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CVE-2026-68220 (GCVE-0-2026-68220)

Vulnerability from cvelistv5 – Published: 2026-08-10 12:00 – Updated: 2026-08-17 05:01
VLAI
Title
media: nxp: imx8-isi: Add missing v4l2_subdev_cleanup() in crossbar and pipe
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: cf21f328fcafacf4f96e7a30ef9dceede1076378 , < 549dd1afce2cf79a826d1f9742effb4565d52871 (git)
Affected: cf21f328fcafacf4f96e7a30ef9dceede1076378 , < f04ec98605420e7c2c1ad6d2f6fb26692d4f218a (git)
Affected: cf21f328fcafacf4f96e7a30ef9dceede1076378 , < 9e61258fbc3cfc053e4c2ed72254c2de76772354 (git)
Affected: cf21f328fcafacf4f96e7a30ef9dceede1076378 , < 9c5ddbabc31fda93a508d9b8f0c776a4a08e49f5 (git)
Affected: cf21f328fcafacf4f96e7a30ef9dceede1076378 , < 567418eedd25b3d86d489807682030b4b98b73d9 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.4
Unaffected: 0 , < 6.4 (semver)
Unaffected: 6.6.148 , ≤ 6.6.* (semver)
Unaffected: 6.12.101 , ≤ 6.12.* (semver)
Unaffected: 6.18.42 , ≤ 6.18.* (semver)
Unaffected: 7.1.6 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "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"
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          ],
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          "vendor": "Linux",
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      ],
      "cpeApplicability": [
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              "operator": "OR"
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          "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:01:06.897Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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          "url": "https://git.kernel.org/stable/c/549dd1afce2cf79a826d1f9742effb4565d52871"
        },
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          "url": "https://git.kernel.org/stable/c/f04ec98605420e7c2c1ad6d2f6fb26692d4f218a"
        },
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          "url": "https://git.kernel.org/stable/c/9e61258fbc3cfc053e4c2ed72254c2de76772354"
        },
        {
          "url": "https://git.kernel.org/stable/c/9c5ddbabc31fda93a508d9b8f0c776a4a08e49f5"
        },
        {
          "url": "https://git.kernel.org/stable/c/567418eedd25b3d86d489807682030b4b98b73d9"
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      ],
      "title": "media: nxp: imx8-isi: Add missing v4l2_subdev_cleanup() in crossbar and pipe",
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        "engine": "bippy-1.2.0"
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-68220",
    "datePublished": "2026-08-10T12:00:40.434Z",
    "dateReserved": "2026-07-30T09:28:09.375Z",
    "dateUpdated": "2026-08-17T05:01:06.897Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
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      "date": "2026-09-16",
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      "percentile": "0.11263"
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    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-08-11T12:31:57+00:00",
      "cve": "CVE-2026-68220",
      "id": "CVE-2026-68220",
      "initial_release_date": "2026-08-10T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: media: nxp: imx8-isi: Add missing v4l2_subdev_cleanup() in crossbar and pipe",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-68220.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-09-15T01:38:47Z",
      "cve": "CVE-2026-68220",
      "id": "CVE-2026-68220",
      "initial_release_date": "2026-08-18T16:55:58Z",
      "product_status:first_fixed": "65",
      "product_status:known_affected": "424",
      "product_status:known_not_affected": "340",
      "product_status:recommended": "42",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-68220",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-68220.json",
      "version": "4"
    }
  }
}



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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.
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  • 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.


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