{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "7901b2a1453e48c9defff2c97c67d3089bf4df7a"
            },
            {
              "fixed": "7090c0d29708ee305022d0ea7b37612b33242fa2"
            },
            {
              "fixed": "0e33587967b356519aa6f220b5b43c6976320397"
            },
            {
              "fixed": "1ddf7b6ffb8ebb22b92a184a9eaa76277ef0c7cd"
            },
            {
              "fixed": "820c4f15353efe9a9429ae86ccceeaf4e0e4e585"
            },
            {
              "fixed": "48eccc6caed4e62c0f199ab3a3772fa969cd3b2d"
            },
            {
              "fixed": "9e2e8b8cdfd37ae7c7a8a5c96c59e98a768731c4"
            },
            {
              "fixed": "2f18c5551aa97ca7f39dbb151c67c9053ccadc17"
            },
            {
              "fixed": "e561b35633f450ee607e87a6401d97f156a0cd54"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.12.0"
            },
            {
              "fixed": "5.10.261"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.96"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.39"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64500.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: lpc32xx: Initialize completion before requesting IRQ\n\nIn the report from Jaeyoung Chung:\n\n\"lpc32xx_adc_probe() in drivers/iio/adc/lpc32xx_adc.c registers its\ninterrupt handler with devm_request_irq() before it initializes\nst-\u003ecompletion with init_completion(). If an interrupt arrives after\ndevm_request_irq() and before init_completion(), the handler calls\ncomplete() on an uninitialized completion, causing a kernel panic.\n\nThe probe path, in lpc32xx_adc_probe():\n\n    iodev = devm_iio_device_alloc(\u0026pdev-\u003edev, sizeof(*st)); /* st kzalloc-zeroed */\n    ...\n    retval = devm_request_irq(\u0026pdev-\u003edev, irq, lpc32xx_adc_isr, 0,\n                              LPC32XXAD_NAME, st);           /* register handler */\n    ...\n    init_completion(\u0026st-\u003ecompletion);                       /* initialize completion */\n\nlpc32xx_adc_isr() calls complete():\n\n    complete(\u0026st-\u003ecompletion);\n\nIf the device raises an interrupt before init_completion() runs,\ncomplete() acquires the uninitialized wait.lock and walks the zeroed\ntask_list in swake_up_locked(). The zeroed task_list makes list_empty()\nreturn false, so swake_up_locked() dereferences a NULL list entry,\ntriggering a KASAN wild-memory-access.\"\n\nFix the chance of a spurious IRQ causing an uninitialized pointer\ndereference by moving init_completion() above devm_request_irq().",
  "id": "CVE-2026-64500",
  "modified": "2026-07-27T03:56:38.918326380Z",
  "published": "2026-07-25T08:51:56.053Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0e33587967b356519aa6f220b5b43c6976320397"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1ddf7b6ffb8ebb22b92a184a9eaa76277ef0c7cd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2f18c5551aa97ca7f39dbb151c67c9053ccadc17"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/48eccc6caed4e62c0f199ab3a3772fa969cd3b2d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7090c0d29708ee305022d0ea7b37612b33242fa2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/820c4f15353efe9a9429ae86ccceeaf4e0e4e585"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9e2e8b8cdfd37ae7c7a8a5c96c59e98a768731c4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e561b35633f450ee607e87a6401d97f156a0cd54"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64500.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64500"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "iio: adc: lpc32xx: Initialize completion before requesting IRQ"
}