CVE-2026-98016 (GCVE-0-2026-98016)
Vulnerability from cvelistv5
Published
2026-09-25 10:23
Modified
2026-10-19 09:12
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix use-after-free race in sample_restore_put() Concurrent teardown of TC sample rules sharing the same restore context may re-read restore->count after dropping restore_lock. At that point another thread may already have completed cleanup and freed the restore object. Use the result of the refcount decrement while holding restore_lock to determine whether cleanup is needed.
References
Impacted products
Vendor Product Version
Linux Linux Version: 36a3196256bf3310e5e7142b0e61787f7a201abd
Version: 36a3196256bf3310e5e7142b0e61787f7a201abd
Version: 36a3196256bf3310e5e7142b0e61787f7a201abd
Version: 36a3196256bf3310e5e7142b0e61787f7a201abd
Version: 36a3196256bf3310e5e7142b0e61787f7a201abd
Version: 36a3196256bf3310e5e7142b0e61787f7a201abd
Version: 36a3196256bf3310e5e7142b0e61787f7a201abd
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.c"
          ],
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          "defaultStatus": "affected",
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "status": "affected",
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              "version": "0",
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
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              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Fix use-after-free race in sample_restore_put()\n\nConcurrent teardown of TC sample rules sharing the same restore\ncontext may re-read restore-\u003ecount after dropping restore_lock.\nAt that point another thread may already have completed cleanup and\nfreed the restore object.\n\nUse the result of the refcount decrement while holding restore_lock to\ndetermine whether cleanup is needed."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:12:21.604Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/cdf920e44cbbee1900c66f002fb50afee20977d4"
        },
        {
          "url": "https://git.kernel.org/stable/c/308e1cbb0d9712081f90860fe839ccb47bc196ee"
        },
        {
          "url": "https://git.kernel.org/stable/c/8267e46d14e847e80e0aebe366d348e8a484a619"
        },
        {
          "url": "https://git.kernel.org/stable/c/3efd1a1938cbb33c53b0d75e55b6c0fe2ebad79a"
        },
        {
          "url": "https://git.kernel.org/stable/c/72324da8eeca269db9196c2a555abf72eb0385c5"
        },
        {
          "url": "https://git.kernel.org/stable/c/1daecd76ab9e5f055fe3970462410ad1d40bd177"
        },
        {
          "url": "https://git.kernel.org/stable/c/af3aef0245abbab5e9f6302e7a7d6407187afb71"
        }
      ],
      "title": "net/mlx5e: Fix use-after-free race in sample_restore_put()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98016",
    "datePublished": "2026-09-25T10:23:38.316Z",
    "dateReserved": "2026-09-25T10:19:56.069Z",
    "dateUpdated": "2026-10-19T09:12:21.604Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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