{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "54be566317b6aece2389a95bb19ea209af9359be"
            },
            {
              "fixed": "431b10133113537660a6090a2856b0d74d1b06de"
            },
            {
              "fixed": "359e6b1168c9a62a7bd214ace476aaa2d57eebe8"
            },
            {
              "fixed": "63d2230e5076c12f93d2a1d1bff2fbbf6cf32f3c"
            },
            {
              "fixed": "b6505a4cea45dd92eb753581b1ad9b524b5fcc34"
            },
            {
              "fixed": "84be002b40d30c56a91873b236e2d9001bbee363"
            },
            {
              "fixed": "bc7934d0acd4fc1c7e5b7c68debdb4a991121628"
            },
            {
              "fixed": "0559b86611c35d342dd48542ea26a9e437046bf6"
            },
            {
              "fixed": "600411ea1f2443fdf5b1af9b6480f616d7aff9d0"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.2.0"
            },
            {
              "fixed": "5.10.267"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.218"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.185"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.154"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.106"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.46"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80562.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: ml-ioh: use raw_spinlock_t for the register lock\n\nioh_irq_type() is registered as the irq_chip .irq_set_type callback and\ntakes chip-\u003espinlock with spin_lock_irqsave().  This callback is reached\nfrom __setup_irq() -\u003e __irq_set_trigger() -\u003e chip-\u003eirq_set_type() while\nthe caller holds desc-\u003elock, a raw_spinlock_t, with hardirqs disabled.\nThat context is not sleepable, but on PREEMPT_RT a regular spinlock_t is\nan rtmutex-backed sleeping lock, so acquiring it there is invalid.\nioh_irq_enable() and ioh_irq_disable() take the same lock from the\n.irq_enable/.irq_disable callbacks, which are likewise invoked with\ndesc-\u003elock held.\n\nConvert the register lock to raw_spinlock_t.  The same lock also\nserializes the GPIO direction/value callbacks and the suspend/resume\nregister save/restore, and those critical sections only perform short\nsequences of MMIO register accesses (ioread32()/iowrite32()); the\n.irq_set_type callback additionally emits a dev_warn() on an unsupported\ntype.  None of these are sleepable operations, so keeping this register\nlock non-sleeping is appropriate for the irqchip callbacks and does not\nchange the GPIO-side locking contract.\n\nThis is the same fix as commit a02b8950d619 (\"gpio: pch: use\nraw_spinlock_t for the register lock\"); this driver shares the same\nstructure as gpio-pch.",
  "id": "CVE-2026-80562",
  "modified": "2026-08-28T03:30:23.283488628Z",
  "published": "2026-08-26T14:37:27.171Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0559b86611c35d342dd48542ea26a9e437046bf6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/359e6b1168c9a62a7bd214ace476aaa2d57eebe8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/431b10133113537660a6090a2856b0d74d1b06de"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/600411ea1f2443fdf5b1af9b6480f616d7aff9d0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/63d2230e5076c12f93d2a1d1bff2fbbf6cf32f3c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/84be002b40d30c56a91873b236e2d9001bbee363"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b6505a4cea45dd92eb753581b1ad9b524b5fcc34"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bc7934d0acd4fc1c7e5b7c68debdb4a991121628"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80562.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80562"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "gpio: ml-ioh: use raw_spinlock_t for the register lock"
}