{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-21645",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-21645"
  ],
  "published": "2025-01-19T10:18:03Z",
  "summary": "platform/x86/amd/pmc: Only disable IRQ1 wakeup where i8042 actually enabled it",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86/amd/pmc: Only disable IRQ1 wakeup where i8042 actually enabled it\n\nWakeup for IRQ1 should be disabled only in cases where i8042 had\nactually enabled it, otherwise \"wake_depth\" for this IRQ will try to\ndrop below zero and there will be an unpleasant WARN() logged:\n\nkernel: atkbd serio0: Disabling IRQ1 wakeup source to avoid platform firmware bug\nkernel: ------------[ cut here ]------------\nkernel: Unbalanced IRQ 1 wake disable\nkernel: WARNING: CPU: 10 PID: 6431 at kernel/irq/manage.c:920 irq_set_irq_wake+0x147/0x1a0\n\nThe PMC driver uses DEFINE_SIMPLE_DEV_PM_OPS() to define its dev_pm_ops\nwhich sets amd_pmc_suspend_handler() to the .suspend, .freeze, and\n.poweroff handlers. i8042_pm_suspend(), however, is only set as\nthe .suspend handler.\n\nFix the issue by call PMC suspend handler only from the same set of\ndev_pm_ops handlers as i8042_pm_suspend(), which currently means just\nthe .suspend handler.\n\nTo reproduce this issue try hibernating (S4) the machine after a fresh boot\nwithout putting it into s2idle first.\n\n[ij: edited the commit message.]",
  "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": "6.1.140",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-21645"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ab47d72b736e78d3c2370b26e0bfc46eb0918391"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5cc621085e2b7a9b1905a98f8e5a86bb4aea2016"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b25778c87a6bce40c31e92364f08aa6240309e25"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/dd410d784402c5775f66faf8b624e85e41c38aaf"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-24T06:48:58Z"
  }
}