{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  spi: oc-tiny: switch to managed controller allocation  The controller is allocated with the non-managed spi_alloc_host() while the interrupt is registered with devm_request_irq().  During removal, spi_bitbang_stop() only unregisters the controller; the subsequent spi_controller_put() then frees the controller together with its embedded driver-private devdata, which is the IRQ handler's dev_id.  The devm_request_irq() release action (free_irq()), which drains the handler, does not run until after .remove() returns.  A late or latched interrupt can therefore reach tiny_spi_irq() and dereference already-freed memory (e.g. hw-\u003ebase).  Switch to devm_spi_alloc_host() so that the devres LIFO order releases the controller only after free_irq() has drained the handler, and drop the now-redundant spi_controller_put() from .remove().  The probe error path is simplified to direct returns.  This issue was found by an in-house static analysis tool.",
  "id": "DEBIAN-CVE-2026-90433",
  "modified": "2026-09-18T04:47:32.737396159Z",
  "published": "2026-09-17T17:17:48.400Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-90433"
    }
  ],
  "upstream": [
    "CVE-2026-90433"
  ]
}