{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "bce761d757452ba5eb77e11fecc37a04b67494e7"
            },
            {
              "fixed": "75b37b8369778b69ce9738d1c97685a1615cb252"
            },
            {
              "fixed": "dae8dda341d2d9034a90d59e8a7d502e1263813f"
            }
          ],
          "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": "7.2.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98032.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix subbuf resize races with trace_pipe_raw readers\n\nConcurrent subbuffer resizes may crash trace_pipe_raw readers or leak\nuninitialized memory to userspace due to stale size values.\n\nModify ring_buffer_alloc_read_page() to handle the resizing of an\nexisting buffer_data_read_page if necessary and add a new\nring_buffer_read_page_size(). This new function enables ring-buffer\nbuffer_data_read_page users to not call the racy\nring_buffer_subbuf_size_get(). This makes the spare_size member of\nftrace_buffer_info redundant.\n\nFinally, handle buffer_data_read_page/reader_page order discrepancy in\nring_buffer_read_page(). On a mismatch simply copy manually the data to\nthe buffer_data_read_page.",
  "id": "CVE-2026-98032",
  "modified": "2026-09-27T03:30:21.779026532Z",
  "published": "2026-09-25T10:23:48.169Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/75b37b8369778b69ce9738d1c97685a1615cb252"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dae8dda341d2d9034a90d59e8a7d502e1263813f"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98032.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98032"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "tracing: Fix subbuf resize races with trace_pipe_raw readers"
}