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net/mlx5: Fix rev_entry reference leak in mlx5_tc_ct_shared_counter_get()

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-98498

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-98498

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "1edae2335adfa7006853e8b427f0c7c3f46b51dd",
        "lessThan": "598daa5f95883f881a54967da40ce0fdfc1fdaa8",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1edae2335adfa7006853e8b427f0c7c3f46b51dd",
        "lessThan": "79a3257280a335bbebbcd10d3895e8468bdcd6ae",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1edae2335adfa7006853e8b427f0c7c3f46b51dd",
        "lessThan": "c45c997d0c27359b502587897f775c5a277f0bd4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1edae2335adfa7006853e8b427f0c7c3f46b51dd",
        "lessThan": "288721013605b4e0304e10f6a087b77f71cfad11",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1edae2335adfa7006853e8b427f0c7c3f46b51dd",
        "lessThan": "60eab87d0a798070bf5a856b1d9e5785ce92da53",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1edae2335adfa7006853e8b427f0c7c3f46b51dd",
        "lessThan": "99d8dc51663747078c031acac32edc6d90c8f1f7",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1edae2335adfa7006853e8b427f0c7c3f46b51dd",
        "lessThan": "1f13989a0704bd98cab09f9bee63e2c8a98ad4dd",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1edae2335adfa7006853e8b427f0c7c3f46b51dd",
        "lessThan": "0bf6bb567f0edaa771e7dd208ef98da50e6a4485",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.10"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.10",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.271",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.222",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.189",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.158",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.112",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.55",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.9",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-98498

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#38537 · Revision 1
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Publisher date
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