CVE-2022-49780 (GCVE-0-2022-49780)
Vulnerability from cvelistv5
Published
2025-05-01 14:09
Modified
2025-05-04 08:45
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: target: tcm_loop: Fix possible name leak in tcm_loop_setup_hba_bus() If device_register() fails in tcm_loop_setup_hba_bus(), the name allocated by dev_set_name() need be freed. As comment of device_register() says, it should use put_device() to give up the reference in the error path. So fix this by calling put_device(), then the name can be freed in kobject_cleanup(). The 'tl_hba' will be freed in tcm_loop_release_adapter(), so it don't need goto error label in this case.
References
Impacted products
Vendor Product Version
Linux Linux Version: 3703b2c5d041a68095cdd22380c23ce27d449ad7
Version: 3703b2c5d041a68095cdd22380c23ce27d449ad7
Version: 3703b2c5d041a68095cdd22380c23ce27d449ad7
Version: 3703b2c5d041a68095cdd22380c23ce27d449ad7
Version: 3703b2c5d041a68095cdd22380c23ce27d449ad7
Version: 3703b2c5d041a68095cdd22380c23ce27d449ad7
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/target/loopback/tcm_loop.c"
          ],
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "2.6.39"
            },
            {
              "lessThan": "2.6.39",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.267",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.225",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.156",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.80",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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                  "vulnerable": true
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                  "versionEndExcluding": "5.4.225",
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: tcm_loop: Fix possible name leak in tcm_loop_setup_hba_bus()\n\nIf device_register() fails in tcm_loop_setup_hba_bus(), the name allocated\nby dev_set_name() need be freed. As comment of device_register() says, it\nshould use put_device() to give up the reference in the error path. So fix\nthis by calling put_device(), then the name can be freed in kobject_cleanup().\nThe \u0027tl_hba\u0027 will be freed in tcm_loop_release_adapter(), so it don\u0027t need\ngoto error label in this case."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:45:13.302Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/41a6b8b527a5957fab41c3c05e25ad125268e2e9"
        },
        {
          "url": "https://git.kernel.org/stable/c/28f7ff5e7559d226e63c7c5de74eb075a83d8c53"
        },
        {
          "url": "https://git.kernel.org/stable/c/75205f1b47a88c3fac4f30bd7567e89b2887c7fd"
        },
        {
          "url": "https://git.kernel.org/stable/c/a636772988bafab89278e7bb3420d8e8eacfe912"
        },
        {
          "url": "https://git.kernel.org/stable/c/dce0589a3faec9e2e543e97bca7e62592ec85585"
        },
        {
          "url": "https://git.kernel.org/stable/c/bc68e428d4963af0201e92159629ab96948f0893"
        }
      ],
      "title": "scsi: target: tcm_loop: Fix possible name leak in tcm_loop_setup_hba_bus()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49780",
    "datePublished": "2025-05-01T14:09:15.135Z",
    "dateReserved": "2025-04-16T07:17:33.806Z",
    "dateUpdated": "2025-05-04T08:45:13.302Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49780\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-01T15:16:01.200\",\"lastModified\":\"2025-05-02T13:53:20.943\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nscsi: target: tcm_loop: Fix possible name leak in tcm_loop_setup_hba_bus()\\n\\nIf device_register() fails in tcm_loop_setup_hba_bus(), the name allocated\\nby dev_set_name() need be freed. As comment of device_register() says, it\\nshould use put_device() to give up the reference in the error path. So fix\\nthis by calling put_device(), then the name can be freed in kobject_cleanup().\\nThe \u0027tl_hba\u0027 will be freed in tcm_loop_release_adapter(), so it don\u0027t need\\ngoto error label in this case.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: target: tcm_loop: Se corrige una posible fuga de nombre en tcm_loop_setup_hba_bus(). Si device_register() falla en tcm_loop_setup_hba_bus(), se debe liberar el nombre asignado por dev_set_name(). Como se indica en el comentario de device_register(), se debe usar put_device() para liberar la referencia en la ruta de error. Para solucionar esto, se debe llamar a put_device(); luego, el nombre se puede liberar en kobject_cleanup(). El \u0027tl_hba\u0027 se liberar\u00e1 en tcm_loop_release_adapter(), por lo que no es necesario ir a la etiqueta de error en este caso.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/28f7ff5e7559d226e63c7c5de74eb075a83d8c53\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/41a6b8b527a5957fab41c3c05e25ad125268e2e9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/75205f1b47a88c3fac4f30bd7567e89b2887c7fd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a636772988bafab89278e7bb3420d8e8eacfe912\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bc68e428d4963af0201e92159629ab96948f0893\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/dce0589a3faec9e2e543e97bca7e62592ec85585\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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