CVE-2023-53281 (GCVE-0-2023-53281)
Vulnerability from cvelistv5 – Published: 2025-09-16 08:11 – Updated: 2026-05-23 15:28
VLAI
EPSS
VEX
Title
drivers: staging: rtl8723bs: Fix locking in _rtw_join_timeout_handler()
Summary
In the Linux kernel, the following vulnerability has been resolved:
drivers: staging: rtl8723bs: Fix locking in _rtw_join_timeout_handler()
Commit 041879b12ddb ("drivers: staging: rtl8192bs: Fix deadlock in
rtw_joinbss_event_prehandle()") besides fixing the deadlock also
modified _rtw_join_timeout_handler() to use spin_[un]lock_irq()
instead of spin_[un]lock_bh().
_rtw_join_timeout_handler() calls rtw_do_join() which takes
pmlmepriv->scanned_queue.lock using spin_[un]lock_bh(). This
spin_unlock_bh() call re-enables softirqs which triggers an oops in
kernel/softirq.c: __local_bh_enable_ip() when it calls
lockdep_assert_irqs_enabled():
[ 244.506087] WARNING: CPU: 2 PID: 0 at kernel/softirq.c:376 __local_bh_enable_ip+0xa6/0x100
...
[ 244.509022] Call Trace:
[ 244.509048] <IRQ>
[ 244.509100] _rtw_join_timeout_handler+0x134/0x170 [r8723bs]
[ 244.509468] ? __pfx__rtw_join_timeout_handler+0x10/0x10 [r8723bs]
[ 244.509772] ? __pfx__rtw_join_timeout_handler+0x10/0x10 [r8723bs]
[ 244.510076] call_timer_fn+0x95/0x2a0
[ 244.510200] __run_timers.part.0+0x1da/0x2d0
This oops is causd by the switch to spin_[un]lock_irq() which disables
the IRQs for the entire duration of _rtw_join_timeout_handler().
Disabling the IRQs is not necessary since all code taking this lock
runs from either user contexts or from softirqs, switch back to
spin_[un]lock_bh() to fix this.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 18:08 UTC
CWE
- CWE-667 - Improper Locking
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
ae60744d5fad840b9d056d35b4b652d95e755846 , < 209850f17717a3b5cc558578bef5631ac7045539
(git)
Affected: 041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc , < 2a50e44a66d268ee5db3d177f1fdc1503dbce6e7 (git) Affected: 041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc , < dc327e87c6d9bfd9ee08e76396b3c0ba848ec554 (git) Affected: 041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc , < 4ab1bace1dd3875371b481ef4301c4671bddea22 (git) Affected: 041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc , < 215792eda008f6a1e7ed9d77fa20d582d22bb114 (git) Affected: 1f6c99b94ca3caad346876b3e22e3ca3d25bc8ee (git) Affected: eca9748d9267a38d532464e3305a38629e9c35a9 (git) Affected: 5.15.47 , < 5.15.111 (semver) Affected: 5.17.15 , < 5.18 (semver) Affected: 5.18.4 , < 5.19 (semver) |
guessed | |
| Linux | Linux |
Affected:
5.19
Unaffected: 0 , < 5.19 (semver) Unaffected: 5.15.111 , ≤ 5.15.* (semver) Unaffected: 6.1.28 , ≤ 6.1.* (semver) Unaffected: 6.2.15 , ≤ 6.2.* (semver) Unaffected: 6.3.2 , ≤ 6.3.* (semver) Unaffected: 6.4 , ≤ * (original_commit_for_fix) |
guessed |
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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] \u003cIRQ\u003e\\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 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"redhat_vex": {
"aggregate_severity": "None",
"current_release_date": "2026-06-30T10:32:18+00:00",
"cve": "CVE-2023-53281",
"id": "CVE-2023-53281",
"initial_release_date": "2023-01-01T00:00:00+00:00",
"product_status:known_not_affected": "274",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: drivers: staging: rtl8723bs: Fix locking in _rtw_join_timeout_handler()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53281.json",
"version": "3"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"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\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-14T18:08:27.406Z\"}}], \"cna\": {\"title\": \"drivers: staging: rtl8723bs: Fix locking in _rtw_join_timeout_handler()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"ae60744d5fad840b9d056d35b4b652d95e755846\", \"lessThan\": \"209850f17717a3b5cc558578bef5631ac7045539\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc\", \"lessThan\": \"2a50e44a66d268ee5db3d177f1fdc1503dbce6e7\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc\", \"lessThan\": \"dc327e87c6d9bfd9ee08e76396b3c0ba848ec554\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc\", \"lessThan\": \"4ab1bace1dd3875371b481ef4301c4671bddea22\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc\", \"lessThan\": \"215792eda008f6a1e7ed9d77fa20d582d22bb114\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1f6c99b94ca3caad346876b3e22e3ca3d25bc8ee\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"eca9748d9267a38d532464e3305a38629e9c35a9\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/staging/rtl8723bs/core/rtw_mlme.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.19\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.19\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.15.111\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.28\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.2.15\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.2.*\"}, {\"status\": \"unaffected\", \"version\": \"6.3.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.3.*\"}, {\"status\": \"unaffected\", \"version\": \"6.4\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/staging/rtl8723bs/core/rtw_mlme.c\"], \"defaultStatus\": \"affected\"}], \"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\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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-\u003escanned_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] \u003cIRQ\u003e\\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\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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