CVE-2023-53281 (GCVE-0-2023-53281)
Vulnerability from cvelistv5
Published
2025-09-16 08:11
Modified
2025-09-16 08:11
Severity ?
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/209850f17717a3b5cc558578bef5631ac7045539
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/215792eda008f6a1e7ed9d77fa20d582d22bb114
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2a50e44a66d268ee5db3d177f1fdc1503dbce6e7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4ab1bace1dd3875371b481ef4301c4671bddea22
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dc327e87c6d9bfd9ee08e76396b3c0ba848ec554
Impacted products
Vendor Product Version
Linux Linux Version: ae60744d5fad840b9d056d35b4b652d95e755846
Version: 041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc
Version: 041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc
Version: 041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc
Version: 041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc
Version: 1f6c99b94ca3caad346876b3e22e3ca3d25bc8ee
Version: eca9748d9267a38d532464e3305a38629e9c35a9
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   Linux Linux Version: 5.19
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/staging/rtl8723bs/core/rtw_mlme.c"
          ],
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        },
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          "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": [
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              "version": "0",
              "versionType": "semver"
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              "lessThanOrEqual": "5.15.*",
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              "version": "5.15.111",
              "versionType": "semver"
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              "version": "6.1.28",
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              "lessThanOrEqual": "6.2.*",
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              "version": "6.2.15",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.3.2",
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            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix"
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.111",
                  "versionStartIncluding": "5.15.47",
                  "vulnerable": true
                },
                {
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      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-16T08:11:15.364Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/209850f17717a3b5cc558578bef5631ac7045539"
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          "url": "https://git.kernel.org/stable/c/2a50e44a66d268ee5db3d177f1fdc1503dbce6e7"
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          "url": "https://git.kernel.org/stable/c/dc327e87c6d9bfd9ee08e76396b3c0ba848ec554"
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          "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": {
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53281",
    "datePublished": "2025-09-16T08:11:15.364Z",
    "dateReserved": "2025-09-16T08:09:37.991Z",
    "dateUpdated": "2025-09-16T08:11:15.364Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53281\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-16T08:15:37.030\",\"lastModified\":\"2025-09-16T12:49:16.060\",\"vulnStatus\":\"Awaiting Analysis\",\"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-\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.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/209850f17717a3b5cc558578bef5631ac7045539\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/215792eda008f6a1e7ed9d77fa20d582d22bb114\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2a50e44a66d268ee5db3d177f1fdc1503dbce6e7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4ab1bace1dd3875371b481ef4301c4671bddea22\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/dc327e87c6d9bfd9ee08e76396b3c0ba848ec554\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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