Vulnerability-Lookup

GHSA-R243-5F6V-4CPG

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-15 06:32

Details

In the Linux kernel, the following vulnerability has been resolved:

RDMA/hns: Fix log flood after cmd_mbox failure

hns_roce_cmd_mbox() is the command interface between driver and hardware. When hardware is abnormal, the unlimited error printings after hns_roce_cmd_mbox() failure will cause log flood and even system crash.

Replace ibdev_err() and ibdev_warn() with their ratelimited versions in the error handling path after hns_roce_cmd_mbox() (and its wrappers hns_roce_create_hw_ctx/hns_roce_destroy_hw_ctx) fails.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-74389"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:22:40Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hns: Fix log flood after cmd_mbox failure\n\nhns_roce_cmd_mbox() is the command interface between driver and\nhardware. When hardware is abnormal, the unlimited error printings\nafter hns_roce_cmd_mbox() failure will cause log flood and even\nsystem crash.\n\nReplace ibdev_err() and ibdev_warn() with their ratelimited versions\nin the error handling path after hns_roce_cmd_mbox() (and its wrappers\nhns_roce_create_hw_ctx/hns_roce_destroy_hw_ctx) fails.",
  "id": "GHSA-r243-5f6v-4cpg",
  "modified": "2026-08-15T06:32:32Z",
  "published": "2026-08-15T06:32:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74389"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/66f44ec974ab372e4e1ee9eac4245237c94e8f68"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7d9fbee252f84de3e6947a40eec01481c9d8afbb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bbd97d71e53e551890e4115ad9de46b5f2ac0858"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f3c9e84268e9fa613d40d6c138fb6969c35879b5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-74389 (GCVE-0-2026-74389)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:59 – Updated: 2026-08-17 05:18

Title

RDMA/hns: Fix log flood after cmd_mbox failure

Summary

In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix log flood after cmd_mbox failure hns_roce_cmd_mbox() is the command interface between driver and hardware. When hardware is abnormal, the unlimited error printings after hns_roce_cmd_mbox() failure will cause log flood and even system crash. Replace ibdev_err() and ibdev_warn() with their ratelimited versions in the error handling path after hns_roce_cmd_mbox() (and its wrappers hns_roce_create_hw_ctx/hns_roce_destroy_hw_ctx) fails.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/7d9fbee252f84de3e…
https://git.kernel.org/stable/c/66f44ec974ab372e4…
https://git.kernel.org/stable/c/f3c9e84268e9fa613…
https://git.kernel.org/stable/c/bbd97d71e53e55189…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 9a4435375cd151e07c0c38fa601b00115986091b , < 7d9fbee252f84de3e6947a40eec01481c9d8afbb (git) Affected: 9a4435375cd151e07c0c38fa601b00115986091b , < 66f44ec974ab372e4e1ee9eac4245237c94e8f68 (git) Affected: 9a4435375cd151e07c0c38fa601b00115986091b , < f3c9e84268e9fa613d40d6c138fb6969c35879b5 (git) Affected: 9a4435375cd151e07c0c38fa601b00115986091b , < bbd97d71e53e551890e4115ad9de46b5f2ac0858 (git)
Linux	Linux	Affected: 4.9 Unaffected: 0 , < 4.9 (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/hns/hns_roce_cq.c",
            "drivers/infiniband/hw/hns/hns_roce_hw_v2.c",
            "drivers/infiniband/hw/hns/hns_roce_mr.c",
            "drivers/infiniband/hw/hns/hns_roce_srq.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7d9fbee252f84de3e6947a40eec01481c9d8afbb",
              "status": "affected",
              "version": "9a4435375cd151e07c0c38fa601b00115986091b",
              "versionType": "git"
            },
            {
              "lessThan": "66f44ec974ab372e4e1ee9eac4245237c94e8f68",
              "status": "affected",
              "version": "9a4435375cd151e07c0c38fa601b00115986091b",
              "versionType": "git"
            },
            {
              "lessThan": "f3c9e84268e9fa613d40d6c138fb6969c35879b5",
              "status": "affected",
              "version": "9a4435375cd151e07c0c38fa601b00115986091b",
              "versionType": "git"
            },
            {
              "lessThan": "bbd97d71e53e551890e4115ad9de46b5f2ac0858",
              "status": "affected",
              "version": "9a4435375cd151e07c0c38fa601b00115986091b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/hns/hns_roce_cq.c",
            "drivers/infiniband/hw/hns/hns_roce_hw_v2.c",
            "drivers/infiniband/hw/hns/hns_roce_mr.c",
            "drivers/infiniband/hw/hns/hns_roce_srq.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.9"
            },
            {
              "lessThan": "4.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "4.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "4.9",
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                },
                {
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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      ],
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hns: Fix log flood after cmd_mbox failure\n\nhns_roce_cmd_mbox() is the command interface between driver and\nhardware. When hardware is abnormal, the unlimited error printings\nafter hns_roce_cmd_mbox() failure will cause log flood and even\nsystem crash.\n\nReplace ibdev_err() and ibdev_warn() with their ratelimited versions\nin the error handling path after hns_roce_cmd_mbox() (and its wrappers\nhns_roce_create_hw_ctx/hns_roce_destroy_hw_ctx) fails."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:18:27.843Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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        },
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          "url": "https://git.kernel.org/stable/c/66f44ec974ab372e4e1ee9eac4245237c94e8f68"
        },
        {
          "url": "https://git.kernel.org/stable/c/f3c9e84268e9fa613d40d6c138fb6969c35879b5"
        },
        {
          "url": "https://git.kernel.org/stable/c/bbd97d71e53e551890e4115ad9de46b5f2ac0858"
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      "title": "RDMA/hns: Fix log flood after cmd_mbox failure",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-74389",
    "datePublished": "2026-08-15T05:59:03.786Z",
    "dateReserved": "2026-08-15T05:44:03.891Z",
    "dateUpdated": "2026-08-17T05:18:27.843Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

GHSA-R243-5F6V-4CPG

CVE-2026-74389 (GCVE-0-2026-74389)

Tags

Sightings

Nomenclature