← Back to CVE Explorer

CVE-2026-89594

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: hsi: omap_ssi_core: fix missing DMA mask setup for SSI controller device The OMAP SSI driver uses a synthetic HSI controller device allocated via hsi_alloc_controller(), which does not go through the normal OF/platform device initialization path. As a result, the embedded struct device does not have a DMA mask initialized by default. After recent DMA API hardening changes, dma_map_sg() and related helpers now require a valid dma_mask to be present, otherwise the driver may crash or trigger warnings when attempting DMA mapping operations. Fix this by explicitly initializing the DMA mask for the SSI controller device and setting a 32-bit DMA mask, which matches the hardware capabilities.

Severity
HIGH
CVSS score
7.8 (v3.1)
Vulnerability status
Received
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-09-11 20:19:44.040000
Last modified
2026-10-19 09:17:55.700000
View original CVE JSON 
{
  "id": "CVE-2026-89594",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-09-11T20:19:44.040",
  "lastModified": "2026-10-19T09:17:55.700",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhsi: omap_ssi_core: fix missing DMA mask setup for SSI controller device\n\nThe OMAP SSI driver uses a synthetic HSI controller device allocated via\nhsi_alloc_controller(), which does not go through the normal OF/platform\ndevice initialization path.\n\nAs a result, the embedded struct device does not have a DMA mask\ninitialized by default.\n\nAfter recent DMA API hardening changes, dma_map_sg() and related helpers\nnow require a valid dma_mask to be present, otherwise the driver may\ncrash or trigger warnings when attempting DMA mapping operations.\n\nFix this by explicitly initializing the DMA mask for the SSI controller\ndevice and setting a 32-bit DMA mask, which matches the hardware\ncapabilities."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/hsi/controllers/omap_ssi_core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "f959dcd6ddfd29235030e8026471ac1b022ad2b0",
              "lessThan": "6a5426f56de98faf7886702f8720828bf346a48f",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "f959dcd6ddfd29235030e8026471ac1b022ad2b0",
              "lessThan": "a4beb841f84e0e6ad5ff3d114f43ad30165572dd",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "f959dcd6ddfd29235030e8026471ac1b022ad2b0",
              "lessThan": "9ecef057b7a7f165ce66eaf07cb4cf85d10ed9c7",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "f959dcd6ddfd29235030e8026471ac1b022ad2b0",
              "lessThan": "9963a65be2befff82b5f5a7cfcd7ac4aca081c0b",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "f959dcd6ddfd29235030e8026471ac1b022ad2b0",
              "lessThan": "e8d47e309c704df95816e7442f05947424d8b33f",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "f959dcd6ddfd29235030e8026471ac1b022ad2b0",
              "lessThan": "4e019e5e247bfe877fdf288f2d6ec1b4c850c7c6",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "f959dcd6ddfd29235030e8026471ac1b022ad2b0",
              "lessThan": "fbffbfdae55954213fea99c5c9856c48dc705019",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "f959dcd6ddfd29235030e8026471ac1b022ad2b0",
              "lessThan": "e81250ec6b69248b00d38c523dc6a13efaf38aab",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "4e57482e8440fac7137832629109730ea4b267aa",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "5.9.2",
              "lessThan": "5.10",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/hsi/controllers/omap_ssi_core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "5.10",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "5.10",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "5.10.270",
              "lessThanOrEqual": "5.10.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "5.15.221",
              "lessThanOrEqual": "5.15.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.188",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.157",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.109",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.50",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.4",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
    ]
  },
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/4e019e5e247bfe877fdf288f2d6ec1b4c850c7c6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6a5426f56de98faf7886702f8720828bf346a48f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9963a65be2befff82b5f5a7cfcd7ac4aca081c0b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9ecef057b7a7f165ce66eaf07cb4cf85d10ed9c7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a4beb841f84e0e6ad5ff3d114f43ad30165572dd",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e81250ec6b69248b00d38c523dc6a13efaf38aab",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e8d47e309c704df95816e7442f05947424d8b33f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/fbffbfdae55954213fea99c5c9856c48dc705019",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}