CVE-2025-38174 (GCVE-0-2025-38174)
Vulnerability from cvelistv5
Published
2025-07-04 10:39
Modified
2025-07-28 04:14
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Do not double dequeue a configuration request Some of our devices crash in tb_cfg_request_dequeue(): general protection fault, probably for non-canonical address 0xdead000000000122 CPU: 6 PID: 91007 Comm: kworker/6:2 Tainted: G U W 6.6.65 RIP: 0010:tb_cfg_request_dequeue+0x2d/0xa0 Call Trace: <TASK> ? tb_cfg_request_dequeue+0x2d/0xa0 tb_cfg_request_work+0x33/0x80 worker_thread+0x386/0x8f0 kthread+0xed/0x110 ret_from_fork+0x38/0x50 ret_from_fork_asm+0x1b/0x30 The circumstances are unclear, however, the theory is that tb_cfg_request_work() can be scheduled twice for a request: first time via frame.callback from ring_work() and second time from tb_cfg_request(). Both times kworkers will execute tb_cfg_request_dequeue(), which results in double list_del() from the ctl->request_queue (the list poison deference hints at it: 0xdead000000000122). Do not dequeue requests that don't have TB_CFG_REQUEST_ACTIVE bit set.
References
Impacted products
Vendor Product Version
Linux Linux Version: 16603153666d22df544ae9f9b3764fd18da28eeb
Version: 16603153666d22df544ae9f9b3764fd18da28eeb
Version: 16603153666d22df544ae9f9b3764fd18da28eeb
Version: 16603153666d22df544ae9f9b3764fd18da28eeb
Version: 16603153666d22df544ae9f9b3764fd18da28eeb
Version: 16603153666d22df544ae9f9b3764fd18da28eeb
Version: 16603153666d22df544ae9f9b3764fd18da28eeb
Version: 16603153666d22df544ae9f9b3764fd18da28eeb
Version: 16603153666d22df544ae9f9b3764fd18da28eeb
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{
  "containers": {
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          "product": "Linux",
          "programFiles": [
            "drivers/thunderbolt/ctl.c"
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          "vendor": "Linux",
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "unaffected",
              "version": "0",
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              "status": "unaffected",
              "version": "5.4.295",
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            },
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              "status": "unaffected",
              "version": "5.10.239",
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              "version": "5.15.186",
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              "versionType": "original_commit_for_fix"
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nthunderbolt: Do not double dequeue a configuration request\n\nSome of our devices crash in tb_cfg_request_dequeue():\n\n general protection fault, probably for non-canonical address 0xdead000000000122\n\n CPU: 6 PID: 91007 Comm: kworker/6:2 Tainted: G U W 6.6.65\n RIP: 0010:tb_cfg_request_dequeue+0x2d/0xa0\n Call Trace:\n \u003cTASK\u003e\n ? tb_cfg_request_dequeue+0x2d/0xa0\n tb_cfg_request_work+0x33/0x80\n worker_thread+0x386/0x8f0\n kthread+0xed/0x110\n ret_from_fork+0x38/0x50\n ret_from_fork_asm+0x1b/0x30\n\nThe circumstances are unclear, however, the theory is that\ntb_cfg_request_work() can be scheduled twice for a request:\nfirst time via frame.callback from ring_work() and second\ntime from tb_cfg_request().  Both times kworkers will execute\ntb_cfg_request_dequeue(), which results in double list_del()\nfrom the ctl-\u003erequest_queue (the list poison deference hints\nat it: 0xdead000000000122).\n\nDo not dequeue requests that don\u0027t have TB_CFG_REQUEST_ACTIVE\nbit set."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:14:16.356Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e49e994cd83705f7ca30eda1e304abddfd96a37a"
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        {
          "url": "https://git.kernel.org/stable/c/0a3011d47dbc92a33621861c423cb64833d7fe57"
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        {
          "url": "https://git.kernel.org/stable/c/2f62eda4d974c26bc595425eafd429067541f2c9"
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        {
          "url": "https://git.kernel.org/stable/c/85286e634ebbaf9c0fb1cdf580add2f33fc7628c"
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          "url": "https://git.kernel.org/stable/c/5a057f261539720165d03d85024da2b52e67f63d"
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          "url": "https://git.kernel.org/stable/c/0771bcbe2f6e5d5f263cf466efe571d2754a46da"
        },
        {
          "url": "https://git.kernel.org/stable/c/cdb4feab2f39e75a66239e3a112beced279612a8"
        },
        {
          "url": "https://git.kernel.org/stable/c/0f73628e9da1ee39daf5f188190cdbaee5e0c98c"
        }
      ],
      "title": "thunderbolt: Do not double dequeue a configuration request",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38174",
    "datePublished": "2025-07-04T10:39:55.732Z",
    "dateReserved": "2025-04-16T04:51:23.991Z",
    "dateUpdated": "2025-07-28T04:14:16.356Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38174\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-04T11:15:51.283\",\"lastModified\":\"2025-07-08T16:18:53.607\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nthunderbolt: Do not double dequeue a configuration request\\n\\nSome of our devices crash in tb_cfg_request_dequeue():\\n\\n general protection fault, probably for non-canonical address 0xdead000000000122\\n\\n CPU: 6 PID: 91007 Comm: kworker/6:2 Tainted: G U W 6.6.65\\n RIP: 0010:tb_cfg_request_dequeue+0x2d/0xa0\\n Call Trace:\\n \u003cTASK\u003e\\n ? tb_cfg_request_dequeue+0x2d/0xa0\\n tb_cfg_request_work+0x33/0x80\\n worker_thread+0x386/0x8f0\\n kthread+0xed/0x110\\n ret_from_fork+0x38/0x50\\n ret_from_fork_asm+0x1b/0x30\\n\\nThe circumstances are unclear, however, the theory is that\\ntb_cfg_request_work() can be scheduled twice for a request:\\nfirst time via frame.callback from ring_work() and second\\ntime from tb_cfg_request().  Both times kworkers will execute\\ntb_cfg_request_dequeue(), which results in double list_del()\\nfrom the ctl-\u003erequest_queue (the list poison deference hints\\nat it: 0xdead000000000122).\\n\\nDo not dequeue requests that don\u0027t have TB_CFG_REQUEST_ACTIVE\\nbit set.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: thunderbolt: no desencolar dos veces una solicitud de configuraci\u00f3n Algunos de nuestros dispositivos fallan en tb_cfg_request_dequeue(): error de protecci\u00f3n general, probablemente para la direcci\u00f3n no can\u00f3nica 0xdead000000000122 CPU: 6 PID: 91007 Comm: kworker/6:2 Tainted: GUW 6.6.65 RIP: 0010:tb_cfg_request_dequeue+0x2d/0xa0 Rastreo de llamadas:  ? tb_cfg_request_dequeue+0x2d/0xa0 tb_cfg_request_work+0x33/0x80 worker_thread+0x386/0x8f0 kthread+0xed/0x110 ret_from_fork+0x38/0x50 ret_from_fork_asm+0x1b/0x30 Las circunstancias no est\u00e1n claras, sin embargo, la teor\u00eda es que tb_cfg_request_work() se puede programar dos veces para una solicitud: la primera vez a trav\u00e9s de frame.callback desde ring_work() y la segunda vez desde tb_cfg_request(). En ambas ocasiones, los kworkers ejecutar\u00e1n tb_cfg_request_dequeue(), lo que resulta en un doble list_del() desde ctl-\u0026gt;request_queue (la deferencia de envenenamiento de lista lo insin\u00faa: 0xdead000000000122). No saque de la cola las solicitudes que no tengan establecido el bit TB_CFG_REQUEST_ACTIVE.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0771bcbe2f6e5d5f263cf466efe571d2754a46da\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/0a3011d47dbc92a33621861c423cb64833d7fe57\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/0f73628e9da1ee39daf5f188190cdbaee5e0c98c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2f62eda4d974c26bc595425eafd429067541f2c9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5a057f261539720165d03d85024da2b52e67f63d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/85286e634ebbaf9c0fb1cdf580add2f33fc7628c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cdb4feab2f39e75a66239e3a112beced279612a8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e49e994cd83705f7ca30eda1e304abddfd96a37a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/eb2d5e794fb966b3ef8bde99eb8561446a53509f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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