Vulnerability-Lookup

FKIE_CVE-2026-74437

Vulnerability from fkie_nvd - Published: 2026-08-15 06:22 - Updated: 2026-08-17 06:19

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: media: uvcvideo: Fix deadlock if uvc_status_stop is called from async_ctrl.work If a UVC camera has an asynchronous control, uvc_status_stop may be called from async_ctrl.work: uvc_ctrl_status_event_work() uvc_ctrl_status_event() uvc_ctrl_clear_handle() uvc_pm_put() uvc_status_put() uvc_status_stop() cancel_work_sync() This will cause a deadlock, since cancel_work_sync will wait for uvc_ctrl_status_event_work to complete before returning. Fix this by returning early from uvc_status_stop if we are currently in the work function. flush_status now remains false until uvc_status_start is called again, ensuring that uvc_ctrl_status_event_work won't resubmit the URB.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3659deaf7bf690510899a73906b772740d94342c
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6d27f92c54ce28cfbd2a8a479a96d6f4a781b7d2
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7f6c5fe1633272c926361b73d83dfc6ae01b1504

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/usb/uvc/uvc_status.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3659deaf7bf690510899a73906b772740d94342c",
              "status": "affected",
              "version": "a32d9c41bdb86e09ce731aa5fd3add89ac2103a5",
              "versionType": "git"
            },
            {
              "lessThan": "7f6c5fe1633272c926361b73d83dfc6ae01b1504",
              "status": "affected",
              "version": "a32d9c41bdb86e09ce731aa5fd3add89ac2103a5",
              "versionType": "git"
            },
            {
              "lessThan": "6d27f92c54ce28cfbd2a8a479a96d6f4a781b7d2",
              "status": "affected",
              "version": "a32d9c41bdb86e09ce731aa5fd3add89ac2103a5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/usb/uvc/uvc_status.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "lessThan": "6.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "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: uvcvideo: Fix deadlock if uvc_status_stop is called from async_ctrl.work\n\nIf a UVC camera has an asynchronous control, uvc_status_stop may be\ncalled from async_ctrl.work:\n\nuvc_ctrl_status_event_work()\n    uvc_ctrl_status_event()\n        uvc_ctrl_clear_handle()\n\t    uvc_pm_put()\n\t        uvc_status_put()\n\t\t    uvc_status_stop()\n\t\t        cancel_work_sync()\n\nThis will cause a deadlock, since cancel_work_sync will wait for\nuvc_ctrl_status_event_work to complete before returning.\n\nFix this by returning early from uvc_status_stop if we are currently in\nthe work function. flush_status now remains false until uvc_status_start\nis called again, ensuring that uvc_ctrl_status_event_work won\u0027t resubmit\nthe URB."
    }
  ],
  "id": "CVE-2026-74437",
  "lastModified": "2026-08-17T06:19:39.390",
  "metrics": {},
  "published": "2026-08-15T06:22:45.810",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3659deaf7bf690510899a73906b772740d94342c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6d27f92c54ce28cfbd2a8a479a96d6f4a781b7d2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7f6c5fe1633272c926361b73d83dfc6ae01b1504"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-74437 (GCVE-0-2026-74437)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:59 – Updated: 2026-08-17 05:19

Title

media: uvcvideo: Fix deadlock if uvc_status_stop is called from async_ctrl.work

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/3659deaf7bf690510…
https://git.kernel.org/stable/c/7f6c5fe1633272c92…
https://git.kernel.org/stable/c/6d27f92c54ce28cfb…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a32d9c41bdb86e09ce731aa5fd3add89ac2103a5 , < 3659deaf7bf690510899a73906b772740d94342c (git) Affected: a32d9c41bdb86e09ce731aa5fd3add89ac2103a5 , < 7f6c5fe1633272c926361b73d83dfc6ae01b1504 (git) Affected: a32d9c41bdb86e09ce731aa5fd3add89ac2103a5 , < 6d27f92c54ce28cfbd2a8a479a96d6f4a781b7d2 (git)
Linux	Linux	Affected: 6.16 Unaffected: 0 , < 6.16 (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/usb/uvc/uvc_status.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3659deaf7bf690510899a73906b772740d94342c",
              "status": "affected",
              "version": "a32d9c41bdb86e09ce731aa5fd3add89ac2103a5",
              "versionType": "git"
            },
            {
              "lessThan": "7f6c5fe1633272c926361b73d83dfc6ae01b1504",
              "status": "affected",
              "version": "a32d9c41bdb86e09ce731aa5fd3add89ac2103a5",
              "versionType": "git"
            },
            {
              "lessThan": "6d27f92c54ce28cfbd2a8a479a96d6f4a781b7d2",
              "status": "affected",
              "version": "a32d9c41bdb86e09ce731aa5fd3add89ac2103a5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/usb/uvc/uvc_status.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "lessThan": "6.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: uvcvideo: Fix deadlock if uvc_status_stop is called from async_ctrl.work\n\nIf a UVC camera has an asynchronous control, uvc_status_stop may be\ncalled from async_ctrl.work:\n\nuvc_ctrl_status_event_work()\n    uvc_ctrl_status_event()\n        uvc_ctrl_clear_handle()\n\t    uvc_pm_put()\n\t        uvc_status_put()\n\t\t    uvc_status_stop()\n\t\t        cancel_work_sync()\n\nThis will cause a deadlock, since cancel_work_sync will wait for\nuvc_ctrl_status_event_work to complete before returning.\n\nFix this by returning early from uvc_status_stop if we are currently in\nthe work function. flush_status now remains false until uvc_status_start\nis called again, ensuring that uvc_ctrl_status_event_work won\u0027t resubmit\nthe URB."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:19:23.869Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3659deaf7bf690510899a73906b772740d94342c"
        },
        {
          "url": "https://git.kernel.org/stable/c/7f6c5fe1633272c926361b73d83dfc6ae01b1504"
        },
        {
          "url": "https://git.kernel.org/stable/c/6d27f92c54ce28cfbd2a8a479a96d6f4a781b7d2"
        }
      ],
      "title": "media: uvcvideo: Fix deadlock if uvc_status_stop is called from async_ctrl.work",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-74437",
    "datePublished": "2026-08-15T05:59:35.297Z",
    "dateReserved": "2026-08-15T05:44:03.897Z",
    "dateUpdated": "2026-08-17T05:19:23.869Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

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FKIE_CVE-2026-74437

CVE-2026-74437 (GCVE-0-2026-74437)

Tags

Sightings

Nomenclature