FKIE_CVE-2026-68220

Vulnerability from fkie_nvd - Published: 2026-08-10 13:20 - Updated: 2026-08-17 05:18
Severity
Summary
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: 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 Add the missing v4l2_subdev_cleanup() calls before media_entity_cleanup() in both crossbar and pipe cleanup paths.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/549dd1afce2cf79a826d1f9742effb4565d52871
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/567418eedd25b3d86d489807682030b4b98b73d9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9c5ddbabc31fda93a508d9b8f0c776a4a08e49f5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9e61258fbc3cfc053e4c2ed72254c2de76772354
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f04ec98605420e7c2c1ad6d2f6fb26692d4f218a
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/platform/nxp/imx8-isi/imx8-isi-crossbar.c",
            "drivers/media/platform/nxp/imx8-isi/imx8-isi-pipe.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "549dd1afce2cf79a826d1f9742effb4565d52871",
              "status": "affected",
              "version": "cf21f328fcafacf4f96e7a30ef9dceede1076378",
              "versionType": "git"
            },
            {
              "lessThan": "f04ec98605420e7c2c1ad6d2f6fb26692d4f218a",
              "status": "affected",
              "version": "cf21f328fcafacf4f96e7a30ef9dceede1076378",
              "versionType": "git"
            },
            {
              "lessThan": "9e61258fbc3cfc053e4c2ed72254c2de76772354",
              "status": "affected",
              "version": "cf21f328fcafacf4f96e7a30ef9dceede1076378",
              "versionType": "git"
            },
            {
              "lessThan": "9c5ddbabc31fda93a508d9b8f0c776a4a08e49f5",
              "status": "affected",
              "version": "cf21f328fcafacf4f96e7a30ef9dceede1076378",
              "versionType": "git"
            },
            {
              "lessThan": "567418eedd25b3d86d489807682030b4b98b73d9",
              "status": "affected",
              "version": "cf21f328fcafacf4f96e7a30ef9dceede1076378",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/platform/nxp/imx8-isi/imx8-isi-crossbar.c",
            "drivers/media/platform/nxp/imx8-isi/imx8-isi-pipe.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "lessThan": "6.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.148",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.42",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-68220",
  "lastModified": "2026-08-17T05:18:24.213",
  "metrics": {},
  "published": "2026-08-10T13:20:10.020",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "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"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.