CVE-2025-37884 (GCVE-0-2025-37884)
Vulnerability from cvelistv5
Published
2025-05-09 06:45
Modified
2025-05-26 05:23
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix deadlock between rcu_tasks_trace and event_mutex. Fix the following deadlock: CPU A _free_event() perf_kprobe_destroy() mutex_lock(&event_mutex) perf_trace_event_unreg() synchronize_rcu_tasks_trace() There are several paths where _free_event() grabs event_mutex and calls sync_rcu_tasks_trace. Above is one such case. CPU B bpf_prog_test_run_syscall() rcu_read_lock_trace() bpf_prog_run_pin_on_cpu() bpf_prog_load() bpf_tracing_func_proto() trace_set_clr_event() mutex_lock(&event_mutex) Delegate trace_set_clr_event() to workqueue to avoid such lock dependency.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/trace/bpf_trace.c"
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          "vendor": "Linux",
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          "vendor": "Linux",
          "versions": [
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              "status": "unaffected",
              "version": "6.1.136",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.6.89",
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              "status": "unaffected",
              "version": "6.12.26",
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              "status": "unaffected",
              "version": "6.14.5",
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      ],
      "cpeApplicability": [
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          "nodes": [
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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\nbpf: Fix deadlock between rcu_tasks_trace and event_mutex.\n\nFix the following deadlock:\nCPU A\n_free_event()\n  perf_kprobe_destroy()\n    mutex_lock(\u0026event_mutex)\n      perf_trace_event_unreg()\n        synchronize_rcu_tasks_trace()\n\nThere are several paths where _free_event() grabs event_mutex\nand calls sync_rcu_tasks_trace. Above is one such case.\n\nCPU B\nbpf_prog_test_run_syscall()\n  rcu_read_lock_trace()\n    bpf_prog_run_pin_on_cpu()\n      bpf_prog_load()\n        bpf_tracing_func_proto()\n          trace_set_clr_event()\n            mutex_lock(\u0026event_mutex)\n\nDelegate trace_set_clr_event() to workqueue to avoid\nsuch lock dependency."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:23:00.341Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/255cbc9db7067a83713fd2f4b31034ddd266549a"
        },
        {
          "url": "https://git.kernel.org/stable/c/b5a528a34e1f613565115a7a6016862ccbfcb9ac"
        },
        {
          "url": "https://git.kernel.org/stable/c/c5c833f6375f8ecf9254dd27946c927c7d645421"
        },
        {
          "url": "https://git.kernel.org/stable/c/45286680b385f2592db3003554872388dee66d68"
        },
        {
          "url": "https://git.kernel.org/stable/c/4580f4e0ebdf8dc8d506ae926b88510395a0c1d1"
        }
      ],
      "title": "bpf: Fix deadlock between rcu_tasks_trace and event_mutex.",
      "x_generator": {
        "engine": "bippy-1.2.0"
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-37884",
    "datePublished": "2025-05-09T06:45:47.462Z",
    "dateReserved": "2025-04-16T04:51:23.962Z",
    "dateUpdated": "2025-05-26T05:23:00.341Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-37884\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-09T07:16:09.727\",\"lastModified\":\"2025-05-12T17:32:32.760\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbpf: Fix deadlock between rcu_tasks_trace and event_mutex.\\n\\nFix the following deadlock:\\nCPU A\\n_free_event()\\n  perf_kprobe_destroy()\\n    mutex_lock(\u0026event_mutex)\\n      perf_trace_event_unreg()\\n        synchronize_rcu_tasks_trace()\\n\\nThere are several paths where _free_event() grabs event_mutex\\nand calls sync_rcu_tasks_trace. Above is one such case.\\n\\nCPU B\\nbpf_prog_test_run_syscall()\\n  rcu_read_lock_trace()\\n    bpf_prog_run_pin_on_cpu()\\n      bpf_prog_load()\\n        bpf_tracing_func_proto()\\n          trace_set_clr_event()\\n            mutex_lock(\u0026event_mutex)\\n\\nDelegate trace_set_clr_event() to workqueue to avoid\\nsuch lock dependency.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: Se corrige el bloqueo entre rcu_tasks_trace y event_mutex. Se corrige el siguiente bloqueo: CPU A _free_event() perf_kprobe_destroy() mutex_lock(\u0026amp;event_mutex) perf_trace_event_unreg() synchronize_rcu_tasks_trace() There are several paths where _free_event() grabs event_mutex and calls sync_rcu_tasks_trace. Above is one such case. CPU B bpf_prog_test_run_syscall() rcu_read_lock_trace() bpf_prog_run_pin_on_cpu() bpf_prog_load() bpf_tracing_func_proto() trace_set_clr_event() mutex_lock(\u0026amp;event_mutex) Delegue trace_set_clr_event() a workqueue para evitar dicha dependencia de bloqueo.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/255cbc9db7067a83713fd2f4b31034ddd266549a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/45286680b385f2592db3003554872388dee66d68\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4580f4e0ebdf8dc8d506ae926b88510395a0c1d1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b5a528a34e1f613565115a7a6016862ccbfcb9ac\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c5c833f6375f8ecf9254dd27946c927c7d645421\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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