CVE-2022-49311 (GCVE-0-2022-49311)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:10 – Updated: 2025-10-01 19:46
VLAI?
Title
drivers: staging: rtl8192bs: Fix deadlock in rtw_joinbss_event_prehandle()
Summary
In the Linux kernel, the following vulnerability has been resolved: drivers: staging: rtl8192bs: Fix deadlock in rtw_joinbss_event_prehandle() There is a deadlock in rtw_joinbss_event_prehandle(), which is shown below: (Thread 1) | (Thread 2) | _set_timer() rtw_joinbss_event_prehandle()| mod_timer() spin_lock_bh() //(1) | (wait a time) ... | _rtw_join_timeout_handler() del_timer_sync() | spin_lock_bh() //(2) (wait timer to stop) | ... We hold pmlmepriv->lock in position (1) of thread 1 and use del_timer_sync() to wait timer to stop, but timer handler also need pmlmepriv->lock in position (2) of thread 2. As a result, rtw_joinbss_event_prehandle() will block forever. This patch extracts del_timer_sync() from the protection of spin_lock_bh(), which could let timer handler to obtain the needed lock. What`s more, we change spin_lock_bh() to spin_lock_irq() in _rtw_join_timeout_handler() in order to prevent deadlock.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < ae60744d5fad840b9d056d35b4b652d95e755846 (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 1f6c99b94ca3caad346876b3e22e3ca3d25bc8ee (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < eca9748d9267a38d532464e3305a38629e9c35a9 (git)
Affected: 554c0a3abf216c991c5ebddcdb2c08689ecd290b , < 041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc (git)
Create a notification for this product.
    Linux Linux Affected: 4.12
Unaffected: 0 , < 4.12 (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)
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-2022-49311",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:44:17.966247Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-667",
                "description": "CWE-667 Improper Locking",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T19:46:58.057Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/staging/rtl8723bs/core/rtw_mlme.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ae60744d5fad840b9d056d35b4b652d95e755846",
              "status": "affected",
              "version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b",
              "versionType": "git"
            },
            {
              "lessThan": "1f6c99b94ca3caad346876b3e22e3ca3d25bc8ee",
              "status": "affected",
              "version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b",
              "versionType": "git"
            },
            {
              "lessThan": "eca9748d9267a38d532464e3305a38629e9c35a9",
              "status": "affected",
              "version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b",
              "versionType": "git"
            },
            {
              "lessThan": "041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc",
              "status": "affected",
              "version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/staging/rtl8723bs/core/rtw_mlme.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.12"
            },
            {
              "lessThan": "4.12",
              "status": "unaffected",
              "version": "0",
              "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": "5.15.47",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.15",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18.4",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19",
                  "versionStartIncluding": "4.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers: staging: rtl8192bs: Fix deadlock in rtw_joinbss_event_prehandle()\n\nThere is a deadlock in rtw_joinbss_event_prehandle(), which is shown\nbelow:\n\n   (Thread 1)                |      (Thread 2)\n                             | _set_timer()\nrtw_joinbss_event_prehandle()|  mod_timer()\n spin_lock_bh() //(1)        |  (wait a time)\n ...                         | _rtw_join_timeout_handler()\n del_timer_sync()            |  spin_lock_bh() //(2)\n (wait timer to stop)        |  ...\n\nWe hold pmlmepriv-\u003elock in position (1) of thread 1 and\nuse del_timer_sync() to wait timer to stop, but timer handler\nalso need pmlmepriv-\u003elock in position (2) of thread 2.\nAs a result, rtw_joinbss_event_prehandle() will block forever.\n\nThis patch extracts del_timer_sync() from the protection of\nspin_lock_bh(), which could let timer handler to obtain\nthe needed lock. What`s more, we change spin_lock_bh() to\nspin_lock_irq() in _rtw_join_timeout_handler() in order to\nprevent deadlock."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:34:56.531Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ae60744d5fad840b9d056d35b4b652d95e755846"
        },
        {
          "url": "https://git.kernel.org/stable/c/1f6c99b94ca3caad346876b3e22e3ca3d25bc8ee"
        },
        {
          "url": "https://git.kernel.org/stable/c/eca9748d9267a38d532464e3305a38629e9c35a9"
        },
        {
          "url": "https://git.kernel.org/stable/c/041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc"
        }
      ],
      "title": "drivers: staging: rtl8192bs: Fix deadlock in rtw_joinbss_event_prehandle()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49311",
    "datePublished": "2025-02-26T02:10:41.139Z",
    "dateReserved": "2025-02-26T02:08:31.536Z",
    "dateUpdated": "2025-10-01T19:46:58.057Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"cna\": {\"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T08:34:56.531Z\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrivers: staging: rtl8192bs: Fix deadlock in rtw_joinbss_event_prehandle()\\n\\nThere is a deadlock in rtw_joinbss_event_prehandle(), which is shown\\nbelow:\\n\\n   (Thread 1)                |      (Thread 2)\\n                             | _set_timer()\\nrtw_joinbss_event_prehandle()|  mod_timer()\\n spin_lock_bh() //(1)        |  (wait a time)\\n ...                         | _rtw_join_timeout_handler()\\n del_timer_sync()            |  spin_lock_bh() //(2)\\n (wait timer to stop)        |  ...\\n\\nWe hold pmlmepriv-\u003elock in position (1) of thread 1 and\\nuse del_timer_sync() to wait timer to stop, but timer handler\\nalso need pmlmepriv-\u003elock in position (2) of thread 2.\\nAs a result, rtw_joinbss_event_prehandle() will block forever.\\n\\nThis patch extracts del_timer_sync() from the protection of\\nspin_lock_bh(), which could let timer handler to obtain\\nthe needed lock. What`s more, we change spin_lock_bh() to\\nspin_lock_irq() in _rtw_join_timeout_handler() in order to\\nprevent deadlock.\"}], \"affected\": [{\"product\": \"Linux\", \"vendor\": \"Linux\", \"defaultStatus\": \"unaffected\", \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"programFiles\": [\"drivers/staging/rtl8723bs/core/rtw_mlme.c\"], \"versions\": [{\"version\": \"554c0a3abf216c991c5ebddcdb2c08689ecd290b\", \"lessThan\": \"ae60744d5fad840b9d056d35b4b652d95e755846\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"554c0a3abf216c991c5ebddcdb2c08689ecd290b\", \"lessThan\": \"1f6c99b94ca3caad346876b3e22e3ca3d25bc8ee\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"554c0a3abf216c991c5ebddcdb2c08689ecd290b\", \"lessThan\": \"eca9748d9267a38d532464e3305a38629e9c35a9\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"554c0a3abf216c991c5ebddcdb2c08689ecd290b\", \"lessThan\": \"041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc\", \"status\": \"affected\", \"versionType\": \"git\"}]}, {\"product\": \"Linux\", \"vendor\": \"Linux\", \"defaultStatus\": \"affected\", \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"programFiles\": [\"drivers/staging/rtl8723bs/core/rtw_mlme.c\"], \"versions\": [{\"version\": \"4.12\", \"status\": \"affected\"}, {\"version\": \"0\", \"lessThan\": \"4.12\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"5.15.47\", \"lessThanOrEqual\": \"5.15.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"5.17.15\", \"lessThanOrEqual\": \"5.17.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"5.18.4\", \"lessThanOrEqual\": \"5.18.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"5.19\", \"lessThanOrEqual\": \"*\", \"status\": \"unaffected\", \"versionType\": \"original_commit_for_fix\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.12\", \"versionEndExcluding\": \"5.15.47\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.12\", \"versionEndExcluding\": \"5.17.15\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.12\", \"versionEndExcluding\": \"5.18.4\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.12\", \"versionEndExcluding\": \"5.19\"}]}]}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/ae60744d5fad840b9d056d35b4b652d95e755846\"}, {\"url\": \"https://git.kernel.org/stable/c/1f6c99b94ca3caad346876b3e22e3ca3d25bc8ee\"}, {\"url\": \"https://git.kernel.org/stable/c/eca9748d9267a38d532464e3305a38629e9c35a9\"}, {\"url\": \"https://git.kernel.org/stable/c/041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc\"}], \"title\": \"drivers: staging: rtl8192bs: Fix deadlock in rtw_joinbss_event_prehandle()\", \"x_generator\": {\"engine\": \"bippy-1.2.0\"}}, \"adp\": [{\"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-2022-49311\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T19:44:17.966247Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-667\", \"description\": \"CWE-667 Improper Locking\"}]}], \"providerMetadata\": {\"shortName\": \"CISA-ADP\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"dateUpdated\": \"2025-10-01T16:14:10.548Z\"}, \"title\": \"CISA ADP Vulnrichment\"}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49311\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"Linux\", \"dateReserved\": \"2025-02-26T02:08:31.536Z\", \"datePublished\": \"2025-02-26T02:10:41.139Z\", \"dateUpdated\": \"2025-05-04T08:34:56.531Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.