{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "f9b94daa542a8d2532f0930f01cd9aec2d19621b"
            },
            {
              "fixed": "7c620d89bae1a926ab7d626600285d3516c9f3c4"
            },
            {
              "fixed": "2e37f2bf111429fbfa4d985b12df3ba496ca70aa"
            },
            {
              "fixed": "3b3e0a6ee5bb3ac000f135beef26b2b7ed1a771a"
            },
            {
              "fixed": "6d014e44b68ddd43f71288d2a4dbb1a259869149"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.8.0"
            },
            {
              "fixed": "6.12.105"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.45"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74602.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nring-buffer: Initialise reader page order in rb_allocate_cpu_buffer()\n\nIn rb_allocate_cpu_buffer(), bpage-\u003eorder was omitted, leaving it as 0.\nThis is an issue for a ring-buffer with subbufs bigger than PAGE_SIZE if\nwhen freed: free_buffer_page() relies on this value. Align the value\nwith the actual allocation size (buffer::subbuf_order).",
  "id": "CVE-2026-74602",
  "modified": "2026-08-25T03:51:43.906457549Z",
  "published": "2026-08-22T15:31:50.811Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2e37f2bf111429fbfa4d985b12df3ba496ca70aa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3b3e0a6ee5bb3ac000f135beef26b2b7ed1a771a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d014e44b68ddd43f71288d2a4dbb1a259869149"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7c620d89bae1a926ab7d626600285d3516c9f3c4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74602.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74602"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "ring-buffer: Initialise reader page order in rb_allocate_cpu_buffer()"
}