wifi: mac80211: fortify the spinlock against deadlock by interrupt

{
  "id": "c472a5d51292d905ae2cbe94c90f3b238379be2214a71e4ae94dd4d09e4be8a5",
  "url": "https://osv.dev/vulnerability/CVE-2023-54288",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "wifi: mac80211: fortify the spinlock against deadlock by interrupt",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fortify the spinlock against deadlock by interrupt In the function ieee80211_tx_dequeue() there is a particular locking sequence: begin: spin_lock(&local->queue_stop_reason_lock); q_stopped = local->queue_stop_reasons[q]; spin_unlock(&local->queue_stop_reason_lock); However small the chance (increased by ftracetest), an asynchronous interrupt can occur in between of spin_lock() and spin_unlock(), and the interrupt routine will attempt to lock the same &local->queue_stop_reason_lock again. This will cause a costly reset of the CPU and the wifi device or an altogether hang in the single CPU and single core scenario. The only remaining spin_lock(&local->queue_stop_reason_lock) that did not disable interrupts was patched, which should prevent any deadlocks on the same CPU/core and the same wifi device. This is the probable trace of the deadlock: kernel: ================================ kernel: WARNING: inconsistent lock state kernel: 6.3.0-rc6-mt-20230401-00001-gf86822a1170f #4 Tainted: G W kernel: -------------------------------- kernel: inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage. kernel: kworker/5:0/25656 [HC0[0]:SC0[0]:HE1:SE1] takes: kernel: ffff9d6190779478 (&local->queue_stop_reason_lock){+.?.}-{2:2}, at: return_to_handler+0x0/0x40 kernel: {IN-SOFTIRQ-W} state was registered at: kernel: lock_acquire+0xc7/0x2d0 kernel: _raw_spin_lock+0x36/0x50 kernel: ieee80211_tx_dequeue+0xb4/0x1330",
    "evidence": "osv:CVE-2023-54288",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.30",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.3.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2023-54288",
      "aliases": [
        "CVE-2023-54288"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                  "introduced": "7b8fe53d2a1da48db02ae961b29b8ee2f5515861"
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                {
                  "fixed": "c79d794a2cd76eca47b2491c5030be9a6418c5d6"
                }
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            },
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4444bc2116aecdcde87dce80373540adc8bd478b"
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                {
                  "fixed": "6df3eafa31b3ee4f0cba601ca857019964355034"
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                {
                  "fixed": "ef6e1997da63ad0ac3fe33153fec9524c9ae56c9"
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            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6.1.9"
                },
                {
                  "fixed": "6.1.30"
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          ],
          "versions": [
            "v6.1.29",
            "v6.1.28",
            "v6.1.27",
            "v6.1.26",
            "v6.1.25",
            "v6.1.24",
            "v6.1.23",
            "v6.1.22",
            "v6.1.21",
            "v6.1.20",
            "v6.1.19",
            "v6.1.18",
            "v6.1.17",
            "v6.1.16",
            "v6.1.15",
            "v6.1.14",
            "v6.1.13",
            "v6.1.12",
            "v6.1.11",
            "v6.1.10",
            "v6.1.9"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54288.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6.1.30"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.3.4"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54288.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:36.943009025Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/6df3eafa31b3ee4f0cba601ca857019964355034",
        "https://git.kernel.org/stable/c/c79d794a2cd76eca47b2491c5030be9a6418c5d6",
        "https://git.kernel.org/stable/c/ef6e1997da63ad0ac3fe33153fec9524c9ae56c9",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54288.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-54288",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54288.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-54288",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 504389,
  "published_at": "2025-12-30T12:23:27.765+00:00"
}