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CVE-2022-49906 (GCVE-0-2022-49906)

Vulnerability from cvelistv5 – Published: 2025-05-01 14:10 – Updated: 2026-05-11 19:09
VLAI
Title
ibmvnic: Free rwi on reset success
Summary
In the Linux kernel, the following vulnerability has been resolved: ibmvnic: Free rwi on reset success Free the rwi structure in the event that the last rwi in the list processed successfully. The logic in commit 4f408e1fa6e1 ("ibmvnic: retry reset if there are no other resets") introduces an issue that results in a 32 byte memory leak whenever the last rwi in the list gets processed.
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 16:01 UTC
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 4f408e1fa6e10b6da72691233369172bac7d9e9b , < 535b78739ae75f257c894a05b1afa86ad9a3669e (git)
Affected: 4f408e1fa6e10b6da72691233369172bac7d9e9b , < c3543a287cfba9105dcc4bb41eb817f51266caaf (git)
Affected: 4f408e1fa6e10b6da72691233369172bac7d9e9b , < d6dd2fe71153f0ff748bf188bd4af076fe09a0a6 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 5.15.78 , ≤ 5.15.* (semver)
Unaffected: 6.0.8 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1",
                      "versionStartIncluding": "5.14",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nibmvnic: Free rwi on reset success\n\nFree the rwi structure in the event that the last rwi in the list\nprocessed successfully. The logic in commit 4f408e1fa6e1 (\"ibmvnic:\nretry reset if there are no other resets\") introduces an issue that\nresults in a 32 byte memory leak whenever the last rwi in the list\ngets processed."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-05-04T08:48:23.919Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/535b78739ae75f257c894a05b1afa86ad9a3669e"
            },
            {
              "url": "https://git.kernel.org/stable/c/c3543a287cfba9105dcc4bb41eb817f51266caaf"
            },
            {
              "url": "https://git.kernel.org/stable/c/d6dd2fe71153f0ff748bf188bd4af076fe09a0a6"
            }
          ],
          "title": "ibmvnic: Free rwi on reset success",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2022-49906",
        "datePublished": "2025-05-01T14:10:50.383Z",
        "dateReserved": "2025-05-01T14:05:17.246Z",
        "dateUpdated": "2025-10-01T16:01:19.571Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.