CVE-2026-89502

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Free cpu_buffer::free_page with subbuf_order When sub-buffers use an order greater than 0, cpu_buffer->free_page is allocated with subbuf_order. Use the correct order for cpu_buffer->free_page.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-09-11 20:19:32.423000

Last modified

2026-10-19 09:17:44.410000

View original CVE JSON

{
  "id": "CVE-2026-89502",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-09-11T20:19:32.423",
  "lastModified": "2026-10-19T09:17:44.410",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nring-buffer: Free cpu_buffer::free_page with subbuf_order\n\nWhen sub-buffers use an order greater than 0, cpu_buffer->free_page is\nallocated with subbuf_order. Use the correct order for\ncpu_buffer->free_page."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "kernel/trace/ring_buffer.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "f9b94daa542a8d2532f0930f01cd9aec2d19621b",
              "lessThan": "77275ccea06eaf297e8e6ac3fc830cb72086379a",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "f9b94daa542a8d2532f0930f01cd9aec2d19621b",
              "lessThan": "8c1ecdcdea738efe0494af908f12c0ae3a97fffa",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "f9b94daa542a8d2532f0930f01cd9aec2d19621b",
              "lessThan": "81063bbb16c4fcf0136c9117d5e49d3621dd6a1e",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "f9b94daa542a8d2532f0930f01cd9aec2d19621b",
              "lessThan": "234b1a72e9706fe20c08c96f4374ec8e83b934cb",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "kernel/trace/ring_buffer.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6.8",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "6.8",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.109",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.50",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.4",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/234b1a72e9706fe20c08c96f4374ec8e83b934cb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/77275ccea06eaf297e8e6ac3fc830cb72086379a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/81063bbb16c4fcf0136c9117d5e49d3621dd6a1e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8c1ecdcdea738efe0494af908f12c0ae3a97fffa",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}