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GHSA-CJ8F-PJ7X-5X2C

Vulnerability from github – Published: 2026-07-25 12:31 – Updated: 2026-07-25 12:31

Details

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

media: mtk-jpeg: cancel workqueue on release for supported platforms only

Since a recent fix the mtk_jpeg_release function cancels any pending or running work present in the driver workqueue using cancel_work_sync function. Currently, only the multicore based variants use this workqueue and they have the jpeg_worker platform data field initialized with a workqueue callback function. For the others, this field value remain NULL by default. The cancel_work_sync function is unconditionally called in mtk_jpeg_release function, even for the variants that do not use the workqueue. This call generates a WARN_ON print in __flush_work because the workqueue callback function presence check fails in __flush_work function (used by cancel_work_sync).

So, to avoid these warnings, call cancel_work_sync only if a workqueue callback is defined in platform data.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-64358"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-25T10:17:18Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: mtk-jpeg: cancel workqueue on release for supported platforms only\n\nSince a recent fix the mtk_jpeg_release function cancels any pending\nor running work present in the driver workqueue using\ncancel_work_sync function.\nCurrently, only the multicore based variants use this workqueue and they\nhave the jpeg_worker platform data field initialized with a workqueue\ncallback function. For the others, this field value remain NULL by\ndefault.\nThe cancel_work_sync function is unconditionally called in\nmtk_jpeg_release function, even for the variants that do not use the\nworkqueue. This call generates a WARN_ON print in __flush_work because\nthe workqueue callback function presence check fails in __flush_work\nfunction (used by cancel_work_sync).\n\nSo, to avoid these warnings, call cancel_work_sync only if a workqueue\ncallback is defined in platform data.",
  "id": "GHSA-cj8f-pj7x-5x2c",
  "modified": "2026-07-25T12:31:32Z",
  "published": "2026-07-25T12:31:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64358"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0fed0fc34ce734b4b8c2f6a467d38bddcb21dda9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4c4b4af4a9f278da096f0dbdb6b59594701d29bf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/973408ceab14555a8548b97c8cc7b54208c3f251"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ac0774961a6ea174a71d4ffa39966edafbf7662d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b1845a227fda37b2fe5327df3ca0015d7e290235"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-64358 (GCVE-0-2026-64358)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:50 – Updated: 2026-07-25 08:50

Title

media: mtk-jpeg: cancel workqueue on release for supported platforms only

Summary

In the Linux kernel, the following vulnerability has been resolved: media: mtk-jpeg: cancel workqueue on release for supported platforms only Since a recent fix the mtk_jpeg_release function cancels any pending or running work present in the driver workqueue using cancel_work_sync function. Currently, only the multicore based variants use this workqueue and they have the jpeg_worker platform data field initialized with a workqueue callback function. For the others, this field value remain NULL by default. The cancel_work_sync function is unconditionally called in mtk_jpeg_release function, even for the variants that do not use the workqueue. This call generates a WARN_ON print in __flush_work because the workqueue callback function presence check fails in __flush_work function (used by cancel_work_sync). So, to avoid these warnings, call cancel_work_sync only if a workqueue callback is defined in platform data.

Severity

No CVSS data available.

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/0fed0fc34ce734b4b…
https://git.kernel.org/stable/c/ac0774961a6ea174a…
https://git.kernel.org/stable/c/973408ceab14555a8…
https://git.kernel.org/stable/c/4c4b4af4a9f278da0…
https://git.kernel.org/stable/c/b1845a227fda37b2f…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 2209fdae5c2f615930c9af1379c1cfca199ec5d8 , < 0fed0fc34ce734b4b8c2f6a467d38bddcb21dda9 (git) Affected: 0498b27a1542021d90269d58347501d4c3ccd84e , < ac0774961a6ea174a71d4ffa39966edafbf7662d (git) Affected: 26506a30e0e26d612f82a7bf0e395626968a44e6 , < 973408ceab14555a8548b97c8cc7b54208c3f251 (git) Affected: 34c519feef3e4fcff1078dc8bdb25fbbbd10303f , < 4c4b4af4a9f278da096f0dbdb6b59594701d29bf (git) Affected: 34c519feef3e4fcff1078dc8bdb25fbbbd10303f , < b1845a227fda37b2fe5327df3ca0015d7e290235 (git) Affected: e78c39f720679fcf3a2eacd82725ec3ea2648301 (git) Affected: 6.6.140 , < 6.6.145 (semver) Affected: 6.12.86 , < 6.12.96 (semver) Affected: 6.18.27 , < 6.18.39 (semver) Affected: 7.0.4 , < 7.1 (semver)
Linux	Linux	Affected: 7.1 Unaffected: 0 , < 7.1 (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.96 , ≤ 6.12.* (semver) Unaffected: 6.18.39 , ≤ 6.18.* (semver) Unaffected: 7.1.4 , ≤ 7.1.* (semver) Unaffected: 7.2-rc1 , ≤ * (original_commit_for_fix)

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            },
            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "7.1.4",
              "versionType": "semver"
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        }
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        {
          "url": "https://git.kernel.org/stable/c/b1845a227fda37b2fe5327df3ca0015d7e290235"
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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.

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GHSA-CJ8F-PJ7X-5X2C

CVE-2026-64358 (GCVE-0-2026-64358)

Tags

Sightings

Nomenclature