{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "d4e4257afa6ed5205eda993180401fc2c20e4b60"
            },
            {
              "fixed": "5592a207e158b738d9c1d27f208dbbea13ae7606"
            },
            {
              "fixed": "dc9a1cda2e46d0254730a6f93cfe48532895f33c"
            },
            {
              "fixed": "257321a1c036da417f5d9c47b95c7e58f62bf263"
            },
            {
              "fixed": "6920e62be4c969a68ce4ebc59da68c6cbc9512e5"
            },
            {
              "fixed": "ddb44baed257560f192b145ed36cf8c0a412de47"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.6.0"
            },
            {
              "fixed": "6.6.148"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.97"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72089.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/ivpu: Reject firmware log with size smaller than header\n\nfw_log_from_bo() validates the tracing buffer header_size and that the\nlog fits within the BO, but never checks that log-\u003esize is at least\nlog-\u003eheader_size. fw_log_print_buffer() then computes:\n\n  u32 data_size = log-\u003esize - log-\u003eheader_size;\n\nwhich underflows to a near-U32_MAX value when firmware reports a log whose\nsize is smaller than its header. That huge data_size defeats the\nlog_start/log_end bounds clamps added by commit dd1311bcf0e6 (\"accel/ivpu:\nAdd bounds checks for firmware log indices\"), so fw_log_print_lines() reads\nfar past the small real data region of the BO. A size of 0 also makes\nfw_log_from_bo() advance the offset by 0, causing the callers to loop\nforever on the same header.\n\nReject logs whose size is smaller than the header (which also rejects\nsize == 0).",
  "id": "CVE-2026-72089",
  "modified": "2026-08-18T03:31:18.737649699Z",
  "published": "2026-08-15T05:52:36.800Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/257321a1c036da417f5d9c47b95c7e58f62bf263"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5592a207e158b738d9c1d27f208dbbea13ae7606"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6920e62be4c969a68ce4ebc59da68c6cbc9512e5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dc9a1cda2e46d0254730a6f93cfe48532895f33c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ddb44baed257560f192b145ed36cf8c0a412de47"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72089.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72089"
    },
    {
      "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": "accel/ivpu: Reject firmware log with size smaller than header"
}