CVE-2026-45836 (GCVE-0-2026-45836)
Vulnerability from cvelistv5
Published
2026-05-26 16:14
Modified
2026-06-14 17:45
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_get_sndtimeo_cb() Add the same NULL guard already present in l2cap_sock_resume_cb() and l2cap_sock_ready_cb().
Impacted products
Vendor Product Version
Linux Linux Version: 8d836d71e2223b8961b21112bb4ce89ef8231682
Version: 8d836d71e2223b8961b21112bb4ce89ef8231682
Version: 8d836d71e2223b8961b21112bb4ce89ef8231682
Version: 8d836d71e2223b8961b21112bb4ce89ef8231682
Version: 8d836d71e2223b8961b21112bb4ce89ef8231682
Version: 8d836d71e2223b8961b21112bb4ce89ef8231682
Version: 8d836d71e2223b8961b21112bb4ce89ef8231682
Version: 8d836d71e2223b8961b21112bb4ce89ef8231682
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/l2cap_sock.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "versionType": "git"
            },
            {
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            },
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        {
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          "product": "Linux",
          "programFiles": [
            "net/bluetooth/l2cap_sock.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.13"
            },
            {
              "lessThan": "3.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.258",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.90",
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            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.30",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.258",
                  "versionStartIncluding": "3.13",
                  "vulnerable": true
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.209",
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                  "vulnerable": true
                },
                {
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                  "vulnerable": true
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                {
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                {
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                {
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                {
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                },
                {
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                  "versionEndExcluding": "7.1",
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_get_sndtimeo_cb()\n\nAdd the same NULL guard already present in\nl2cap_sock_resume_cb() and l2cap_sock_ready_cb()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-14T17:45:57.724Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fd072f833147b0bc10c43a454624cb99d02f3fc7"
        },
        {
          "url": "https://git.kernel.org/stable/c/6e8d1a2a677a81caa60cf0aabd4217bd585fbba1"
        },
        {
          "url": "https://git.kernel.org/stable/c/e1863e7480feddb90125d0dd5a1b572972d75908"
        },
        {
          "url": "https://git.kernel.org/stable/c/cf1fd517f892ded88168df878f834b625133f86d"
        },
        {
          "url": "https://git.kernel.org/stable/c/58dc5e3d8768e121907608e6e196a908512fb083"
        },
        {
          "url": "https://git.kernel.org/stable/c/32bd343803d4ba47cc516f9d5f037f01b855d767"
        },
        {
          "url": "https://git.kernel.org/stable/c/a93d66907dd4d29b65c9797a93784bf61906d6d6"
        },
        {
          "url": "https://git.kernel.org/stable/c/78a88d43dab8d23aeef934ed8ce34d40e6b3d613"
        }
      ],
      "title": "Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_get_sndtimeo_cb()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-45836",
    "datePublished": "2026-05-26T16:14:13.568Z",
    "dateReserved": "2026-05-13T15:03:33.077Z",
    "dateUpdated": "2026-06-14T17:45:57.724Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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