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CVE-2022-49208 (GCVE-0-2022-49208)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:55 – Updated: 2026-05-11 18:55
VLAI
Title
RDMA/irdma: Prevent some integer underflows
Summary
In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Prevent some integer underflows My static checker complains that: drivers/infiniband/hw/irdma/ctrl.c:3605 irdma_sc_ceq_init() warn: can subtract underflow 'info->dev->hmc_fpm_misc.max_ceqs'? It appears that "info->dev->hmc_fpm_misc.max_ceqs" comes from the firmware in irdma_sc_parse_fpm_query_buf() so, yes, there is a chance that it could be zero. Even if we trust the firmware, it's easy enough to change the condition just as a hardenning measure.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 19:46 UTC
CWE
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3f49d684256963d3f27dfb9d9ff228e2255be78d , < d52dab6e03550f9c97121b0c11c0a3ed78ee76a4 (git)
Affected: 3f49d684256963d3f27dfb9d9ff228e2255be78d , < f21056f15bbeacab7b4b87af232f5599d1f2bff1 (git)
Affected: 3f49d684256963d3f27dfb9d9ff228e2255be78d , < 7340c3675d7ac946f4019b84cd7c64ed542dfe4c (git)
Affected: 3f49d684256963d3f27dfb9d9ff228e2255be78d , < 6f6dbb819dfc1a35bcb8b709b5c83a3ea8beff75 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 5.15.33 , ≤ 5.15.* (semver)
Unaffected: 5.16.19 , ≤ 5.16.* (semver)
Unaffected: 5.17.2 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "d52dab6e03550f9c97121b0c11c0a3ed78ee76a4",
                  "status": "affected",
                  "version": "3f49d684256963d3f27dfb9d9ff228e2255be78d",
                  "versionType": "git"
                },
                {
                  "lessThan": "f21056f15bbeacab7b4b87af232f5599d1f2bff1",
                  "status": "affected",
                  "version": "3f49d684256963d3f27dfb9d9ff228e2255be78d",
                  "versionType": "git"
                },
                {
                  "lessThan": "7340c3675d7ac946f4019b84cd7c64ed542dfe4c",
                  "status": "affected",
                  "version": "3f49d684256963d3f27dfb9d9ff228e2255be78d",
                  "versionType": "git"
                },
                {
                  "lessThan": "6f6dbb819dfc1a35bcb8b709b5c83a3ea8beff75",
                  "status": "affected",
                  "version": "3f49d684256963d3f27dfb9d9ff228e2255be78d",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/infiniband/hw/irdma/ctrl.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "5.14"
                },
                {
                  "lessThan": "5.14",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.33",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.16.*",
                  "status": "unaffected",
                  "version": "5.16.19",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.17.*",
                  "status": "unaffected",
                  "version": "5.17.2",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "5.18",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.33",
                      "versionStartIncluding": "5.14",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.16.19",
                      "versionStartIncluding": "5.14",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.17.2",
                      "versionStartIncluding": "5.14",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.18",
                      "versionStartIncluding": "5.14",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/irdma: Prevent some integer underflows\n\nMy static checker complains that:\n\n    drivers/infiniband/hw/irdma/ctrl.c:3605 irdma_sc_ceq_init()\n    warn: can subtract underflow \u0027info-\u003edev-\u003ehmc_fpm_misc.max_ceqs\u0027?\n\nIt appears that \"info-\u003edev-\u003ehmc_fpm_misc.max_ceqs\" comes from the firmware\nin irdma_sc_parse_fpm_query_buf() so, yes, there is a chance that it could\nbe zero.  Even if we trust the firmware, it\u0027s easy enough to change the\ncondition just as a hardenning measure."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T18:55:14.183Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/d52dab6e03550f9c97121b0c11c0a3ed78ee76a4"
            },
            {
              "url": "https://git.kernel.org/stable/c/f21056f15bbeacab7b4b87af232f5599d1f2bff1"
            },
            {
              "url": "https://git.kernel.org/stable/c/7340c3675d7ac946f4019b84cd7c64ed542dfe4c"
            },
            {
              "url": "https://git.kernel.org/stable/c/6f6dbb819dfc1a35bcb8b709b5c83a3ea8beff75"
            }
          ],
          "title": "RDMA/irdma: Prevent some integer underflows",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2022-49208",
        "datePublished": "2025-02-26T01:55:46.666Z",
        "dateReserved": "2025-02-26T01:49:39.291Z",
        "dateUpdated": "2026-05-11T18:55:14.183Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.