026-68220

Estado: RecibidaSin puntuar—

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

media: nxp: imx8-isi: Add missing v4l2_subdev_cleanup() in crossbar and pipe

Both mxc_isi_crossbar_init() and mxc_isi_pipe_init() call v4l2_subdev_init_finalize() which allocates the subdev active state, but neither mxc_isi_crossbar_cleanup() nor mxc_isi_pipe_cleanup() calls v4l2_subdev_cleanup() to free it.

This causes a memory leak on every rmmod, reported by kmemleak:

Add the missing v4l2_subdev_cleanup() calls before media_entity_cleanup() in both crossbar and pipe cleanup paths.

Detalles técnicos trazas, registros y código del informe original
  unreferenced object 0xffff0000d06fc800 (size 192):
    comm "(udev-worker)", pid 254, jiffies 4294913455
    backtrace (crc 36eeae58):
      kmemleak_alloc+0x34/0x40
      __kvmalloc_node_noprof+0x5f8/0x7d8
      __v4l2_subdev_state_alloc+0x1fc/0x30c
      __v4l2_subdev_init_finalize+0x178/0x368

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-2026-68220",
  "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": "cf21f328fcafacf4f96e7a30ef9dceede1076378",
              "lessThan": "549dd1afce2cf79a826d1f9742effb4565d52871",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cf21f328fcafacf4f96e7a30ef9dceede1076378",
              "lessThan": "f04ec98605420e7c2c1ad6d2f6fb26692d4f218a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cf21f328fcafacf4f96e7a30ef9dceede1076378",
              "lessThan": "9e61258fbc3cfc053e4c2ed72254c2de76772354",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cf21f328fcafacf4f96e7a30ef9dceede1076378",
              "lessThan": "9c5ddbabc31fda93a508d9b8f0c776a4a08e49f5",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cf21f328fcafacf4f96e7a30ef9dceede1076378",
              "lessThan": "567418eedd25b3d86d489807682030b4b98b73d9",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/media/platform/nxp/imx8-isi/imx8-isi-crossbar.c",
            "drivers/media/platform/nxp/imx8-isi/imx8-isi-pipe.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.4",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.6.148",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.42",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/media/platform/nxp/imx8-isi/imx8-isi-crossbar.c",
            "drivers/media/platform/nxp/imx8-isi/imx8-isi-pipe.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-10T13:20:10.020",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/549dd1afce2cf79a826d1f9742effb4565d52871",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/567418eedd25b3d86d489807682030b4b98b73d9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9c5ddbabc31fda93a508d9b8f0c776a4a08e49f5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9e61258fbc3cfc053e4c2ed72254c2de76772354",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f04ec98605420e7c2c1ad6d2f6fb26692d4f218a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: nxp: imx8-isi: Add missing v4l2_subdev_cleanup() in crossbar and pipe\n\nBoth mxc_isi_crossbar_init() and mxc_isi_pipe_init() call\nv4l2_subdev_init_finalize() which allocates the subdev active state,\nbut neither mxc_isi_crossbar_cleanup() nor mxc_isi_pipe_cleanup()\ncalls v4l2_subdev_cleanup() to free it.\n\nThis causes a memory leak on every rmmod, reported by kmemleak:\n\n  unreferenced object 0xffff0000d06fc800 (size 192):\n    comm \"(udev-worker)\", pid 254, jiffies 4294913455\n    backtrace (crc 36eeae58):\n      kmemleak_alloc+0x34/0x40\n      __kvmalloc_node_noprof+0x5f8/0x7d8\n      __v4l2_subdev_state_alloc+0x1fc/0x30c\n      __v4l2_subdev_init_finalize+0x178/0x368\n\nAdd the missing v4l2_subdev_cleanup() calls before media_entity_cleanup()\nin both crossbar and pipe cleanup paths."
    }
  ],
  "lastModified": "2026-08-17T05:18:24.213",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}