{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-89993",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-89993"
  ],
  "published": "2026-09-16T10:32:03Z",
  "summary": "dmaengine: dw-edma: Initialize IRQ data before requesting IRQs",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: dw-edma: Initialize IRQ data before requesting IRQs\n\ndw_edma_irq_request() passes struct dw_edma_irq to request_irq() before\ndw_edma_channel_setup() fills the back pointer. A shared interrupt can\ntherefore enter the handler with dw_irq->dw still NULL, leading to a\nNULL pointer dereference.\n\nSet the back pointer before installing each handler.",
  "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": "6.1.188",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-89993"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b86280b12ccf33b68b309b7cb0e4476894dfe77c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/07e50cef557def076418c67051a336e4c6bd50e1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/17ef63843c0fcbf1efdfbbfb0f5584a5ea2c91ba"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d232bc6cf4562132ef50644484dfd4b23a593295"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fac202d73e7a649b7d4010325c6c6dcd9334fe65"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d91fb6c0d10dad32929dc5c6850f89df34e1bfcd"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/647217abea849d3d45f8cb0b8ee5b78d50f26985"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-09-16T10:32:03Z"
  }
}