CVE-2026-43022 (GCVE-0-2026-43022)
Vulnerability from cvelistv5
Published
2026-05-01 14:15
Modified
2026-05-23 16:06
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 505ea2b295929e7be2b4e1bc86ee31cb7862fb01
Version: 505ea2b295929e7be2b4e1bc86ee31cb7862fb01
Version: f00f36db76eb8fd10d13e80e2590f23b5beaa54d
Version: 1499f79995c7ee58e3bfeeff75f6d1b37dcda881
Version: 357603f4d396d85fbf0045512efaf1d7f7394ed7
Version: 6.1.120   ≤
Version: 6.6.51   ≤
Version: 6.8.9   ≤
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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": [
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              "lessThan": "0ad2ce230b38cd4b3f6732cc609e270461e626e5",
              "status": "affected",
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              "version": "1499f79995c7ee58e3bfeeff75f6d1b37dcda881",
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              "versionType": "git"
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              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "version": "6.9"
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              "version": "0",
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            {
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              "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",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
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                  "vulnerable": true
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                  "versionStartIncluding": "6.6.51",
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                {
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                  "versionStartIncluding": "6.8.9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T16:06:00.475Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0ad2ce230b38cd4b3f6732cc609e270461e626e5"
        },
        {
          "url": "https://git.kernel.org/stable/c/2969554bcfccb5c609f6b6cd4a014933f3a66dd0"
        }
      ],
      "title": "Bluetooth: hci_sync: hci_cmd_sync_queue_once() return -EEXIST if exists",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43022",
    "datePublished": "2026-05-01T14:15:25.059Z",
    "dateReserved": "2026-05-01T14:12:55.975Z",
    "dateUpdated": "2026-05-23T16:06:00.475Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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