Vulnerability-Lookup

GHSA-QJJP-Q69M-V8XM

Vulnerability from github – Published: 2026-05-26 18:31 – Updated: 2026-05-26 18:31

Details

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

Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_new_connection_cb()

Add the same NULL guard already present in l2cap_sock_resume_cb() and l2cap_sock_ready_cb().

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{
  "affected": [],
  "aliases": [
    "CVE-2026-45835"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-26T17:16:48Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_new_connection_cb()\n\nAdd the same NULL guard already present in\nl2cap_sock_resume_cb() and l2cap_sock_ready_cb().",
  "id": "GHSA-qjjp-q69m-v8xm",
  "modified": "2026-05-26T18:31:46Z",
  "published": "2026-05-26T18:31:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45835"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0a120d96166301d7a95be75b52f843837dbd1219"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/741e6024e31587b0c021b6616a9e428a4ea0b64a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/76083fb80f5a38ac13326b2d810f66bd07771eea"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ab77c8bc30269bee15d917059a66bea48909f5f0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bc3bb9f40da8e53896abc2d29c6d0c6686fe4ab9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-45835 (GCVE-0-2026-45835)

Vulnerability from cvelistv5 – Published: 2026-05-26 16:14 – Updated: 2026-05-26 16:14

Title

Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_new_connection_cb()

Summary

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_new_connection_cb() Add the same NULL guard already present in l2cap_sock_resume_cb() and l2cap_sock_ready_cb().

Severity

No CVSS data available.

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/ab77c8bc30269bee1…
https://git.kernel.org/stable/c/bc3bb9f40da8e5389…
https://git.kernel.org/stable/c/741e6024e31587b0c…
https://git.kernel.org/stable/c/76083fb80f5a38ac1…
https://git.kernel.org/stable/c/0a120d96166301d7a…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 80808e431e1ef25856457de82ce141bed6a6313a , < ab77c8bc30269bee15d917059a66bea48909f5f0 (git) Affected: 80808e431e1ef25856457de82ce141bed6a6313a , < bc3bb9f40da8e53896abc2d29c6d0c6686fe4ab9 (git) Affected: 80808e431e1ef25856457de82ce141bed6a6313a , < 741e6024e31587b0c021b6616a9e428a4ea0b64a (git) Affected: 80808e431e1ef25856457de82ce141bed6a6313a , < 76083fb80f5a38ac13326b2d810f66bd07771eea (git) Affected: 80808e431e1ef25856457de82ce141bed6a6313a , < 0a120d96166301d7a95be75b52f843837dbd1219 (git)
Linux	Linux	Affected: 3.1 Unaffected: 0 , < 3.1 (semver) Unaffected: 6.6.140 , ≤ 6.6.* (semver) Unaffected: 6.12.88 , ≤ 6.12.* (semver) Unaffected: 6.18.30 , ≤ 6.18.* (semver) Unaffected: 7.0.7 , ≤ 7.0.* (semver) Unaffected: 7.1-rc3 , ≤ * (original_commit_for_fix)

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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": [
            {
              "lessThan": "ab77c8bc30269bee15d917059a66bea48909f5f0",
              "status": "affected",
              "version": "80808e431e1ef25856457de82ce141bed6a6313a",
              "versionType": "git"
            },
            {
              "lessThan": "bc3bb9f40da8e53896abc2d29c6d0c6686fe4ab9",
              "status": "affected",
              "version": "80808e431e1ef25856457de82ce141bed6a6313a",
              "versionType": "git"
            },
            {
              "lessThan": "741e6024e31587b0c021b6616a9e428a4ea0b64a",
              "status": "affected",
              "version": "80808e431e1ef25856457de82ce141bed6a6313a",
              "versionType": "git"
            },
            {
              "lessThan": "76083fb80f5a38ac13326b2d810f66bd07771eea",
              "status": "affected",
              "version": "80808e431e1ef25856457de82ce141bed6a6313a",
              "versionType": "git"
            },
            {
              "lessThan": "0a120d96166301d7a95be75b52f843837dbd1219",
              "status": "affected",
              "version": "80808e431e1ef25856457de82ce141bed6a6313a",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "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": "3.1"
            },
            {
              "lessThan": "3.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.88",
              "versionType": "semver"
            },
            {
              "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-rc3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.140",
                  "versionStartIncluding": "3.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.88",
                  "versionStartIncluding": "3.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.30",
                  "versionStartIncluding": "3.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.7",
                  "versionStartIncluding": "3.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1-rc3",
                  "versionStartIncluding": "3.1",
                  "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_new_connection_cb()\n\nAdd the same NULL guard already present in\nl2cap_sock_resume_cb() and l2cap_sock_ready_cb()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-26T16:14:12.195Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ab77c8bc30269bee15d917059a66bea48909f5f0"
        },
        {
          "url": "https://git.kernel.org/stable/c/bc3bb9f40da8e53896abc2d29c6d0c6686fe4ab9"
        },
        {
          "url": "https://git.kernel.org/stable/c/741e6024e31587b0c021b6616a9e428a4ea0b64a"
        },
        {
          "url": "https://git.kernel.org/stable/c/76083fb80f5a38ac13326b2d810f66bd07771eea"
        },
        {
          "url": "https://git.kernel.org/stable/c/0a120d96166301d7a95be75b52f843837dbd1219"
        }
      ],
      "title": "Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_new_connection_cb()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-45835",
    "datePublished": "2026-05-26T16:14:12.195Z",
    "dateReserved": "2026-05-13T15:03:33.077Z",
    "dateUpdated": "2026-05-26T16:14:12.195Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-QJJP-Q69M-V8XM

CVE-2026-45835 (GCVE-0-2026-45835)

Tags

Sightings

Nomenclature