CVE-2022-49312 (GCVE-0-2022-49312)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:10 – Updated: 2026-05-11 18:57
VLAI
Title
staging: rtl8712: fix a potential memory leak in r871xu_drv_init()
Summary
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8712: fix a potential memory leak in r871xu_drv_init() In r871xu_drv_init(), if r8712_init_drv_sw() fails, then the memory allocated by r8712_alloc_io_queue() in r8712_usb_dvobj_init() is not properly released as there is no action will be performed by r8712_usb_dvobj_deinit(). To properly release it, we should call r8712_free_io_queue() in r8712_usb_dvobj_deinit(). Besides, in r871xu_dev_remove(), r8712_usb_dvobj_deinit() will be called by r871x_dev_unload() under condition `padapter->bup` and r8712_free_io_queue() is called by r8712_free_drv_sw(). However, r8712_usb_dvobj_deinit() does not rely on `padapter->bup` and calling r8712_free_io_queue() in r8712_free_drv_sw() is negative for better understading the code. So I move r8712_usb_dvobj_deinit() into r871xu_dev_remove(), and remove r8712_free_io_queue() from r8712_free_drv_sw().
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 2025-10-01 19:44 UTC
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < 5a89a92efc342dd7c44b6056da87debc598f9c73 (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < 8eb42d6d10f8fe509117859defddf9e72b4fa4d0 (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < 205e039fead72e87ad2838f5e649a4c4834f648b (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < a2882b8baad068d21c99fb2ab5a85a2bdbd5b834 (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < 7288ff561de650d4139fab80e9cb0da9b5b32434 (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.37
Unaffected: 0 , < 2.6.37 (semver)
Unaffected: 5.10.122 , ≤ 5.10.* (semver)
Unaffected: 5.15.47 , ≤ 5.15.* (semver)
Unaffected: 5.17.15 , ≤ 5.17.* (semver)
Unaffected: 5.18.4 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8712: fix a potential memory leak in r871xu_drv_init()\n\nIn r871xu_drv_init(), if r8712_init_drv_sw() fails, then the memory\nallocated by r8712_alloc_io_queue() in r8712_usb_dvobj_init() is not\nproperly released as there is no action will be performed by\nr8712_usb_dvobj_deinit().\nTo properly release it, we should call r8712_free_io_queue() in\nr8712_usb_dvobj_deinit().\n\nBesides, in r871xu_dev_remove(), r8712_usb_dvobj_deinit() will be called\nby r871x_dev_unload() under condition `padapter-\u003ebup` and\nr8712_free_io_queue() is called by r8712_free_drv_sw().\nHowever, r8712_usb_dvobj_deinit() does not rely on `padapter-\u003ebup` and\ncalling r8712_free_io_queue() in r8712_free_drv_sw() is negative for\nbetter understading the code.\nSo I move r8712_usb_dvobj_deinit() into r871xu_dev_remove(), and remove\nr8712_free_io_queue() from r8712_free_drv_sw()."
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            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: staging: rtl8712: corrige una posible p\u00e9rdida de memoria en r871xu_drv_init() En r871xu_drv_init(), si r8712_init_drv_sw() falla, entonces la memoria asignada por r8712_alloc_io_queue() en r8712_usb_dvobj_init() no se libera correctamente ya que r8712_usb_dvobj_deinit() no realizar\u00e1 ninguna acci\u00f3n. Para liberarla correctamente, debemos llamar a r8712_free_io_queue() en r8712_usb_dvobj_deinit(). Adem\u00e1s, en r871xu_dev_remove(), r8712_usb_dvobj_deinit() ser\u00e1 llamado por r871x_dev_unload() bajo la condici\u00f3n `padapter-\u0026gt;bup` y r8712_free_io_queue() ser\u00e1 llamado por r8712_free_drv_sw(). Sin embargo, r8712_usb_dvobj_deinit() no depende de `padapter-\u0026gt;bup` y llamar a r8712_free_io_queue() en r8712_free_drv_sw() es negativo para una mejor comprensi\u00f3n del c\u00f3digo. Entonces muevo r8712_usb_dvobj_deinit() a r871xu_dev_remove() y elimino r8712_free_io_queue() de r8712_free_drv_sw()."
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        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-401"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-401"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-30T10:39:26+00:00",
      "cve": "CVE-2022-49312",
      "id": "CVE-2022-49312",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_affected": "28",
      "product_status:known_not_affected": "246",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: staging: rtl8712: fix a potential memory leak in r871xu_drv_init()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49312.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-03T16:59:21Z",
      "cve": "CVE-2022-49312",
      "id": "CVE-2022-49312",
      "initial_release_date": "2025-02-27T03:08:58Z",
      "product_status:known_affected": "334",
      "product_status:known_not_affected": "405",
      "product_status:recommended": "223",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-49312",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-49312.json",
      "version": "47"
    },
    "vulnrichment": {
      "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-2022-49312",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-10-01T19:44:14.240096Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-401",
                    "description": "CWE-401 Missing Release of Memory after Effective Lifetime",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-10-01T16:14:15.914Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/staging/rtl8712/os_intfs.c",
                "drivers/staging/rtl8712/usb_intf.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "5a89a92efc342dd7c44b6056da87debc598f9c73",
                  "status": "affected",
                  "version": "2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef",
                  "versionType": "git"
                },
                {
                  "lessThan": "8eb42d6d10f8fe509117859defddf9e72b4fa4d0",
                  "status": "affected",
                  "version": "2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef",
                  "versionType": "git"
                },
                {
                  "lessThan": "205e039fead72e87ad2838f5e649a4c4834f648b",
                  "status": "affected",
                  "version": "2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef",
                  "versionType": "git"
                },
                {
                  "lessThan": "a2882b8baad068d21c99fb2ab5a85a2bdbd5b834",
                  "status": "affected",
                  "version": "2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef",
                  "versionType": "git"
                },
                {
                  "lessThan": "7288ff561de650d4139fab80e9cb0da9b5b32434",
                  "status": "affected",
                  "version": "2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/staging/rtl8712/os_intfs.c",
                "drivers/staging/rtl8712/usb_intf.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "2.6.37"
                },
                {
                  "lessThan": "2.6.37",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.122",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.47",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.17.*",
                  "status": "unaffected",
                  "version": "5.17.15",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.18.*",
                  "status": "unaffected",
                  "version": "5.18.4",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "5.19",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.122",
                      "versionStartIncluding": "2.6.37",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.47",
                      "versionStartIncluding": "2.6.37",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.17.15",
                      "versionStartIncluding": "2.6.37",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.18.4",
                      "versionStartIncluding": "2.6.37",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.19",
                      "versionStartIncluding": "2.6.37",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8712: fix a potential memory leak in r871xu_drv_init()\n\nIn r871xu_drv_init(), if r8712_init_drv_sw() fails, then the memory\nallocated by r8712_alloc_io_queue() in r8712_usb_dvobj_init() is not\nproperly released as there is no action will be performed by\nr8712_usb_dvobj_deinit().\nTo properly release it, we should call r8712_free_io_queue() in\nr8712_usb_dvobj_deinit().\n\nBesides, in r871xu_dev_remove(), r8712_usb_dvobj_deinit() will be called\nby r871x_dev_unload() under condition `padapter-\u003ebup` and\nr8712_free_io_queue() is called by r8712_free_drv_sw().\nHowever, r8712_usb_dvobj_deinit() does not rely on `padapter-\u003ebup` and\ncalling r8712_free_io_queue() in r8712_free_drv_sw() is negative for\nbetter understading the code.\nSo I move r8712_usb_dvobj_deinit() into r871xu_dev_remove(), and remove\nr8712_free_io_queue() from r8712_free_drv_sw()."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T18:57:15.332Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/5a89a92efc342dd7c44b6056da87debc598f9c73"
            },
            {
              "url": "https://git.kernel.org/stable/c/8eb42d6d10f8fe509117859defddf9e72b4fa4d0"
            },
            {
              "url": "https://git.kernel.org/stable/c/205e039fead72e87ad2838f5e649a4c4834f648b"
            },
            {
              "url": "https://git.kernel.org/stable/c/a2882b8baad068d21c99fb2ab5a85a2bdbd5b834"
            },
            {
              "url": "https://git.kernel.org/stable/c/7288ff561de650d4139fab80e9cb0da9b5b32434"
            }
          ],
          "title": "staging: rtl8712: fix a potential memory leak in r871xu_drv_init()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2022-49312",
        "datePublished": "2025-02-26T02:10:41.627Z",
        "dateReserved": "2025-02-26T02:08:31.536Z",
        "dateUpdated": "2026-05-11T18:57:15.332Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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