Vulnerability-Lookup

GHSA-Q648-4769-6M83

Vulnerability from github – Published: 2026-04-22 15:31 – Updated: 2026-04-27 15:30

Details

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

Bluetooth: MGMT: Fix dangling pointer on mgmt_add_adv_patterns_monitor_complete

This fixes the condition checking so mgmt_pending_valid is executed whenever status != -ECANCELED otherwise calling mgmt_pending_free(cmd) would kfree(cmd) without unlinking it from the list first, leaving a dangling pointer. Any subsequent list traversal (e.g., mgmt_pending_foreach during __mgmt_power_off, or another mgmt_pending_valid call) would dereference freed memory.

Severity ?

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-31511"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-22T14:16:50Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: Fix dangling pointer on mgmt_add_adv_patterns_monitor_complete\n\nThis fixes the condition checking so mgmt_pending_valid is executed\nwhenever status != -ECANCELED otherwise calling mgmt_pending_free(cmd)\nwould kfree(cmd) without unlinking it from the list first, leaving a\ndangling pointer. Any subsequent list traversal (e.g.,\nmgmt_pending_foreach during __mgmt_power_off, or another\nmgmt_pending_valid call) would dereference freed memory.",
  "id": "GHSA-q648-4769-6m83",
  "modified": "2026-04-27T15:30:39Z",
  "published": "2026-04-22T15:31:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31511"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/340666172cf747de58c283d2eef1f335f050538b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3a89c33deffb3cb7877a7ea2e50734cd12b064f2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f5fa4cd35f707344f65ce9e225b6528691dbbaa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bafec9325d4de26b6c49db75b5d5172de652aae0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-31511 (GCVE-0-2026-31511)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:54 – Updated: 2026-04-27 14:03

Title

Bluetooth: MGMT: Fix dangling pointer on mgmt_add_adv_patterns_monitor_complete

Summary

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix dangling pointer on mgmt_add_adv_patterns_monitor_complete This fixes the condition checking so mgmt_pending_valid is executed whenever status != -ECANCELED otherwise calling mgmt_pending_free(cmd) would kfree(cmd) without unlinking it from the list first, leaving a dangling pointer. Any subsequent list traversal (e.g., mgmt_pending_foreach during __mgmt_power_off, or another mgmt_pending_valid call) would dereference freed memory.

Severity ?

7.8 (High)


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

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/340666172cf747de5…
	https://git.kernel.org/stable/c/bafec9325d4de26b6…
	https://git.kernel.org/stable/c/3a89c33deffb3cb78…
	https://git.kernel.org/stable/c/5f5fa4cd35f707344…

Impacted products

Vendor

Product

Version

Linux

Affected: d71b98f253b079cbadc83266383f26fe7e9e103b , < 340666172cf747de58c283d2eef1f335f050538b (git)
Affected: 302a1f674c00dd5581ab8e493ef44767c5101aab , < bafec9325d4de26b6c49db75b5d5172de652aae0 (git)
Affected: 302a1f674c00dd5581ab8e493ef44767c5101aab , < 3a89c33deffb3cb7877a7ea2e50734cd12b064f2 (git)
Affected: 302a1f674c00dd5581ab8e493ef44767c5101aab , < 5f5fa4cd35f707344f65ce9e225b6528691dbbaa (git)
Affected: 87a1f16f07c6c43771754075e08f45b41d237421 (git)

Linux

Affected: 6.17
Unaffected: 0 , < 6.17 (semver)
Unaffected: 6.12.80 , ≤ 6.12.* (semver)
Unaffected: 6.18.21 , ≤ 6.18.* (semver)
Unaffected: 6.19.11 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/mgmt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "340666172cf747de58c283d2eef1f335f050538b",
              "status": "affected",
              "version": "d71b98f253b079cbadc83266383f26fe7e9e103b",
              "versionType": "git"
            },
            {
              "lessThan": "bafec9325d4de26b6c49db75b5d5172de652aae0",
              "status": "affected",
              "version": "302a1f674c00dd5581ab8e493ef44767c5101aab",
              "versionType": "git"
            },
            {
              "lessThan": "3a89c33deffb3cb7877a7ea2e50734cd12b064f2",
              "status": "affected",
              "version": "302a1f674c00dd5581ab8e493ef44767c5101aab",
              "versionType": "git"
            },
            {
              "lessThan": "5f5fa4cd35f707344f65ce9e225b6528691dbbaa",
              "status": "affected",
              "version": "302a1f674c00dd5581ab8e493ef44767c5101aab",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "87a1f16f07c6c43771754075e08f45b41d237421",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/mgmt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.17"
            },
            {
              "lessThan": "6.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.80",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.21",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.11",
              "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": "6.12.80",
                  "versionStartIncluding": "6.12.59",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.21",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.11",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.16.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: Fix dangling pointer on mgmt_add_adv_patterns_monitor_complete\n\nThis fixes the condition checking so mgmt_pending_valid is executed\nwhenever status != -ECANCELED otherwise calling mgmt_pending_free(cmd)\nwould kfree(cmd) without unlinking it from the list first, leaving a\ndangling pointer. Any subsequent list traversal (e.g.,\nmgmt_pending_foreach during __mgmt_power_off, or another\nmgmt_pending_valid call) would dereference freed memory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-27T14:03:47.775Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/340666172cf747de58c283d2eef1f335f050538b"
        },
        {
          "url": "https://git.kernel.org/stable/c/bafec9325d4de26b6c49db75b5d5172de652aae0"
        },
        {
          "url": "https://git.kernel.org/stable/c/3a89c33deffb3cb7877a7ea2e50734cd12b064f2"
        },
        {
          "url": "https://git.kernel.org/stable/c/5f5fa4cd35f707344f65ce9e225b6528691dbbaa"
        }
      ],
      "title": "Bluetooth: MGMT: Fix dangling pointer on mgmt_add_adv_patterns_monitor_complete",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31511",
    "datePublished": "2026-04-22T13:54:29.420Z",
    "dateReserved": "2026-03-09T15:48:24.106Z",
    "dateUpdated": "2026-04-27T14:03:47.775Z",
    "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-Q648-4769-6M83

CVE-2026-31511 (GCVE-0-2026-31511)

Tags

Sightings

Nomenclature