CVE-2026-93109 (GCVE-0-2026-93109)
Vulnerability from cvelistv5
Published
2026-09-17 16:11
Modified
2026-10-19 09:05
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Drain RCU callbacks during module teardown devx_free_subscription() can remain queued after the last DevX event file drops its module reference or an auxiliary driver detaches its devices. mlx5_ib can then unload before the callback runs. Registration error unwind has the same risk because driver registration can attach existing devices before failing. Wait after all drivers have stopped.
References
Impacted products
Vendor Product Version
Linux Linux Version: 6898d1c661d79f4707d8ba82991b2195822780ca
Version: 6898d1c661d79f4707d8ba82991b2195822780ca
Version: 6898d1c661d79f4707d8ba82991b2195822780ca
Version: 6898d1c661d79f4707d8ba82991b2195822780ca
Version: 6898d1c661d79f4707d8ba82991b2195822780ca
Version: 6898d1c661d79f4707d8ba82991b2195822780ca
Version: 6898d1c661d79f4707d8ba82991b2195822780ca
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{
  "containers": {
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          "defaultStatus": "unaffected",
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          "programFiles": [
            "drivers/infiniband/hw/mlx5/main.c"
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              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
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          "nodes": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Drain RCU callbacks during module teardown\n\ndevx_free_subscription() can remain queued after the last DevX event file\ndrops its module reference or an auxiliary driver detaches its devices.\nmlx5_ib can then unload before the callback runs.\n\nRegistration error unwind has the same risk because driver registration\ncan attach existing devices before failing. Wait after all drivers have\nstopped."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:05:41.900Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ca428e597f12b278bf158356e34641e6386cfa82"
        },
        {
          "url": "https://git.kernel.org/stable/c/59d60e04afd012f07e996d2e34cb90a4ec6f5cff"
        },
        {
          "url": "https://git.kernel.org/stable/c/2f946e7839f677fa14574b6babad14b37ae0bbbe"
        },
        {
          "url": "https://git.kernel.org/stable/c/4be7810ba70291abb2f68cc6db0ae1b93ee9c76a"
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        {
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          "url": "https://git.kernel.org/stable/c/4664368b9bd9d5d79ebad24056b98c34b9fed20f"
        },
        {
          "url": "https://git.kernel.org/stable/c/e37cdd75f8d61c1123d324ae5667ac3da562290e"
        }
      ],
      "title": "RDMA/mlx5: Drain RCU callbacks during module teardown",
      "x_generator": {
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  },
  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93109",
    "datePublished": "2026-09-17T16:11:19.135Z",
    "dateReserved": "2026-09-17T16:02:15.085Z",
    "dateUpdated": "2026-10-19T09:05:41.900Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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