FKIE_CVE-2025-71180

Vulnerability from fkie_nvd - Published: 2026-01-31 12:16 - Updated: 2026-03-25 19:45
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: counter: interrupt-cnt: Drop IRQF_NO_THREAD flag An IRQ handler can either be IRQF_NO_THREAD or acquire spinlock_t, as CONFIG_PROVE_RAW_LOCK_NESTING warns: ============================= [ BUG: Invalid wait context ] 6.18.0-rc1+git... #1 ----------------------------- some-user-space-process/1251 is trying to lock: (&counter->events_list_lock){....}-{3:3}, at: counter_push_event [counter] other info that might help us debug this: context-{2:2} no locks held by some-user-space-process/.... stack backtrace: CPU: 0 UID: 0 PID: 1251 Comm: some-user-space-process 6.18.0-rc1+git... #1 PREEMPT Call trace: show_stack (C) dump_stack_lvl dump_stack __lock_acquire lock_acquire _raw_spin_lock_irqsave counter_push_event [counter] interrupt_cnt_isr [interrupt_cnt] __handle_irq_event_percpu handle_irq_event handle_simple_irq handle_irq_desc generic_handle_domain_irq gpio_irq_handler handle_irq_desc generic_handle_domain_irq gic_handle_irq call_on_irq_stack do_interrupt_handler el0_interrupt __el0_irq_handler_common el0t_64_irq_handler el0t_64_irq ... and Sebastian correctly points out. Remove IRQF_NO_THREAD as an alternative to switching to raw_spinlock_t, because the latter would limit all potential nested locks to raw_spinlock_t only.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1c5a3175aecf82cd86dfcbef2a23e8b26d8d8e7cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/23f9485510c338476b9735d516c1d4aacb810d46Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/425886b1f8304621b3f16632b274357067d5f13fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/49a66829dd3653695e60d7cae13521d131362fcdPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/51d2e5d6491447258cb39ff1deb93df15d3c23cbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ef668c9a2261ec9287faba6e6ef05a98b391aa2bPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.13
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
To clipboard 

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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncounter: interrupt-cnt: Drop IRQF_NO_THREAD flag\n\nAn IRQ handler can either be IRQF_NO_THREAD or acquire spinlock_t, as\nCONFIG_PROVE_RAW_LOCK_NESTING warns:\n=============================\n[ BUG: Invalid wait context ]\n6.18.0-rc1+git... #1\n-----------------------------\nsome-user-space-process/1251 is trying to lock:\n(\u0026counter-\u003eevents_list_lock){....}-{3:3}, at: counter_push_event [counter]\nother info that might help us debug this:\ncontext-{2:2}\nno locks held by some-user-space-process/....\nstack backtrace:\nCPU: 0 UID: 0 PID: 1251 Comm: some-user-space-process 6.18.0-rc1+git... #1 PREEMPT\nCall trace:\n show_stack (C)\n dump_stack_lvl\n dump_stack\n __lock_acquire\n lock_acquire\n _raw_spin_lock_irqsave\n counter_push_event [counter]\n interrupt_cnt_isr [interrupt_cnt]\n __handle_irq_event_percpu\n handle_irq_event\n handle_simple_irq\n handle_irq_desc\n generic_handle_domain_irq\n gpio_irq_handler\n handle_irq_desc\n generic_handle_domain_irq\n gic_handle_irq\n call_on_irq_stack\n do_interrupt_handler\n el0_interrupt\n __el0_irq_handler_common\n el0t_64_irq_handler\n el0t_64_irq\n\n... and Sebastian correctly points out. Remove IRQF_NO_THREAD as an\nalternative to switching to raw_spinlock_t, because the latter would limit\nall potential nested locks to raw_spinlock_t only."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ncounter: interrupt-cnt: Eliminar el flag IRQF_NO_THREAD\n\nUn manejador de IRQ puede ser IRQF_NO_THREAD o adquirir un spinlock_t, como advierte CONFIG_PROVE_RAW_LOCK_NESTING:\n=============================\n[ BUG: Contexto de espera inv\u00e1lido ]\n6.18.0-rc1+git... #1\n-----------------------------\nsome-user-space-process/1251 est\u00e1 intentando bloquear:\n(\u0026amp;counter-\u0026gt;events_list_lock){....}-{3:3}, at: counter_push_event [counter]\notra informaci\u00f3n que podr\u00eda ayudarnos a depurar esto:\ncontext-{2:2}\nning\u00fan bloqueo mantenido por some-user-space-process/....\nrastreo de pila:\nCPU: 0 UID: 0 PID: 1251 Comm: some-user-space-process 6.18.0-rc1+git... #1 PREEMPT\nTraza de llamada:\n show_stack (C)\n dump_stack_lvl\n dump_stack\n __lock_acquire\n lock_acquire\n _raw_spin_lock_irqsave\n counter_push_event [counter]\n interrupt_cnt_isr [interrupt_cnt]\n __handle_irq_event_percpu\n handle_irq_event\n handle_simple_irq\n handle_irq_desc\n generic_handle_domain_irq\n gpio_irq_handler\n handle_irq_desc\n generic_handle_domain_irq\n gic_handle_irq\n call_on_irq_stack\n do_interrupt_handler\n el0_interrupt\n __el0_irq_handler_common\n el0t_64_irq_handler\n el0t_64_irq\n\n... y Sebastian se\u00f1ala correctamente. Eliminar IRQF_NO_THREAD como alternativa a cambiar a raw_spinlock_t, porque esto \u00faltimo limitar\u00eda todos los posibles bloqueos anidados solo a raw_spinlock_t."
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  "id": "CVE-2025-71180",
  "lastModified": "2026-03-25T19:45:29.937",
  "metrics": {
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          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
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          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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  "published": "2026-01-31T12:16:02.997",
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