CVE-2023-53281

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This\nspin_unlock_bh() call re-enables softirqs which triggers an oops in\nkernel/softirq.c: __local_bh_enable_ip() when it calls\nlockdep_assert_irqs_enabled():\n\n[ 244.506087] WARNING: CPU: 2 PID: 0 at kernel/softirq.c:376 __local_bh_enable_ip+0xa6/0x100\n...\n[ 244.509022] Call Trace:\n[ 244.509048] <IRQ>\n[ 244.509100] _rtw_join_timeout_handler+0x134/0x170 [r8723bs]\n[ 244.509468] ? __pfx__rtw_join_timeout_handler+0x10/0x10 [r8723bs]\n[ 244.509772] ? __pfx__rtw_join_timeout_handler+0x10/0x10 [r8723bs]\n[ 244.510076] call_timer_fn+0x95/0x2a0\n[ 244.510200] __run_timers.part.0+0x1da/0x2d0\n\nThis oops is causd by the switch to spin_[un]lock_irq() which disables\nthe IRQs for the entire duration of _rtw_join_timeout_handler().\n\nDisabling the IRQs is not necessary since all code taking this lock\nruns from either user contexts or from softirqs, switch back to\nspin_[un]lock_bh() to fix this."}], "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": "ae60744d5fad840b9d056d35b4b652d95e755846", "lessThan": "209850f17717a3b5cc558578bef5631ac7045539", "status": "affected", "versionType": "git"}, {"version": "041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc", "lessThan": "2a50e44a66d268ee5db3d177f1fdc1503dbce6e7", "status": "affected", "versionType": "git"}, {"version": "041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc", "lessThan": "dc327e87c6d9bfd9ee08e76396b3c0ba848ec554", "status": "affected", "versionType": "git"}, {"version": "041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc", "lessThan": "4ab1bace1dd3875371b481ef4301c4671bddea22", "status": "affected", "versionType": "git"}, {"version": "041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc", "lessThan": "215792eda008f6a1e7ed9d77fa20d582d22bb114", "status": "affected", "versionType": "git"}, {"version": "1f6c99b94ca3caad346876b3e22e3ca3d25bc8ee", "status": "affected", "versionType": "git"}, {"version": "eca9748d9267a38d532464e3305a38629e9c35a9", "status": "affected", "versionType": "git"}, {"version": "5.15.47", "lessThan": "5.15.111", "status": "affected", "versionType": "semver"}, {"version": "5.17.15", "lessThan": "5.18", "status": "affected", "versionType": "semver"}, {"version": "5.18.4", "lessThan": "5.19", "status": "affected", "versionType": "semver"}]}, {"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": "5.19", "status": "affected"}, {"version": "0", "lessThan": "5.19", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.111", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.28", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2.15", "lessThanOrEqual": "6.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.3.2", "lessThanOrEqual": "6.3.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.4", "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": "5.15.47", "versionEndExcluding": "5.15.111"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.1.28"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.2.15"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.3.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17.15"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18.4"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/209850f17717a3b5cc558578bef5631ac7045539"}, {"url": "https://git.kernel.org/stable/c/2a50e44a66d268ee5db3d177f1fdc1503dbce6e7"}, {"url": "https://git.kernel.org/stable/c/dc327e87c6d9bfd9ee08e76396b3c0ba848ec554"}, {"url": "https://git.kernel.org/stable/c/4ab1bace1dd3875371b481ef4301c4671bddea22"}, {"url": "https://git.kernel.org/stable/c/215792eda008f6a1e7ed9d77fa20d582d22bb114"}], "title": "drivers: staging: rtl8723bs: Fix locking in _rtw_join_timeout_handler()", "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-2023-53281", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-01-14T18:08:32.150968Z"}}}], "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": "2026-01-14T18:12:54.826Z"}}]}}

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This\nspin_unlock_bh() call re-enables softirqs which triggers an oops in\nkernel/softirq.c: __local_bh_enable_ip() when it calls\nlockdep_assert_irqs_enabled():\n\n[ 244.506087] WARNING: CPU: 2 PID: 0 at kernel/softirq.c:376 __local_bh_enable_ip+0xa6/0x100\n...\n[ 244.509022] Call Trace:\n[ 244.509048] <IRQ>\n[ 244.509100] _rtw_join_timeout_handler+0x134/0x170 [r8723bs]\n[ 244.509468] ? __pfx__rtw_join_timeout_handler+0x10/0x10 [r8723bs]\n[ 244.509772] ? __pfx__rtw_join_timeout_handler+0x10/0x10 [r8723bs]\n[ 244.510076] call_timer_fn+0x95/0x2a0\n[ 244.510200] __run_timers.part.0+0x1da/0x2d0\n\nThis oops is causd by the switch to spin_[un]lock_irq() which disables\nthe IRQs for the entire duration of _rtw_join_timeout_handler().\n\nDisabling the IRQs is not necessary since all code taking this lock\nruns from either user contexts or from softirqs, switch back to\nspin_[un]lock_bh() to fix this."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.111", "versionStartIncluding": "5.15.47"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.28", "versionStartIncluding": "5.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.2.15", "versionStartIncluding": "5.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.3.2", "versionStartIncluding": "5.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.4", "versionStartIncluding": "5.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "5.17.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "5.18.4"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:41:53.275Z"}}}, "cveMetadata": {"cveId": "CVE-2023-53281", "state": "PUBLISHED", "dateUpdated": "2026-05-11T19:41:53.275Z", "dateReserved": "2025-09-16T08:09:37.991Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-09-16T08:11:15.364Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"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": "209850f17717a3b5cc558578bef5631ac7045539", "status": "affected", "version": "ae60744d5fad840b9d056d35b4b652d95e755846", "versionType": "git"}, {"lessThan": "2a50e44a66d268ee5db3d177f1fdc1503dbce6e7", "status": "affected", "version": "041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc", "versionType": "git"}, {"lessThan": "dc327e87c6d9bfd9ee08e76396b3c0ba848ec554", "status": "affected", "version": "041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc", "versionType": "git"}, {"lessThan": "4ab1bace1dd3875371b481ef4301c4671bddea22", "status": "affected", "version": "041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc", "versionType": "git"}, {"lessThan": "215792eda008f6a1e7ed9d77fa20d582d22bb114", "status": "affected", "version": "041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc", "versionType": "git"}, {"status": "affected", "version": "1f6c99b94ca3caad346876b3e22e3ca3d25bc8ee", "versionType": "git"}, {"status": "affected", "version": "eca9748d9267a38d532464e3305a38629e9c35a9", "versionType": "git"}, {"lessThan": "5.15.111", "status": "affected", "version": "5.15.47", "versionType": "semver"}, {"lessThan": "5.18", "status": "affected", "version": "5.17.15", "versionType": "semver"}, {"lessThan": "5.19", "status": "affected", "version": "5.18.4", "versionType": "semver"}]}, {"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": "5.19"}, {"lessThan": "5.19", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.111", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.28", "versionType": "semver"}, {"lessThanOrEqual": "6.2.*", "status": "unaffected", "version": "6.2.15", "versionType": "semver"}, {"lessThanOrEqual": "6.3.*", "status": "unaffected", "version": "6.3.2", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.4", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "F52129B7-7449-4303-8FFB-CC66480D50CA", "versionEndExcluding": "5.15.111", "versionStartIncluding": "5.15.47", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5BF6ED63-C6AF-4B5E-9814-C77A3C45349D", "versionEndExcluding": "5.18", "versionStartIncluding": "5.17.15", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A584E151-4AA3-4A1C-9652-D163CE70B1CB", "versionEndExcluding": "6.1.28", "versionStartIncluding": "5.18.4", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "3844A90B-940D-46C3-8D7B-9FF63F1AFC2F", "versionEndExcluding": "6.2.15", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "38F6F330-91A0-4675-8B90-6F950471A7CC", "versionEndExcluding": "6.3.2", "versionStartIncluding": "6.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers: staging: rtl8723bs: Fix locking in _rtw_join_timeout_handler()\n\nCommit 041879b12ddb (\"drivers: staging: rtl8192bs: Fix deadlock in\nrtw_joinbss_event_prehandle()\") besides fixing the deadlock also\nmodified _rtw_join_timeout_handler() to use spin_[un]lock_irq()\ninstead of spin_[un]lock_bh().\n\n_rtw_join_timeout_handler() calls rtw_do_join() which takes\npmlmepriv->scanned_queue.lock using spin_[un]lock_bh(). This\nspin_unlock_bh() call re-enables softirqs which triggers an oops in\nkernel/softirq.c: __local_bh_enable_ip() when it calls\nlockdep_assert_irqs_enabled():\n\n[ 244.506087] WARNING: CPU: 2 PID: 0 at kernel/softirq.c:376 __local_bh_enable_ip+0xa6/0x100\n...\n[ 244.509022] Call Trace:\n[ 244.509048] <IRQ>\n[ 244.509100] _rtw_join_timeout_handler+0x134/0x170 [r8723bs]\n[ 244.509468] ? __pfx__rtw_join_timeout_handler+0x10/0x10 [r8723bs]\n[ 244.509772] ? __pfx__rtw_join_timeout_handler+0x10/0x10 [r8723bs]\n[ 244.510076] call_timer_fn+0x95/0x2a0\n[ 244.510200] __run_timers.part.0+0x1da/0x2d0\n\nThis oops is causd by the switch to spin_[un]lock_irq() which disables\nthe IRQs for the entire duration of _rtw_join_timeout_handler().\n\nDisabling the IRQs is not necessary since all code taking this lock\nruns from either user contexts or from softirqs, switch back to\nspin_[un]lock_bh() to fix this."}], "id": "CVE-2023-53281", "lastModified": "2026-06-17T06:44:43.917", "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-2023-53281", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-01-14T18:08:32.150968Z", "version": "2.0.3"}}]}, "published": "2025-09-16T08:15:37.030", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/209850f17717a3b5cc558578bef5631ac7045539"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/215792eda008f6a1e7ed9d77fa20d582d22bb114"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2a50e44a66d268ee5db3d177f1fdc1503dbce6e7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4ab1bace1dd3875371b481ef4301c4671bddea22"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dc327e87c6d9bfd9ee08e76396b3c0ba848ec554"}], "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: rtl8723bs: Fix locking in _rtw_join_timeout_handler()", "id": "2395695", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2395695"}, "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"}, "details": ["No description is available for this CVE."], "name": "CVE-2023-53281", "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": "2025-09-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53281\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53281\nhttps://lore.kernel.org/linux-cve-announce/2025091624-CVE-2023-53281-7e00@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-09-17T10:05:05.117936+00:00", "updated": "2025-09-17T10:05:05.117970+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}