GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2022-50374 (GCVE-0-2022-50374)

Vulnerability from cvelistv5 – Published: 2025-09-17 14:56 – Updated: 2026-05-23 15:24
VLAI
Title
Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure syzbot is reporting NULL pointer dereference at hci_uart_tty_close() [1], for rcu_sync_enter() is called without rcu_sync_init() due to hci_uart_tty_open() ignoring percpu_init_rwsem() failure. While we are at it, fix that hci_uart_register_device() ignores percpu_init_rwsem() failure and hci_uart_unregister_device() does not call percpu_free_rwsem().
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 18:37 UTC
CWE
  • CWE-908 - Use of Uninitialized Resource
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2 , < d7cc0d51ffcbfd1caaa809fcf9cff05c46d0fb4d (git)
Affected: 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2 , < b8917dce2134739b39bc0a5648b18427f2cad569 (git)
Affected: 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2 , < 75b2c71ea581c7bb1303860d89366a42ad0506d2 (git)
Affected: 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2 , < 98ce10f3f345e61fc6c83bff9cd11cda252b05ac (git)
Affected: 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2 , < 3124d320c22f3f4388d9ac5c8f37eaad0cefd6b1 (git)
Affected: f6ec33f6bd3723a8146768106434ef6ab3d9d990 (git)
Affected: 4a53c4e84ace1bc75157a7281af3fe8f5b19d08c (git)
Affected: 4.14.63 , < 4.15 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 5.10.150 , ≤ 5.10.* (semver)
Unaffected: 5.15.75 , ≤ 5.15.* (semver)
Unaffected: 5.19.17 , ≤ 5.19.* (semver)
Unaffected: 6.0.3 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-50374",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-14T18:37:06.228952Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-908",
                "description": "CWE-908 Use of Uninitialized Resource",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-14T18:43:00.681Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/bluetooth/hci_ldisc.c",
            "drivers/bluetooth/hci_serdev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d7cc0d51ffcbfd1caaa809fcf9cff05c46d0fb4d",
              "status": "affected",
              "version": "67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2",
              "versionType": "git"
            },
            {
              "lessThan": "b8917dce2134739b39bc0a5648b18427f2cad569",
              "status": "affected",
              "version": "67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2",
              "versionType": "git"
            },
            {
              "lessThan": "75b2c71ea581c7bb1303860d89366a42ad0506d2",
              "status": "affected",
              "version": "67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2",
              "versionType": "git"
            },
            {
              "lessThan": "98ce10f3f345e61fc6c83bff9cd11cda252b05ac",
              "status": "affected",
              "version": "67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2",
              "versionType": "git"
            },
            {
              "lessThan": "3124d320c22f3f4388d9ac5c8f37eaad0cefd6b1",
              "status": "affected",
              "version": "67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f6ec33f6bd3723a8146768106434ef6ab3d9d990",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4a53c4e84ace1bc75157a7281af3fe8f5b19d08c",
              "versionType": "git"
            },
            {
              "lessThan": "4.15",
              "status": "affected",
              "version": "4.14.63",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/bluetooth/hci_ldisc.c",
            "drivers/bluetooth/hci_serdev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "lessThan": "4.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.150",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.150",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.75",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.17",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.3",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.14.63",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.14.63",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure\n\nsyzbot is reporting NULL pointer dereference at hci_uart_tty_close() [1],\nfor rcu_sync_enter() is called without rcu_sync_init() due to\nhci_uart_tty_open() ignoring percpu_init_rwsem() failure.\n\nWhile we are at it, fix that hci_uart_register_device() ignores\npercpu_init_rwsem() failure and hci_uart_unregister_device() does not\ncall percpu_free_rwsem()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:24:21.970Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d7cc0d51ffcbfd1caaa809fcf9cff05c46d0fb4d"
        },
        {
          "url": "https://git.kernel.org/stable/c/b8917dce2134739b39bc0a5648b18427f2cad569"
        },
        {
          "url": "https://git.kernel.org/stable/c/75b2c71ea581c7bb1303860d89366a42ad0506d2"
        },
        {
          "url": "https://git.kernel.org/stable/c/98ce10f3f345e61fc6c83bff9cd11cda252b05ac"
        },
        {
          "url": "https://git.kernel.org/stable/c/3124d320c22f3f4388d9ac5c8f37eaad0cefd6b1"
        }
      ],
      "title": "Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50374",
    "datePublished": "2025-09-17T14:56:28.974Z",
    "dateReserved": "2025-09-17T14:53:06.996Z",
    "dateUpdated": "2026-05-23T15:24:21.970Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-50374",
      "date": "2026-09-14",
      "epss": "0.00203",
      "percentile": "0.10353"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50374\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-17T15:15:36.427\",\"lastModified\":\"2026-06-17T05:23:22.140\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure\\n\\nsyzbot is reporting NULL pointer dereference at hci_uart_tty_close() [1],\\nfor rcu_sync_enter() is called without rcu_sync_init() due to\\nhci_uart_tty_open() ignoring percpu_init_rwsem() failure.\\n\\nWhile we are at it, fix that hci_uart_register_device() ignores\\npercpu_init_rwsem() failure and hci_uart_unregister_device() does not\\ncall percpu_free_rwsem().\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/bluetooth/hci_ldisc.c\",\"drivers/bluetooth/hci_serdev.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2\",\"lessThan\":\"d7cc0d51ffcbfd1caaa809fcf9cff05c46d0fb4d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2\",\"lessThan\":\"b8917dce2134739b39bc0a5648b18427f2cad569\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2\",\"lessThan\":\"75b2c71ea581c7bb1303860d89366a42ad0506d2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2\",\"lessThan\":\"98ce10f3f345e61fc6c83bff9cd11cda252b05ac\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2\",\"lessThan\":\"3124d320c22f3f4388d9ac5c8f37eaad0cefd6b1\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f6ec33f6bd3723a8146768106434ef6ab3d9d990\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4a53c4e84ace1bc75157a7281af3fe8f5b19d08c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4.14.63\",\"lessThan\":\"4.15\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/bluetooth/hci_ldisc.c\",\"drivers/bluetooth/hci_serdev.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.15\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.15\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.150\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.75\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.19.17\",\"lessThanOrEqual\":\"5.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.0.3\",\"lessThanOrEqual\":\"6.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"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:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-01-14T18:37:06.228952Z\",\"id\":\"CVE-2022-50374\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-908\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-908\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.14.63\",\"versionEndExcluding\":\"4.15\",\"matchCriteriaId\":\"7574F77B-7A94-4A7C-92CC-EC4115FAF7EF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.14.63\",\"versionEndExcluding\":\"5.10.150\",\"matchCriteriaId\":\"CB07E912-4911-4499-83D8-504096099CAA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.75\",\"matchCriteriaId\":\"6D945F46-F32F-4C09-8400-C3477E22A9FB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.19.17\",\"matchCriteriaId\":\"19B4C3A4-E5C3-41DC-BB14-BE72858E7D35\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.0\",\"versionEndExcluding\":\"6.0.3\",\"matchCriteriaId\":\"5BCD8201-B847-4442-B894-70D430128DEF\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3124d320c22f3f4388d9ac5c8f37eaad0cefd6b1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/75b2c71ea581c7bb1303860d89366a42ad0506d2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/98ce10f3f345e61fc6c83bff9cd11cda252b05ac\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b8917dce2134739b39bc0a5648b18427f2cad569\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d7cc0d51ffcbfd1caaa809fcf9cff05c46d0fb4d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T21:48:55+00:00",
      "cve": "CVE-2022-50374",
      "id": "CVE-2022-50374",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "279",
      "product_status:known_affected": "84",
      "product_status:known_not_affected": "104",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50374.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-02T02:00:44Z",
      "cve": "CVE-2022-50374",
      "id": "CVE-2022-50374",
      "initial_release_date": "2025-09-17T23:30:44Z",
      "product_status:known_affected": "413",
      "product_status:known_not_affected": "326",
      "product_status:recommended": "235",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-50374",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-50374.json",
      "version": "32"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-50374\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-14T18:37:06.228952Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-908\", \"description\": \"CWE-908 Use of Uninitialized Resource\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-14T18:37:00.219Z\"}}], \"cna\": {\"title\": \"Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2\", \"lessThan\": \"d7cc0d51ffcbfd1caaa809fcf9cff05c46d0fb4d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2\", \"lessThan\": \"b8917dce2134739b39bc0a5648b18427f2cad569\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2\", \"lessThan\": \"75b2c71ea581c7bb1303860d89366a42ad0506d2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2\", \"lessThan\": \"98ce10f3f345e61fc6c83bff9cd11cda252b05ac\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2\", \"lessThan\": \"3124d320c22f3f4388d9ac5c8f37eaad0cefd6b1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f6ec33f6bd3723a8146768106434ef6ab3d9d990\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4a53c4e84ace1bc75157a7281af3fe8f5b19d08c\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/bluetooth/hci_ldisc.c\", \"drivers/bluetooth/hci_serdev.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.15\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.15\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.150\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.75\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.19.17\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.19.*\"}, {\"status\": \"unaffected\", \"version\": \"6.0.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.0.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/bluetooth/hci_ldisc.c\", \"drivers/bluetooth/hci_serdev.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/d7cc0d51ffcbfd1caaa809fcf9cff05c46d0fb4d\"}, {\"url\": \"https://git.kernel.org/stable/c/b8917dce2134739b39bc0a5648b18427f2cad569\"}, {\"url\": \"https://git.kernel.org/stable/c/75b2c71ea581c7bb1303860d89366a42ad0506d2\"}, {\"url\": \"https://git.kernel.org/stable/c/98ce10f3f345e61fc6c83bff9cd11cda252b05ac\"}, {\"url\": \"https://git.kernel.org/stable/c/3124d320c22f3f4388d9ac5c8f37eaad0cefd6b1\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure\\n\\nsyzbot is reporting NULL pointer dereference at hci_uart_tty_close() [1],\\nfor rcu_sync_enter() is called without rcu_sync_init() due to\\nhci_uart_tty_open() ignoring percpu_init_rwsem() failure.\\n\\nWhile we are at it, fix that hci_uart_register_device() ignores\\npercpu_init_rwsem() failure and hci_uart_unregister_device() does not\\ncall percpu_free_rwsem().\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.150\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.75\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.19.17\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0.3\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.14.63\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.14.63\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T19:18:19.228Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-50374\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T19:18:19.228Z\", \"dateReserved\": \"2025-09-17T14:53:06.996Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-09-17T14:56:28.974Z\", \"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.