fkie_cve-2025-37884
Vulnerability from fkie_nvd
Published
2025-05-09 07:16
Modified
2025-11-12 19:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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/255cbc9db7067a83713fd2f4b31034ddd266549aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/45286680b385f2592db3003554872388dee66d68Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4580f4e0ebdf8dc8d506ae926b88510395a0c1d1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b5a528a34e1f613565115a7a6016862ccbfcb9acPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c5c833f6375f8ecf9254dd27946c927c7d645421Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/05/msg00045.htmlMailing List, Third Party Advisory
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
debian debian_linux 11.0


To clipboard 

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      "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."
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      "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": "2025-11-12T19:30:02.950",
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          "attackVector": "LOCAL",
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          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
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  "published": "2025-05-09T07:16:09.727",
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}


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