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GHSA-2Q2H-4P8V-3772

Vulnerability from github – Published: 2026-09-17 18:32 – Updated: 2026-09-17 18:32

Details

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

media: ipu6: Do not free aux device pdata after init

ipu6_bus_initialize_device() stores the isys/psys pdata pointer in struct ipu6_bus_device and initializes the auxiliary device. After that point, error unwinding must drop the auxiliary device reference and let ipu6_bus_release() free both the bus device and adev->pdata.

The isys and psys init paths already call put_device() when MMU initialization fails, and ipu6_bus_add_device() calls auxiliary_device_uninit() on auxiliary_device_add() failure. Both paths therefore run the bus release callback. The extra kfree(pdata) in the callers can release the same object a second time.

Remove the manual pdata frees after the auxiliary device has been initialized.

This issue was found by a static analysis checker and confirmed by manual source review.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-93070"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-17T17:18:00Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: ipu6: Do not free aux device pdata after init\n\nipu6_bus_initialize_device() stores the isys/psys pdata pointer in\nstruct ipu6_bus_device and initializes the auxiliary device. After that\npoint, error unwinding must drop the auxiliary device reference and let\nipu6_bus_release() free both the bus device and adev-\u003epdata.\n\nThe isys and psys init paths already call put_device() when MMU\ninitialization fails, and ipu6_bus_add_device() calls\nauxiliary_device_uninit() on auxiliary_device_add() failure. Both paths\ntherefore run the bus release callback. The extra kfree(pdata) in the\ncallers can release the same object a second time.\n\nRemove the manual pdata frees after the auxiliary device has been\ninitialized.\n\nThis issue was found by a static analysis checker and confirmed by\nmanual source review.",
  "id": "GHSA-2q2h-4p8v-3772",
  "modified": "2026-09-17T18:32:09Z",
  "published": "2026-09-17T18:32:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93070"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5323ed5a7bb2568191ec676b2035b0396105aa05"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7d102d1f0631807a491a140f67c9628dea85dfd2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9be07216af4cfc4813e1a46ce26407d31ea845de"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/faa1eb97f0e66bf122f44b62be6b323f86333e9f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-93070 (GCVE-0-2026-93070)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:10 – Updated: 2026-09-17 16:10

Title

media: ipu6: Do not free aux device pdata after init

Summary

In the Linux kernel, the following vulnerability has been resolved: media: ipu6: Do not free aux device pdata after init ipu6_bus_initialize_device() stores the isys/psys pdata pointer in struct ipu6_bus_device and initializes the auxiliary device. After that point, error unwinding must drop the auxiliary device reference and let ipu6_bus_release() free both the bus device and adev->pdata. The isys and psys init paths already call put_device() when MMU initialization fails, and ipu6_bus_add_device() calls auxiliary_device_uninit() on auxiliary_device_add() failure. Both paths therefore run the bus release callback. The extra kfree(pdata) in the callers can release the same object a second time. Remove the manual pdata frees after the auxiliary device has been initialized. This issue was found by a static analysis checker and confirmed by manual source review.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/faa1eb97f0e66bf12…
https://git.kernel.org/stable/c/5323ed5a7bb256819…
https://git.kernel.org/stable/c/7d102d1f0631807a4…
https://git.kernel.org/stable/c/9be07216af4cfc481…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: cb3117b074aefb0320d8d728a0a7f277a121adbd , < faa1eb97f0e66bf122f44b62be6b323f86333e9f (git) Affected: cb3117b074aefb0320d8d728a0a7f277a121adbd , < 5323ed5a7bb2568191ec676b2035b0396105aa05 (git) Affected: cb3117b074aefb0320d8d728a0a7f277a121adbd , < 7d102d1f0631807a491a140f67c9628dea85dfd2 (git) Affected: cb3117b074aefb0320d8d728a0a7f277a121adbd , < 9be07216af4cfc4813e1a46ce26407d31ea845de (git)
Linux	Linux	Affected: 6.10 Unaffected: 0 , < 6.10 (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)

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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.
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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