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

Vulnerability from cvelistv5 – Published: 2025-01-11 12:35 – Updated: 2025-05-04 09:39
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 ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux 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: 6.6.68 , ≤ 6.6.* (semver)
Unaffected: 6.12.7 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/smc/af_smc.c",
            "net/smc/smc_clc.c",
            "net/smc/smc_clc.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "8c3dca341aea885249e08856c4380300b75d2cf5",
              "versionType": "git"
            },
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              "lessThan": "42f6beb2d5779429417b5f8115a4e3fa695d2a6c",
              "status": "affected",
              "version": "8c3dca341aea885249e08856c4380300b75d2cf5",
              "versionType": "git"
            },
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          "product": "Linux",
          "programFiles": [
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            "net/smc/smc_clc.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
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              "status": "unaffected",
              "version": "6.12.7",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.68",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.7",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T09:39:23.222Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/295a92e3df32e72aff0f4bc25c310e349d07ffbf"
        },
        {
          "url": "https://git.kernel.org/stable/c/42f6beb2d5779429417b5f8115a4e3fa695d2a6c"
        },
        {
          "url": "https://git.kernel.org/stable/c/7863c9f3d24ba49dbead7e03dfbe40deb5888fdf"
        }
      ],
      "title": "net/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg",
      "x_generator": {
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      }
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-49568",
    "datePublished": "2025-01-11T12:35:36.190Z",
    "dateReserved": "2025-01-11T12:34:02.664Z",
    "dateUpdated": "2025-05-04T09:39:23.222Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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  • 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.
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  • 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.



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