{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "2718d91816eeed03c09c8abe872e45f59078768c"
            },
            {
              "fixed": "5516f1acfd07564361cf306cc90a8e513df0f096"
            },
            {
              "fixed": "6ae19dce3e8c13ae73590b3f4311abe9f96bbae8"
            },
            {
              "fixed": "8321b093fa6c297b80586460ce6914d9655df170"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.10.0"
            },
            {
              "fixed": "6.18.51"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89826.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: harden firmware build-info bounds checks\n\npanthor_fw_read_build_info() checks whether the metadata range fits in the\nfirmware image with hdr.meta_start + hdr.meta_size. Both fields are u32, so\nthe addition can wrap and let an out-of-bounds range pass validation.\n\nThe function also reads the \"git_sha: \" prefix without first checking that\nthe metadata is long enough, and meta_size == 0 can underflow the NULL\nterminator index.\n\nUse subtraction-based bounds checking and reject metadata that is too short\nto contain the expected prefix and trailing NULL byte.",
  "id": "CVE-2026-89826",
  "modified": "2026-09-18T03:31:01.995925276Z",
  "published": "2026-09-16T10:30:58.435Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5516f1acfd07564361cf306cc90a8e513df0f096"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6ae19dce3e8c13ae73590b3f4311abe9f96bbae8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8321b093fa6c297b80586460ce6914d9655df170"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89826.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89826"
    },
    {
      "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:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "drm/panthor: harden firmware build-info bounds checks"
}