CVE-2022-49311

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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"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T19:46:58.057Z"}}]}}

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What`s more, we change spin_lock_bh() to\nspin_lock_irq() in _rtw_join_timeout_handler() in order to\nprevent deadlock."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.47", "versionStartIncluding": "4.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.17.15", "versionStartIncluding": "4.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.18.4", "versionStartIncluding": "4.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.19", "versionStartIncluding": "4.12"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T18:57:14.205Z"}}}, "cveMetadata": {"cveId": "CVE-2022-49311", "state": "PUBLISHED", "dateUpdated": "2026-05-11T18:57:14.205Z", "dateReserved": "2025-02-26T02:08:31.536Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-02-26T02:10:41.139Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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What`s more, we change spin_lock_bh() to\nspin_lock_irq() in _rtw_join_timeout_handler() in order to\nprevent deadlock."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drivers: staging: rtl8192bs: Corregir bloqueo en rtw_joinbss_event_prehandle() Hay un bloqueo en rtw_joinbss_event_prehandle(), que se muestra a continuaci\u00f3n: (Hilo 1) | (Hilo 2) | _set_timer() rtw_joinbss_event_prehandle()| mod_timer() spin_lock_bh() //(1) | (esperar un tiempo) ... | _rtw_join_timeout_handler() del_timer_sync() | spin_lock_bh() //(2) (esperar a que el temporizador se detenga) | ... Mantenemos pmlmepriv->lock en la posici\u00f3n (1) del hilo 1 y usamos del_timer_sync() para esperar a que el temporizador se detenga, pero el controlador del temporizador tambi\u00e9n necesita pmlmepriv->lock en la posici\u00f3n (2) del hilo 2. Como resultado, rtw_joinbss_event_prehandle() se bloquear\u00e1 para siempre. Este parche extrae del_timer_sync() de la protecci\u00f3n de spin_lock_bh(), lo que podr\u00eda permitir que el controlador del temporizador obtenga el bloqueo necesario. Adem\u00e1s, cambiamos spin_lock_bh() por spin_lock_irq() en _rtw_join_timeout_handler() para evitar el bloqueo."}], "id": "CVE-2022-49311", "lastModified": "2026-06-17T05:17:40.720", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"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"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-49311", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T19:44:17.966247Z", "version": "2.0.3"}}]}, "published": "2025-02-26T07:01:07.887", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1f6c99b94ca3caad346876b3e22e3ca3d25bc8ee"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ae60744d5fad840b9d056d35b4b652d95e755846"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/eca9748d9267a38d532464e3305a38629e9c35a9"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-667"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: drivers: staging: rtl8192bs: Fix deadlock in rtw_joinbss_event_prehandle()", "id": "2348009", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348009"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-667", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrivers: staging: rtl8192bs: Fix deadlock in rtw_joinbss_event_prehandle()\nThere is a deadlock in rtw_joinbss_event_prehandle(), which is shown\nbelow:\n(Thread 1) | (Thread 2)\n| _set_timer()\nrtw_joinbss_event_prehandle()| mod_timer()\nspin_lock_bh() //(1) | (wait a time)\n... | _rtw_join_timeout_handler()\ndel_timer_sync() | spin_lock_bh() //(2)\n(wait timer to stop) | ...\nWe hold pmlmepriv->lock in position (1) of thread 1 and\nuse del_timer_sync() to wait timer to stop, but timer handler\nalso need pmlmepriv->lock in position (2) of thread 2.\nAs a result, rtw_joinbss_event_prehandle() will block forever.\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."], "name": "CVE-2022-49311", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49311\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49311\nhttps://lore.kernel.org/linux-cve-announce/2025022636-CVE-2022-49311-fe0f@gregkh/T"], "threat_severity": "Moderate"}

{}