CVE-2026-98498 (GCVE-0-2026-98498)
Vulnerability from cvelistv5
Published
2026-10-18 15:16
Modified
2026-10-19 09:20
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix rev_entry reference leak in mlx5_tc_ct_shared_counter_get() When the reverse entry is found but its counter is already being released, refcount_inc_not_zero() fails and the reference taken by mlx5_tc_ct_entry_get() is never dropped before falling through to create_counter. Drop it so the reverse entry is not kept alive forever by a shared counter lookup that did not use it.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1edae2335adfa7006853e8b427f0c7c3f46b51dd
Version: 1edae2335adfa7006853e8b427f0c7c3f46b51dd
Version: 1edae2335adfa7006853e8b427f0c7c3f46b51dd
Version: 1edae2335adfa7006853e8b427f0c7c3f46b51dd
Version: 1edae2335adfa7006853e8b427f0c7c3f46b51dd
Version: 1edae2335adfa7006853e8b427f0c7c3f46b51dd
Version: 1edae2335adfa7006853e8b427f0c7c3f46b51dd
Version: 1edae2335adfa7006853e8b427f0c7c3f46b51dd
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c"
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              "version": "5.10"
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              "version": "0",
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      "cpeApplicability": [
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: Fix rev_entry reference leak in mlx5_tc_ct_shared_counter_get()\n\nWhen the reverse entry is found but its counter is already being\nreleased, refcount_inc_not_zero() fails and the reference taken by\nmlx5_tc_ct_entry_get() is never dropped before falling through to\ncreate_counter.  Drop it so the reverse entry is not kept alive forever\nby a shared counter lookup that did not use it."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:20:36.589Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/598daa5f95883f881a54967da40ce0fdfc1fdaa8"
        },
        {
          "url": "https://git.kernel.org/stable/c/79a3257280a335bbebbcd10d3895e8468bdcd6ae"
        },
        {
          "url": "https://git.kernel.org/stable/c/c45c997d0c27359b502587897f775c5a277f0bd4"
        },
        {
          "url": "https://git.kernel.org/stable/c/288721013605b4e0304e10f6a087b77f71cfad11"
        },
        {
          "url": "https://git.kernel.org/stable/c/60eab87d0a798070bf5a856b1d9e5785ce92da53"
        },
        {
          "url": "https://git.kernel.org/stable/c/99d8dc51663747078c031acac32edc6d90c8f1f7"
        },
        {
          "url": "https://git.kernel.org/stable/c/1f13989a0704bd98cab09f9bee63e2c8a98ad4dd"
        },
        {
          "url": "https://git.kernel.org/stable/c/0bf6bb567f0edaa771e7dd208ef98da50e6a4485"
        }
      ],
      "title": "net/mlx5: Fix rev_entry reference leak in mlx5_tc_ct_shared_counter_get()",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98498",
    "datePublished": "2026-10-18T15:16:30.116Z",
    "dateReserved": "2026-09-25T10:25:14.353Z",
    "dateUpdated": "2026-10-19T09:20:36.589Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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