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GHSA-8W6G-QCCJ-392R

Vulnerability from github – Published: 2026-09-24 18:31 – Updated: 2026-09-24 18:31

Details

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

wifi: iwlwifi: acpi: validate WGDS table revision index

Check tbl_rev bounds before BIT(tbl_rev) to avoid undefined shifts when firmware reports an invalid revision value.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-93788"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-24T17:17:11Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: acpi: validate WGDS table revision index\n\nCheck tbl_rev bounds before BIT(tbl_rev) to avoid undefined shifts when\nfirmware reports an invalid revision value.",
  "id": "GHSA-8w6g-qccj-392r",
  "modified": "2026-09-24T18:31:28Z",
  "published": "2026-09-24T18:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93788"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2fc98ab6fe8acabd13eb09dc17426a33cf9f27f7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/346a558491241cbe8fef82b3d8f62d1a6b6bf61f"
    },
    {
      "type": "WEB",
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}

CVE-2026-93788 (GCVE-0-2026-93788)

Vulnerability from cvelistv5 – Published: 2026-09-24 16:02 – Updated: 2026-09-25 12:42

Title

wifi: iwlwifi: acpi: validate WGDS table revision index

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: acpi: validate WGDS table revision index Check tbl_rev bounds before BIT(tbl_rev) to avoid undefined shifts when firmware reports an invalid revision value.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/2fc98ab6fe8acabd1…
https://git.kernel.org/stable/c/346a558491241cbe8…
https://git.kernel.org/stable/c/954e821f42aaca560…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 97f8a3d1610b1f50013de1e632b007cbfd7459d8 , < 2fc98ab6fe8acabd13eb09dc17426a33cf9f27f7 (git) Affected: 97f8a3d1610b1f50013de1e632b007cbfd7459d8 , < 346a558491241cbe8fef82b3d8f62d1a6b6bf61f (git) Affected: 97f8a3d1610b1f50013de1e632b007cbfd7459d8 , < 954e821f42aaca56073ca830c5fd4bcf1a89048c (git)
Linux	Linux	Affected: 5.16 Unaffected: 0 , < 5.16 (semver) Unaffected: 6.12.111 , ≤ 6.12.* (semver) Unaffected: 6.18.53 , ≤ 6.18.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/intel/iwlwifi/fw/acpi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2fc98ab6fe8acabd13eb09dc17426a33cf9f27f7",
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              "version": "97f8a3d1610b1f50013de1e632b007cbfd7459d8",
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            },
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              "status": "affected",
              "version": "97f8a3d1610b1f50013de1e632b007cbfd7459d8",
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          "vendor": "Linux",
          "versions": [
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              "version": "5.16"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.12.*",
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            },
            {
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              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                },
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                }
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      ],
      "providerMetadata": {
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          "url": "https://git.kernel.org/stable/c/954e821f42aaca56073ca830c5fd4bcf1a89048c"
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    "datePublished": "2026-09-24T16:02:21.751Z",
    "dateReserved": "2026-09-18T17:59:28.788Z",
    "dateUpdated": "2026-09-25T12:42:54.063Z",
    "state": "PUBLISHED"
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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.

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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GHSA-8W6G-QCCJ-392R

CVE-2026-93788 (GCVE-0-2026-93788)

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