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GHSA-QGVR-5R26-M585

Vulnerability from github – Published: 2026-05-01 15:30 – Updated: 2026-05-08 15:31

Details

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

Bluetooth: hci_sync: hci_cmd_sync_queue_once() return -EEXIST if exists

hci_cmd_sync_queue_once() needs to indicate whether a queue item was added, so caller can know if callbacks are called, so it can avoid leaking resources.

Change the function to return -EEXIST if queue item already exists.

Modify all callsites to handle that.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-43022"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-01T15:16:46Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: hci_cmd_sync_queue_once() return -EEXIST if exists\n\nhci_cmd_sync_queue_once() needs to indicate whether a queue item was\nadded, so caller can know if callbacks are called, so it can avoid\nleaking resources.\n\nChange the function to return -EEXIST if queue item already exists.\n\nModify all callsites to handle that.",
  "id": "GHSA-qgvr-5r26-m585",
  "modified": "2026-05-08T15:31:15Z",
  "published": "2026-05-01T15:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43022"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0ad2ce230b38cd4b3f6732cc609e270461e626e5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2969554bcfccb5c609f6b6cd4a014933f3a66dd0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-43022 (GCVE-0-2026-43022)

Vulnerability from cvelistv5 – Published: 2026-05-01 14:15 – Updated: 2026-05-23 16:06

Title

Bluetooth: hci_sync: hci_cmd_sync_queue_once() return -EEXIST if exists

Summary

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: hci_cmd_sync_queue_once() return -EEXIST if exists hci_cmd_sync_queue_once() needs to indicate whether a queue item was added, so caller can know if callbacks are called, so it can avoid leaking resources. Change the function to return -EEXIST if queue item already exists. Modify all callsites to handle that.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/0ad2ce230b38cd4b3…
https://git.kernel.org/stable/c/2969554bcfccb5c60…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 505ea2b295929e7be2b4e1bc86ee31cb7862fb01 , < 0ad2ce230b38cd4b3f6732cc609e270461e626e5 (git) Affected: 505ea2b295929e7be2b4e1bc86ee31cb7862fb01 , < 2969554bcfccb5c609f6b6cd4a014933f3a66dd0 (git) Affected: f00f36db76eb8fd10d13e80e2590f23b5beaa54d (git) Affected: 1499f79995c7ee58e3bfeeff75f6d1b37dcda881 (git) Affected: 357603f4d396d85fbf0045512efaf1d7f7394ed7 (git) Affected: 6.1.120 , < 6.2 (semver) Affected: 6.6.51 , < 6.7 (semver) Affected: 6.8.9 , < 6.9 (semver)
Linux	Linux	Affected: 6.9 Unaffected: 0 , < 6.9 (semver) Unaffected: 6.19.12 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/hci_sync.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "0ad2ce230b38cd4b3f6732cc609e270461e626e5",
              "status": "affected",
              "version": "505ea2b295929e7be2b4e1bc86ee31cb7862fb01",
              "versionType": "git"
            },
            {
              "lessThan": "2969554bcfccb5c609f6b6cd4a014933f3a66dd0",
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              "version": "505ea2b295929e7be2b4e1bc86ee31cb7862fb01",
              "versionType": "git"
            },
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              "version": "f00f36db76eb8fd10d13e80e2590f23b5beaa54d",
              "versionType": "git"
            },
            {
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              "version": "1499f79995c7ee58e3bfeeff75f6d1b37dcda881",
              "versionType": "git"
            },
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              "status": "affected",
              "version": "357603f4d396d85fbf0045512efaf1d7f7394ed7",
              "versionType": "git"
            },
            {
              "lessThan": "6.2",
              "status": "affected",
              "version": "6.1.120",
              "versionType": "semver"
            },
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              "status": "affected",
              "version": "6.6.51",
              "versionType": "semver"
            },
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              "status": "affected",
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              "versionType": "semver"
            }
          ]
        },
        {
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          "product": "Linux",
          "programFiles": [
            "net/bluetooth/hci_sync.c"
          ],
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          "versions": [
            {
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              "version": "6.9"
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.19.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.12",
                  "versionStartIncluding": "6.9",
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                  "versionStartIncluding": "6.6.51",
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              "operator": "OR"
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T16:06:00.475Z",
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    "datePublished": "2026-05-01T14:15:25.059Z",
    "dateReserved": "2026-05-01T14:12:55.975Z",
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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-QGVR-5R26-M585

CVE-2026-43022 (GCVE-0-2026-43022)

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