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FKIE_CVE-2026-89993

Vulnerability from fkie_nvd - Published: 2026-09-16 11:17 - Updated: 2026-09-16 11:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: dmaengine: dw-edma: Initialize IRQ data before requesting IRQs dw_edma_irq_request() passes struct dw_edma_irq to request_irq() before dw_edma_channel_setup() fills the back pointer. A shared interrupt can therefore enter the handler with dw_irq->dw still NULL, leading to a NULL pointer dereference. Set the back pointer before installing each handler.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/07e50cef557def076418c67051a336e4c6bd50e1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/17ef63843c0fcbf1efdfbbfb0f5584a5ea2c91ba
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/647217abea849d3d45f8cb0b8ee5b78d50f26985
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b86280b12ccf33b68b309b7cb0e4476894dfe77c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d232bc6cf4562132ef50644484dfd4b23a593295
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d91fb6c0d10dad32929dc5c6850f89df34e1bfcd
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fac202d73e7a649b7d4010325c6c6dcd9334fe65
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/dma/dw-edma/dw-edma-core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b86280b12ccf33b68b309b7cb0e4476894dfe77c",
              "status": "affected",
              "version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
              "versionType": "git"
            },
            {
              "lessThan": "07e50cef557def076418c67051a336e4c6bd50e1",
              "status": "affected",
              "version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
              "versionType": "git"
            },
            {
              "lessThan": "17ef63843c0fcbf1efdfbbfb0f5584a5ea2c91ba",
              "status": "affected",
              "version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
              "versionType": "git"
            },
            {
              "lessThan": "d232bc6cf4562132ef50644484dfd4b23a593295",
              "status": "affected",
              "version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
              "versionType": "git"
            },
            {
              "lessThan": "fac202d73e7a649b7d4010325c6c6dcd9334fe65",
              "status": "affected",
              "version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
              "versionType": "git"
            },
            {
              "lessThan": "d91fb6c0d10dad32929dc5c6850f89df34e1bfcd",
              "status": "affected",
              "version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
              "versionType": "git"
            },
            {
              "lessThan": "647217abea849d3d45f8cb0b8ee5b78d50f26985",
              "status": "affected",
              "version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/dma/dw-edma/dw-edma-core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.3"
            },
            {
              "lessThan": "5.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.51",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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-\u003edw still NULL, leading to a\nNULL pointer dereference.\n\nSet the back pointer before installing each handler."
    }
  ],
  "id": "CVE-2026-89993",
  "lastModified": "2026-09-16T11:17:10.470",
  "metrics": {},
  "published": "2026-09-16T11:17:10.470",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/07e50cef557def076418c67051a336e4c6bd50e1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/17ef63843c0fcbf1efdfbbfb0f5584a5ea2c91ba"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/647217abea849d3d45f8cb0b8ee5b78d50f26985"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b86280b12ccf33b68b309b7cb0e4476894dfe77c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d232bc6cf4562132ef50644484dfd4b23a593295"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d91fb6c0d10dad32929dc5c6850f89df34e1bfcd"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fac202d73e7a649b7d4010325c6c6dcd9334fe65"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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