CVE-2024-49568 (GCVE-0-2024-49568)

Vulnerability from cvelistv5 – Published: 2025-01-11 12:35 – Updated: 2026-10-03 10:55
VLAI
Title
net/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg
Summary
In the Linux kernel, the following vulnerability has been resolved: net/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg When receiving proposal msg in server, the fields v2_ext_offset/ eid_cnt/ism_gid_cnt in proposal msg are from the remote client and can not be fully trusted. Especially the field v2_ext_offset, once exceed the max value, there has the chance to access wrong address, and crash may happen. This patch checks the fields v2_ext_offset/eid_cnt/ism_gid_cnt before using them.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 54/100 over 6618 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 8c3dca341aea885249e08856c4380300b75d2cf5 , < 9cc0170ae646876aa5de2f0cad3066ce53e86f27 (git)
Affected: 8c3dca341aea885249e08856c4380300b75d2cf5 , < 49798283fce4c1a24fb1ba4c7c39127739535571 (git)
Affected: 8c3dca341aea885249e08856c4380300b75d2cf5 , < 690b9a8db9460d065785548e43fd6a02d247c1b7 (git)
Affected: 8c3dca341aea885249e08856c4380300b75d2cf5 , < 295a92e3df32e72aff0f4bc25c310e349d07ffbf (git)
Affected: 8c3dca341aea885249e08856c4380300b75d2cf5 , < 42f6beb2d5779429417b5f8115a4e3fa695d2a6c (git)
Affected: 8c3dca341aea885249e08856c4380300b75d2cf5 , < 7863c9f3d24ba49dbead7e03dfbe40deb5888fdf (git)
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Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 5.10.271 , ≤ 5.10.* (semver)
Unaffected: 5.15.222 , ≤ 5.15.* (semver)
Unaffected: 6.1.189 , ≤ 6.1.* (semver)
Unaffected: 6.6.68 , ≤ 6.6.* (semver)
Unaffected: 6.12.7 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg\n\nWhen receiving proposal msg in server, the fields v2_ext_offset/\neid_cnt/ism_gid_cnt in proposal msg are from the remote client\nand can not be fully trusted. Especially the field v2_ext_offset,\nonce exceed the max value, there has the chance to access wrong\naddress, and crash may happen.\n\nThis patch checks the fields v2_ext_offset/eid_cnt/ism_gid_cnt\nbefore using them."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/smc: comprobar v2_ext_offset/eid_cnt/ism_gid_cnt al recibir un mensaje de propuesta Al recibir un mensaje de propuesta en el servidor, los campos v2_ext_offset/eid_cnt/ism_gid_cnt en el mensaje de propuesta son del cliente remoto y no se puede confiar plenamente en ellos. Especialmente el campo v2_ext_offset, una vez que se excede el valor m\u00e1ximo, existe la posibilidad de acceder a una direcci\u00f3n incorrecta y puede producirse un bloqueo. Este parche comprueba los campos v2_ext_offset/eid_cnt/ism_gid_cnt antes de usarlos."
          }
        ],
        "id": "CVE-2024-49568",
        "lastModified": "2026-10-03T11:17:31.710",
        "metrics": {
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              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
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                "baseScore": 9.8,
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                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
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                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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        "published": "2025-01-11T13:15:23.637",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/295a92e3df32e72aff0f4bc25c310e349d07ffbf"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/42f6beb2d5779429417b5f8115a4e3fa695d2a6c"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/49798283fce4c1a24fb1ba4c7c39127739535571"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/690b9a8db9460d065785548e43fd6a02d247c1b7"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/7863c9f3d24ba49dbead7e03dfbe40deb5888fdf"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/9cc0170ae646876aa5de2f0cad3066ce53e86f27"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T17:57:01+00:00",
      "cve": "CVE-2024-49568",
      "id": "CVE-2024-49568",
      "initial_release_date": "2024-01-01T00:00:00+00:00",
      "product_status:known_affected": "156",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-49568.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-10-03T16:44:58Z",
      "cve": "CVE-2024-49568",
      "id": "CVE-2024-49568",
      "initial_release_date": "2025-01-12T00:17:53Z",
      "product_status:known_affected": "625",
      "product_status:known_not_affected": "223",
      "product_status:recommended": "381",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-49568",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-49568.json",
      "version": "56"
    }
  }
}



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Tags
Taxonomy of the tags.





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.



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.