CVE-2026-93153 (GCVE-0-2026-93153)
Vulnerability from cvelistv5
Published
2026-09-17 16:11
Modified
2026-10-19 09:06
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: RDMA/bng_re: return a timeout when firmware responses stall __wait_for_resp() documents that it returns a non-zero error when a firmware command does not complete, and bng_re_rcfw_send_message() already marks the firmware as stalled when the helper returns -ENODEV. However, the helper ignores wait_event_timeout() expiry. If the response slot remains in use after the timeout and after the polled CREQ service attempt, the loop starts another full timeout period and can repeat forever. Return -ENODEV after a timed out wait that still has no response. The existing caller then marks FIRMWARE_STALL_DETECTED and returns -ETIMEDOUT to the command issuer.
References
Impacted products
Vendor Product Version
Linux Linux Version: 53c6ee7d7f68a0679f8ddc703338aa2550d24a17
Version: 53c6ee7d7f68a0679f8ddc703338aa2550d24a17
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/bng_re/bng_fw.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
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          "vendor": "Linux",
          "versions": [
            {
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              "version": "6.19"
            },
            {
              "lessThan": "6.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
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              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.6",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/bng_re: return a timeout when firmware responses stall\n\n__wait_for_resp() documents that it returns a non-zero error when a\nfirmware command does not complete, and bng_re_rcfw_send_message() already\nmarks the firmware as stalled when the helper returns -ENODEV.\n\nHowever, the helper ignores wait_event_timeout() expiry.  If the response\nslot remains in use after the timeout and after the polled CREQ service\nattempt, the loop starts another full timeout period and can repeat\nforever.\n\nReturn -ENODEV after a timed out wait that still has no response.  The\nexisting caller then marks FIRMWARE_STALL_DETECTED and returns\n-ETIMEDOUT to the command issuer."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:06:25.393Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/02d4ee65dc2e883f554169155937742e6014c243"
        },
        {
          "url": "https://git.kernel.org/stable/c/5f9576c6734abca88a02db72c466e09d2eddf160"
        }
      ],
      "title": "RDMA/bng_re: return a timeout when firmware responses stall",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93153",
    "datePublished": "2026-09-17T16:11:49.443Z",
    "dateReserved": "2026-09-17T16:02:15.089Z",
    "dateUpdated": "2026-10-19T09:06:25.393Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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