Vulnerability-Lookup

GHSA-8258-QF7J-HR2G

Vulnerability from github – Published: 2026-09-16 12:30 – Updated: 2026-09-16 12:30

Details

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

media: s2255: check firmware size before reading trailing marker

s2255_probe() reads a 4-byte marker and version from the last 8 bytes of the firmware blob (fw->data[fw_size - 8] and [fw_size - 4]). If the firmware file is shorter than 8 bytes, fw_size - 8 underflows and the access reads out of bounds. Validate the firmware size before indexing.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-89878"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-16T11:16:56Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: s2255: check firmware size before reading trailing marker\n\ns2255_probe() reads a 4-byte marker and version from the last 8 bytes\nof the firmware blob (fw-\u003edata[fw_size - 8] and [fw_size - 4]). If the\nfirmware file is shorter than 8 bytes, fw_size - 8 underflows and the\naccess reads out of bounds. Validate the firmware size before indexing.",
  "id": "GHSA-8258-qf7j-hr2g",
  "modified": "2026-09-16T12:30:40Z",
  "published": "2026-09-16T12:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89878"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/330f2936ab768c7215322a476f033143e8891d28"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/342632a4d8ba3fafc1556deee0b7a48dd7860336"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3e03f1209c1c8a45a7bc559f4ecd79d9b33f706d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5626785b0e4665326e4d96736c106161da09b2f0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6f6a5b0b0a84c2de0e152f2841e57bc226db924f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7d221859ba45d7228d0138c9a3e55bd3bb31e14e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8eca0f85eeb0789be40e637bcf9a21c4265b6c6f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ffc27411ea60b8a09f1fea3d664b65210fdeb454"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-89878 (GCVE-0-2026-89878)

Vulnerability from cvelistv5 – Published: 2026-09-16 10:31 – Updated: 2026-09-16 10:31

Title

media: s2255: check firmware size before reading trailing marker

Summary

In the Linux kernel, the following vulnerability has been resolved: media: s2255: check firmware size before reading trailing marker s2255_probe() reads a 4-byte marker and version from the last 8 bytes of the firmware blob (fw->data[fw_size - 8] and [fw_size - 4]). If the firmware file is shorter than 8 bytes, fw_size - 8 underflows and the access reads out of bounds. Validate the firmware size before indexing.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/6f6a5b0b0a84c2de0…
https://git.kernel.org/stable/c/8eca0f85eeb0789be…
https://git.kernel.org/stable/c/ffc27411ea60b8a09…
https://git.kernel.org/stable/c/5626785b0e4665326…
https://git.kernel.org/stable/c/3e03f1209c1c8a45a…
https://git.kernel.org/stable/c/342632a4d8ba3fafc…
https://git.kernel.org/stable/c/7d221859ba45d7228…
https://git.kernel.org/stable/c/330f2936ab768c721…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 14d962602c8bf86e63c9b9272be1f0360d0a448a , < 6f6a5b0b0a84c2de0e152f2841e57bc226db924f (git) Affected: 14d962602c8bf86e63c9b9272be1f0360d0a448a , < 8eca0f85eeb0789be40e637bcf9a21c4265b6c6f (git) Affected: 14d962602c8bf86e63c9b9272be1f0360d0a448a , < ffc27411ea60b8a09f1fea3d664b65210fdeb454 (git) Affected: 14d962602c8bf86e63c9b9272be1f0360d0a448a , < 5626785b0e4665326e4d96736c106161da09b2f0 (git) Affected: 14d962602c8bf86e63c9b9272be1f0360d0a448a , < 3e03f1209c1c8a45a7bc559f4ecd79d9b33f706d (git) Affected: 14d962602c8bf86e63c9b9272be1f0360d0a448a , < 342632a4d8ba3fafc1556deee0b7a48dd7860336 (git) Affected: 14d962602c8bf86e63c9b9272be1f0360d0a448a , < 7d221859ba45d7228d0138c9a3e55bd3bb31e14e (git) Affected: 14d962602c8bf86e63c9b9272be1f0360d0a448a , < 330f2936ab768c7215322a476f033143e8891d28 (git)
Linux	Linux	Affected: 2.6.28 Unaffected: 0 , < 2.6.28 (semver) Unaffected: 5.10.270 , ≤ 5.10.* (semver) Unaffected: 5.15.221 , ≤ 5.15.* (semver) Unaffected: 6.1.188 , ≤ 6.1.* (semver) Unaffected: 6.6.157 , ≤ 6.6.* (semver) Unaffected: 6.12.110 , ≤ 6.12.* (semver) Unaffected: 6.18.51 , ≤ 6.18.* (semver) Unaffected: 7.2.5 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

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    "datePublished": "2026-09-16T10:31:44.876Z",
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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