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CVE-2026-93101 (GCVE-0-2026-93101)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:11 – Updated: 2026-09-17 16:11
VLAI
Title
media: v4l2-async: Unregister sub-device if asc_list is empty
Summary
In the Linux kernel, the following vulnerability has been resolved: media: v4l2-async: Unregister sub-device if asc_list is empty When my em28xx USB device that uses the i2c tvp5150 driver is disconnected, it crashes. The cause is that the tvp5150 i2c module uses v4l2_async, but the em28xx driver does not since it predates v4l2_async. In that corner case sd->asc_list is empty, so v4l2_async_unregister_subdev() never calls v4l2_device_unregister_subdev(). Modify the code so that, if sd->asc_list is empty, v4l2_device_unregister_subdev() is still called.
Severity
No CVSS data available.
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 28a1295795d85a25f2e7dd391c43969e95fcb341 , < c7201bd08cad791858337e33ffcd90d8ae4147c2 (git)
Affected: 28a1295795d85a25f2e7dd391c43969e95fcb341 , < e190320cebe921f99973c984ac53f317061a011f (git)
Affected: 28a1295795d85a25f2e7dd391c43969e95fcb341 , < 65e55f34fb2d61cb4f8a5dfcb93848af2aea0f32 (git)
Affected: 28a1295795d85a25f2e7dd391c43969e95fcb341 , < 9fb74dce5c650cb23b60f6ba0ffcd5024e948a75 (git)
Affected: 28a1295795d85a25f2e7dd391c43969e95fcb341 , < 4e72f13d58c4245c177a9d5f54579345554f354d (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 6.6.157 , ≤ 6.6.* (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.52 , ≤ 6.18.* (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/v4l2-core/v4l2-async.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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              "versionType": "git"
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "6.6"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
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              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
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              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.6",
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                },
                {
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                },
                {
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                  "vulnerable": true
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              ],
              "negate": false,
              "operator": "OR"
            }
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: v4l2-async: Unregister sub-device if asc_list is empty\n\nWhen my em28xx USB device that uses the i2c tvp5150 driver is\ndisconnected, it crashes.\n\nThe cause is that the tvp5150 i2c module uses v4l2_async, but\nthe em28xx driver does not since it predates v4l2_async.\n\nIn that corner case sd-\u003easc_list is empty, so\nv4l2_async_unregister_subdev() never calls v4l2_device_unregister_subdev().\n\nModify the code so that, if sd-\u003easc_list is empty,\nv4l2_device_unregister_subdev() is still called."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T16:11:13.738Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/c7201bd08cad791858337e33ffcd90d8ae4147c2"
        },
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          "url": "https://git.kernel.org/stable/c/e190320cebe921f99973c984ac53f317061a011f"
        },
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          "url": "https://git.kernel.org/stable/c/65e55f34fb2d61cb4f8a5dfcb93848af2aea0f32"
        },
        {
          "url": "https://git.kernel.org/stable/c/9fb74dce5c650cb23b60f6ba0ffcd5024e948a75"
        },
        {
          "url": "https://git.kernel.org/stable/c/4e72f13d58c4245c177a9d5f54579345554f354d"
        }
      ],
      "title": "media: v4l2-async: Unregister sub-device if asc_list is empty",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93101",
    "datePublished": "2026-09-17T16:11:13.738Z",
    "dateReserved": "2026-09-17T16:02:15.085Z",
    "dateUpdated": "2026-09-17T16:11:13.738Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
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                "product": "Linux",
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                ],
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                "vendor": "Linux",
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                    "versionType": "semver"
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          }
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: v4l2-async: Unregister sub-device if asc_list is empty\n\nWhen my em28xx USB device that uses the i2c tvp5150 driver is\ndisconnected, it crashes.\n\nThe cause is that the tvp5150 i2c module uses v4l2_async, but\nthe em28xx driver does not since it predates v4l2_async.\n\nIn that corner case sd-\u003easc_list is empty, so\nv4l2_async_unregister_subdev() never calls v4l2_device_unregister_subdev().\n\nModify the code so that, if sd-\u003easc_list is empty,\nv4l2_device_unregister_subdev() is still called."
          }
        ],
        "id": "CVE-2026-93101",
        "lastModified": "2026-09-17T17:18:04.357",
        "metrics": {},
        "published": "2026-09-17T17:18:04.357",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "suse_vex": {
      "aggregate_severity": "not set",
      "current_release_date": "2026-09-18T00:12:05Z",
      "cve": "CVE-2026-93101",
      "id": "CVE-2026-93101",
      "initial_release_date": "2026-09-18T00:12:05Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-93101",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-93101.json",
      "version": "2"
    }
  }
}



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