fkie_cve-2025-37884
Vulnerability from fkie_nvd
Published
2025-05-09 07:16
Modified
2025-05-12 17:32
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/255cbc9db7067a83713fd2f4b31034ddd266549a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/45286680b385f2592db3003554872388dee66d68
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4580f4e0ebdf8dc8d506ae926b88510395a0c1d1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b5a528a34e1f613565115a7a6016862ccbfcb9ac
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c5c833f6375f8ecf9254dd27946c927c7d645421
Impacted products
Vendor Product Version


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{
  "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."
    }
  ],
  "id": "CVE-2025-37884",
  "lastModified": "2025-05-12T17:32:32.760",
  "metrics": {},
  "published": "2025-05-09T07:16:09.727",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "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"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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