{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "918eb5c856f6ce4cf93b4b38e4b5e156905c5943"
            },
            {
              "fixed": "86197679b293f0601c3331d545f99a70a7780aa9"
            },
            {
              "fixed": "d4d05f55e9da646ec03adfa77260eb46f4163749"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.12.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90427.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/tegra241-cmdqv: Don't fall back to a freed smmu after devm_krealloc()\n\n__tegra241_cmdqv_probe() uses devm_krealloc() to grow @smmu into the larger\ntegra241_cmdqv, which frees the original @smmu once it relocates. A failure\nafter that returned NULL, and the caller then dereferenced the freed @smmu\non its fallback path.\n\nReturn an int and take @smmu by reference instead, then update *smmu to the\nreallocated pointer after devm_krealloc() succeeds, so the caller and its\nfallback path both use the live @smmu rather than the freed original.",
  "id": "CVE-2026-90427",
  "modified": "2026-09-20T11:30:54.925686457Z",
  "published": "2026-09-17T16:09:49.121Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/86197679b293f0601c3331d545f99a70a7780aa9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d4d05f55e9da646ec03adfa77260eb46f4163749"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90427.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90427"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "iommu/tegra241-cmdqv: Don't fall back to a freed smmu after devm_krealloc()"
}