{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-71180",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-71180"
  ],
  "published": "2026-01-31T11:39:48Z",
  "summary": "counter: interrupt-cnt: Drop IRQF_NO_THREAD flag",
  "details": "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(&counter->events_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.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.161",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-71180"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ef668c9a2261ec9287faba6e6ef05a98b391aa2b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/51d2e5d6491447258cb39ff1deb93df15d3c23cb"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1c5a3175aecf82cd86dfcbef2a23e8b26d8d8e7c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/49a66829dd3653695e60d7cae13521d131362fcd"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/425886b1f8304621b3f16632b274357067d5f13f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/23f9485510c338476b9735d516c1d4aacb810d46"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}