CVE-2024-50044 (GCVE-0-2024-50044)

Vulnerability from cvelistv5 – Published: 2024-10-21 19:39 – Updated: 2026-05-12 12:00
VLAI?
Title
Bluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change rfcomm_sk_state_change attempts to use sock_lock so it must never be called with it locked but rfcomm_sock_ioctl always attempt to lock it causing the following trace: ====================================================== WARNING: possible circular locking dependency detected 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted ------------------------------------------------------ syz-executor386/5093 is trying to acquire lock: ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1671 [inline] ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x5b/0x310 net/bluetooth/rfcomm/sock.c:73 but task is already holding lock: ffff88807badfd28 (&d->lock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x226/0x6a0 net/bluetooth/rfcomm/core.c:491
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 3241ad820dbb172021e0268b5611031991431626 , < b77b3fb12fd483cae7c28648903b1d8a6b275f01 (git)
Affected: 3241ad820dbb172021e0268b5611031991431626 , < 869c6ee62ab8f01bf2419e45326642be5c9b670a (git)
Affected: 3241ad820dbb172021e0268b5611031991431626 , < ef44274dae9b0a90d1a97ce8b242a3b8243a7745 (git)
Affected: 3241ad820dbb172021e0268b5611031991431626 , < 496b2ab0fd10f205e08909a125485fdc98843dbe (git)
Affected: 3241ad820dbb172021e0268b5611031991431626 , < ced98072d3511b232ae1d3347945f35f30c0e303 (git)
Affected: 3241ad820dbb172021e0268b5611031991431626 , < 38b2d5a57d125e1c17661b8308c0240c4a43b534 (git)
Affected: 3241ad820dbb172021e0268b5611031991431626 , < 4cb9807c9b53bf1e5560420d26f319f528b50268 (git)
Affected: 3241ad820dbb172021e0268b5611031991431626 , < 08d1914293dae38350b8088980e59fbc699a72fe (git)
Create a notification for this product.
Linux Linux Affected: 2.6.27
Unaffected: 0 , < 2.6.27 (semver)
Unaffected: 4.19.323 , ≤ 4.19.* (semver)
Unaffected: 5.4.285 , ≤ 5.4.* (semver)
Unaffected: 5.10.227 , ≤ 5.10.* (semver)
Unaffected: 5.15.168 , ≤ 5.15.* (semver)
Unaffected: 6.1.113 , ≤ 6.1.* (semver)
Unaffected: 6.6.57 , ≤ 6.6.* (semver)
Unaffected: 6.11.4 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-50044",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-22T13:24:23.000943Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-22T13:28:43.832Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T22:24:49.785Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "affected": [
          {
            "defaultStatus": "unknown",
            "product": "RUGGEDCOM RST2428P",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SCALANCE XCM-/XRM-/XCH-/XRH-300 family",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-12T12:00:00.581Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
          },
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html"
          }
        ],
        "x_adpType": "supplier"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/rfcomm/sock.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b77b3fb12fd483cae7c28648903b1d8a6b275f01",
              "status": "affected",
              "version": "3241ad820dbb172021e0268b5611031991431626",
              "versionType": "git"
            },
            {
              "lessThan": "869c6ee62ab8f01bf2419e45326642be5c9b670a",
              "status": "affected",
              "version": "3241ad820dbb172021e0268b5611031991431626",
              "versionType": "git"
            },
            {
              "lessThan": "ef44274dae9b0a90d1a97ce8b242a3b8243a7745",
              "status": "affected",
              "version": "3241ad820dbb172021e0268b5611031991431626",
              "versionType": "git"
            },
            {
              "lessThan": "496b2ab0fd10f205e08909a125485fdc98843dbe",
              "status": "affected",
              "version": "3241ad820dbb172021e0268b5611031991431626",
              "versionType": "git"
            },
            {
              "lessThan": "ced98072d3511b232ae1d3347945f35f30c0e303",
              "status": "affected",
              "version": "3241ad820dbb172021e0268b5611031991431626",
              "versionType": "git"
            },
            {
              "lessThan": "38b2d5a57d125e1c17661b8308c0240c4a43b534",
              "status": "affected",
              "version": "3241ad820dbb172021e0268b5611031991431626",
              "versionType": "git"
            },
            {
              "lessThan": "4cb9807c9b53bf1e5560420d26f319f528b50268",
              "status": "affected",
              "version": "3241ad820dbb172021e0268b5611031991431626",
              "versionType": "git"
            },
            {
              "lessThan": "08d1914293dae38350b8088980e59fbc699a72fe",
              "status": "affected",
              "version": "3241ad820dbb172021e0268b5611031991431626",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/rfcomm/sock.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.27"
            },
            {
              "lessThan": "2.6.27",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.323",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.285",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.227",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.168",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.113",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.57",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.323",
                  "versionStartIncluding": "2.6.27",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.285",
                  "versionStartIncluding": "2.6.27",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.227",
                  "versionStartIncluding": "2.6.27",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.168",
                  "versionStartIncluding": "2.6.27",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.113",
                  "versionStartIncluding": "2.6.27",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.57",
                  "versionStartIncluding": "2.6.27",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11.4",
                  "versionStartIncluding": "2.6.27",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12",
                  "versionStartIncluding": "2.6.27",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change\n\nrfcomm_sk_state_change attempts to use sock_lock so it must never be\ncalled with it locked but rfcomm_sock_ioctl always attempt to lock it\ncausing the following trace:\n\n======================================================\nWARNING: possible circular locking dependency detected\n6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted\n------------------------------------------------------\nsyz-executor386/5093 is trying to acquire lock:\nffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1671 [inline]\nffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x5b/0x310 net/bluetooth/rfcomm/sock.c:73\n\nbut task is already holding lock:\nffff88807badfd28 (\u0026d-\u003elock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x226/0x6a0 net/bluetooth/rfcomm/core.c:491"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T20:44:24.572Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b77b3fb12fd483cae7c28648903b1d8a6b275f01"
        },
        {
          "url": "https://git.kernel.org/stable/c/869c6ee62ab8f01bf2419e45326642be5c9b670a"
        },
        {
          "url": "https://git.kernel.org/stable/c/ef44274dae9b0a90d1a97ce8b242a3b8243a7745"
        },
        {
          "url": "https://git.kernel.org/stable/c/496b2ab0fd10f205e08909a125485fdc98843dbe"
        },
        {
          "url": "https://git.kernel.org/stable/c/ced98072d3511b232ae1d3347945f35f30c0e303"
        },
        {
          "url": "https://git.kernel.org/stable/c/38b2d5a57d125e1c17661b8308c0240c4a43b534"
        },
        {
          "url": "https://git.kernel.org/stable/c/4cb9807c9b53bf1e5560420d26f319f528b50268"
        },
        {
          "url": "https://git.kernel.org/stable/c/08d1914293dae38350b8088980e59fbc699a72fe"
        }
      ],
      "title": "Bluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50044",
    "datePublished": "2024-10-21T19:39:42.430Z",
    "dateReserved": "2024-10-21T12:17:06.071Z",
    "dateUpdated": "2026-05-12T12:00:00.581Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-50044",
      "date": "2026-05-21",
      "epss": "0.0001",
      "percentile": "0.0109"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"2.6.27\", \"versionEndExcluding\": \"5.10.227\", \"matchCriteriaId\": \"F57D1442-15E5-4DEF-B815-CC318D489E35\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.11\", \"versionEndExcluding\": \"5.15.168\", \"matchCriteriaId\": \"4D51C05D-455B-4D8D-89E7-A58E140B864C\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.16\", \"versionEndExcluding\": \"6.1.113\", \"matchCriteriaId\": \"D01BD22E-ACD1-4618-9D01-6116570BE1EE\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.2\", \"versionEndExcluding\": \"6.6.57\", \"matchCriteriaId\": \"05D83DB8-7465-4F88-AFB2-980011992AC1\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.7\", \"versionEndExcluding\": \"6.11.4\", \"matchCriteriaId\": \"AA84D336-CE9A-4535-B901-1AD77EC17C34\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*\", \"matchCriteriaId\": \"7F361E1D-580F-4A2D-A509-7615F73167A1\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*\", \"matchCriteriaId\": \"925478D0-3E3D-4E6F-ACD5-09F28D5DF82C\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change\\n\\nrfcomm_sk_state_change attempts to use sock_lock so it must never be\\ncalled with it locked but rfcomm_sock_ioctl always attempt to lock it\\ncausing the following trace:\\n\\n======================================================\\nWARNING: possible circular locking dependency detected\\n6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted\\n------------------------------------------------------\\nsyz-executor386/5093 is trying to acquire lock:\\nffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1671 [inline]\\nffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x5b/0x310 net/bluetooth/rfcomm/sock.c:73\\n\\nbut task is already holding lock:\\nffff88807badfd28 (\u0026d-\u003elock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x226/0x6a0 net/bluetooth/rfcomm/core.c:491\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: RFCOMM: CORREGIR posible bloqueo en rfcomm_sk_state_change rfcomm_sk_state_change intenta usar sock_lock, por lo que nunca se debe llamar con \\u00e9l bloqueado, pero rfcomm_sock_ioctl siempre intenta bloquearlo, lo que provoca el siguiente rastro: ======================================================= ADVERTENCIA: se ha detectado una posible dependencia de bloqueo circular 6.8.0-syzkaller-08951-gfe46a7dd189e #0 No contaminado ------------------------------------------------------ syz-executor386/5093 est\\u00e1 intentando adquirir el bloqueo: ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, en: lock_sock include/net/sock.h:1671 [en l\\u00ednea] ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, en: rfcomm_sk_state_change+0x5b/0x310 net/bluetooth/rfcomm/sock.c:73 pero la tarea ya tiene el bloqueo: ffff88807badfd28 (\u0026amp;d-\u0026gt;lock){+.+.}-{3:3}, en: __rfcomm_dlc_close+0x226/0x6a0 net/bluetooth/rfcomm/core.c:491\"}]",
      "id": "CVE-2024-50044",
      "lastModified": "2024-11-08T16:15:44.520",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L\", \"baseScore\": 3.3, \"baseSeverity\": \"LOW\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"LOW\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 1.4}]}",
      "published": "2024-10-21T20:15:17.313",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/08d1914293dae38350b8088980e59fbc699a72fe\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/38b2d5a57d125e1c17661b8308c0240c4a43b534\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/496b2ab0fd10f205e08909a125485fdc98843dbe\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/4cb9807c9b53bf1e5560420d26f319f528b50268\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/869c6ee62ab8f01bf2419e45326642be5c9b670a\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/b77b3fb12fd483cae7c28648903b1d8a6b275f01\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/ced98072d3511b232ae1d3347945f35f30c0e303\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/ef44274dae9b0a90d1a97ce8b242a3b8243a7745\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-667\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-50044\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-10-21T20:15:17.313\",\"lastModified\":\"2026-05-12T13:16:16.517\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change\\n\\nrfcomm_sk_state_change attempts to use sock_lock so it must never be\\ncalled with it locked but rfcomm_sock_ioctl always attempt to lock it\\ncausing the following trace:\\n\\n======================================================\\nWARNING: possible circular locking dependency detected\\n6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted\\n------------------------------------------------------\\nsyz-executor386/5093 is trying to acquire lock:\\nffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1671 [inline]\\nffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x5b/0x310 net/bluetooth/rfcomm/sock.c:73\\n\\nbut task is already holding lock:\\nffff88807badfd28 (\u0026d-\u003elock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x226/0x6a0 net/bluetooth/rfcomm/core.c:491\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: RFCOMM: CORREGIR posible bloqueo en rfcomm_sk_state_change rfcomm_sk_state_change intenta usar sock_lock, por lo que nunca se debe llamar con \u00e9l bloqueado, pero rfcomm_sock_ioctl siempre intenta bloquearlo, lo que provoca el siguiente rastro: ======================================================= ADVERTENCIA: se ha detectado una posible dependencia de bloqueo circular 6.8.0-syzkaller-08951-gfe46a7dd189e #0 No contaminado ------------------------------------------------------ syz-executor386/5093 est\u00e1 intentando adquirir el bloqueo: ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, en: lock_sock include/net/sock.h:1671 [en l\u00ednea] ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, en: rfcomm_sk_state_change+0x5b/0x310 net/bluetooth/rfcomm/sock.c:73 pero la tarea ya tiene el bloqueo: ffff88807badfd28 (\u0026amp;d-\u0026gt;lock){+.+.}-{3:3}, en: __rfcomm_dlc_close+0x226/0x6a0 net/bluetooth/rfcomm/core.c:491\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L\",\"baseScore\":3.3,\"baseSeverity\":\"LOW\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":1.8,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-667\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.6.27\",\"versionEndExcluding\":\"5.10.227\",\"matchCriteriaId\":\"F57D1442-15E5-4DEF-B815-CC318D489E35\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.168\",\"matchCriteriaId\":\"4D51C05D-455B-4D8D-89E7-A58E140B864C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.113\",\"matchCriteriaId\":\"D01BD22E-ACD1-4618-9D01-6116570BE1EE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.57\",\"matchCriteriaId\":\"05D83DB8-7465-4F88-AFB2-980011992AC1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.11.4\",\"matchCriteriaId\":\"AA84D336-CE9A-4535-B901-1AD77EC17C34\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"7F361E1D-580F-4A2D-A509-7615F73167A1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"925478D0-3E3D-4E6F-ACD5-09F28D5DF82C\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/08d1914293dae38350b8088980e59fbc699a72fe\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/38b2d5a57d125e1c17661b8308c0240c4a43b534\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/496b2ab0fd10f205e08909a125485fdc98843dbe\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4cb9807c9b53bf1e5560420d26f319f528b50268\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/869c6ee62ab8f01bf2419e45326642be5c9b670a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b77b3fb12fd483cae7c28648903b1d8a6b275f01\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ced98072d3511b232ae1d3347945f35f30c0e303\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ef44274dae9b0a90d1a97ce8b242a3b8243a7745\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://cert-portal.siemens.com/productcert/html/ssa-265688.html\",\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\"},{\"url\":\"https://cert-portal.siemens.com/productcert/html/ssa-355557.html\",\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T22:24:49.785Z\"}}, {\"affected\": [{\"vendor\": \"Siemens\", \"product\": \"RUGGEDCOM RST2428P\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"*\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"*\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SCALANCE XCM-/XRM-/XCH-/XRH-300 family\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"*\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"*\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}], \"x_adpType\": \"supplier\", \"references\": [{\"url\": \"https://cert-portal.siemens.com/productcert/html/ssa-265688.html\"}, {\"url\": \"https://cert-portal.siemens.com/productcert/html/ssa-355557.html\"}], \"providerMetadata\": {\"orgId\": \"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\", \"shortName\": \"siemens-SADP\", \"dateUpdated\": \"2026-05-12T12:00:00.581Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-50044\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-22T13:24:23.000943Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-22T13:24:26.102Z\"}}], \"cna\": {\"title\": \"Bluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3241ad820dbb172021e0268b5611031991431626\", \"lessThan\": \"b77b3fb12fd483cae7c28648903b1d8a6b275f01\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3241ad820dbb172021e0268b5611031991431626\", \"lessThan\": \"869c6ee62ab8f01bf2419e45326642be5c9b670a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3241ad820dbb172021e0268b5611031991431626\", \"lessThan\": \"ef44274dae9b0a90d1a97ce8b242a3b8243a7745\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3241ad820dbb172021e0268b5611031991431626\", \"lessThan\": \"496b2ab0fd10f205e08909a125485fdc98843dbe\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3241ad820dbb172021e0268b5611031991431626\", \"lessThan\": \"ced98072d3511b232ae1d3347945f35f30c0e303\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3241ad820dbb172021e0268b5611031991431626\", \"lessThan\": \"38b2d5a57d125e1c17661b8308c0240c4a43b534\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3241ad820dbb172021e0268b5611031991431626\", \"lessThan\": \"4cb9807c9b53bf1e5560420d26f319f528b50268\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3241ad820dbb172021e0268b5611031991431626\", \"lessThan\": \"08d1914293dae38350b8088980e59fbc699a72fe\", \"versionType\": \"git\"}], \"programFiles\": [\"net/bluetooth/rfcomm/sock.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.27\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.27\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.323\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.285\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.227\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.168\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.113\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.57\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/bluetooth/rfcomm/sock.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/b77b3fb12fd483cae7c28648903b1d8a6b275f01\"}, {\"url\": \"https://git.kernel.org/stable/c/869c6ee62ab8f01bf2419e45326642be5c9b670a\"}, {\"url\": \"https://git.kernel.org/stable/c/ef44274dae9b0a90d1a97ce8b242a3b8243a7745\"}, {\"url\": \"https://git.kernel.org/stable/c/496b2ab0fd10f205e08909a125485fdc98843dbe\"}, {\"url\": \"https://git.kernel.org/stable/c/ced98072d3511b232ae1d3347945f35f30c0e303\"}, {\"url\": \"https://git.kernel.org/stable/c/38b2d5a57d125e1c17661b8308c0240c4a43b534\"}, {\"url\": \"https://git.kernel.org/stable/c/4cb9807c9b53bf1e5560420d26f319f528b50268\"}, {\"url\": \"https://git.kernel.org/stable/c/08d1914293dae38350b8088980e59fbc699a72fe\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change\\n\\nrfcomm_sk_state_change attempts to use sock_lock so it must never be\\ncalled with it locked but rfcomm_sock_ioctl always attempt to lock it\\ncausing the following trace:\\n\\n======================================================\\nWARNING: possible circular locking dependency detected\\n6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted\\n------------------------------------------------------\\nsyz-executor386/5093 is trying to acquire lock:\\nffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1671 [inline]\\nffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x5b/0x310 net/bluetooth/rfcomm/sock.c:73\\n\\nbut task is already holding lock:\\nffff88807badfd28 (\u0026d-\u003elock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x226/0x6a0 net/bluetooth/rfcomm/core.c:491\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.323\", \"versionStartIncluding\": \"2.6.27\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.285\", \"versionStartIncluding\": \"2.6.27\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.227\", \"versionStartIncluding\": \"2.6.27\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.168\", \"versionStartIncluding\": \"2.6.27\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.113\", \"versionStartIncluding\": \"2.6.27\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.57\", \"versionStartIncluding\": \"2.6.27\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.4\", \"versionStartIncluding\": \"2.6.27\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"2.6.27\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:44:24.572Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-50044\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-12T12:00:00.581Z\", \"dateReserved\": \"2024-10-21T12:17:06.071Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T19:39:42.430Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.