Vulnerability-Lookup

FKIE_CVE-2024-50262

Vulnerability from fkie_nvd - Published: 2024-11-09 11:15 - Updated: 2026-06-17 08:04

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix out-of-bounds write in trie_get_next_key() trie_get_next_key() allocates a node stack with size trie->max_prefixlen, while it writes (trie->max_prefixlen + 1) nodes to the stack when it has full paths from the root to leaves. For example, consider a trie with max_prefixlen is 8, and the nodes with key 0x00/0, 0x00/1, 0x00/2, ... 0x00/8 inserted. Subsequent calls to trie_get_next_key with _key with .prefixlen = 8 make 9 nodes be written on the node stack with size 8.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/13400ac8fb80c57c2bfb12ebd35ee121ce9b4d21	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/590976f921723d53ac199c01d5b7b73a94875e68	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/86c8ebe02d8806dd8878d0063e8e185622ab6ea6	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/90a6e0e1e151ef7a9282e78f54c3091de2dcc99c	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/91afbc0eb3c90258ae378ae3c6ead3d2371e926d	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a035df0b98df424559fd383e8e1a268f422ea2ba	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c4b4f9a9ab82238cb158fa4fe61a8c0ae21a4980	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e8494ac079814a53fbc2258d2743e720907488ed	Patch
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
0b142b55-0307-4c5a-b3c9-f314f3fb7c5e	https://cert-portal.siemens.com/productcert/html/ssa-265688.html
0b142b55-0307-4c5a-b3c9-f314f3fb7c5e	https://cert-portal.siemens.com/productcert/html/ssa-355557.html
0b142b55-0307-4c5a-b3c9-f314f3fb7c5e	https://cert-portal.siemens.com/productcert/html/ssa-398330.html

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.12
linux	linux_kernel	6.12
linux	linux_kernel	6.12
linux	linux_kernel	6.12
linux	linux_kernel	6.12

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/lpm_trie.c"
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          "vendor": "Linux",
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        {
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              "status": "affected",
              "version": "0",
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        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
          "vendor": "Siemens",
          "versions": [
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              "status": "affected",
              "version": "0",
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        {
          "defaultStatus": "unknown",
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              "version": "V3.1.0",
              "versionType": "custom"
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        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
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              "version": "V3.1.0",
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        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
          "vendor": "Siemens",
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              "status": "affected",
              "version": "V3.1.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
          "vendor": "Siemens",
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              "version": "V3.1.0",
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        },
        {
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          "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
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          ]
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      ],
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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          "negate": false,
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix out-of-bounds write in trie_get_next_key()\n\ntrie_get_next_key() allocates a node stack with size trie-\u003emax_prefixlen,\nwhile it writes (trie-\u003emax_prefixlen + 1) nodes to the stack when it has\nfull paths from the root to leaves. For example, consider a trie with\nmax_prefixlen is 8, and the nodes with key 0x00/0, 0x00/1, 0x00/2, ...\n0x00/8 inserted. Subsequent calls to trie_get_next_key with _key with\n.prefixlen = 8 make 9 nodes be written on the node stack with size 8."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: Se corrige la escritura fuera de los l\u00edmites en trie_get_next_key() trie_get_next_key() asigna una pila de nodos con tama\u00f1o trie-\u0026gt;max_prefixlen, mientras escribe (trie-\u0026gt;max_prefixlen + 1) nodos en la pila cuando tiene rutas completas desde la ra\u00edz hasta las hojas. Por ejemplo, considere un trie con max_prefixlen es 8, y los nodos con clave 0x00/0, 0x00/1, 0x00/2, ... 0x00/8 insertados. Las llamadas posteriores a trie_get_next_key con _key con .prefixlen = 8 hacen que se escriban 9 nodos en la pila de nodos con tama\u00f1o 8."
    }
  ],
  "id": "CVE-2024-50262",
  "lastModified": "2026-06-17T08:04:02.567",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
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        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
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    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-50262",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
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          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-12-11T15:09:18.664200Z",
          "version": "2.0.3"
        }
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  "published": "2024-11-09T11:15:11.687",
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
    },
    {
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
    },
    {
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html"
    },
    {
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}

CVE-2024-50262 (GCVE-0-2024-50262)

Vulnerability from cvelistv5 – Published: 2024-11-09 10:17 – Updated: 2026-08-05 11:42

Title

bpf: Fix out-of-bounds write in trie_get_next_key()

Summary

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-12-11 15:09 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

Linux mitre root

References

13 references

URL	Tags
https://git.kernel.org/stable/c/e8494ac079814a53f…
https://git.kernel.org/stable/c/91afbc0eb3c90258a…
https://git.kernel.org/stable/c/590976f921723d53a…
https://git.kernel.org/stable/c/86c8ebe02d8806dd8…
https://git.kernel.org/stable/c/a035df0b98df42455…
https://git.kernel.org/stable/c/90a6e0e1e151ef7a9…
https://git.kernel.org/stable/c/c4b4f9a9ab82238cb…
https://git.kernel.org/stable/c/13400ac8fb80c57c2…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2025…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

9 products

Vendor	Product	Version
Linux	Linux	Affected: b471f2f1de8b816f1e799b80aa92588f3566e4bd , < e8494ac079814a53fbc2258d2743e720907488ed (git) Affected: b471f2f1de8b816f1e799b80aa92588f3566e4bd , < 91afbc0eb3c90258ae378ae3c6ead3d2371e926d (git) Affected: b471f2f1de8b816f1e799b80aa92588f3566e4bd , < 590976f921723d53ac199c01d5b7b73a94875e68 (git) Affected: b471f2f1de8b816f1e799b80aa92588f3566e4bd , < 86c8ebe02d8806dd8878d0063e8e185622ab6ea6 (git) Affected: b471f2f1de8b816f1e799b80aa92588f3566e4bd , < a035df0b98df424559fd383e8e1a268f422ea2ba (git) Affected: b471f2f1de8b816f1e799b80aa92588f3566e4bd , < 90a6e0e1e151ef7a9282e78f54c3091de2dcc99c (git) Affected: b471f2f1de8b816f1e799b80aa92588f3566e4bd , < c4b4f9a9ab82238cb158fa4fe61a8c0ae21a4980 (git) Affected: b471f2f1de8b816f1e799b80aa92588f3566e4bd , < 13400ac8fb80c57c2bfb12ebd35ee121ce9b4d21 (git)
Linux	Linux	Affected: 4.16 Unaffected: 0 , < 4.16 (semver) Unaffected: 4.19.323 , ≤ 4.19.* (semver) Unaffected: 5.4.285 , ≤ 5.4.* (semver) Unaffected: 5.10.229 , ≤ 5.10.* (semver) Unaffected: 5.15.171 , ≤ 5.15.* (semver) Unaffected: 6.1.116 , ≤ 6.1.* (semver) Unaffected: 6.6.60 , ≤ 6.6.* (semver) Unaffected: 6.11.7 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix)
Siemens	RUGGEDCOM RST2428P	Affected: 0 , < V3.2 (custom)
Siemens	SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family	Affected: 0 , < V3.2 (custom)
Siemens	SCALANCE XCM-/XRM-/XCH-/XRH-300 family	Affected: 0 , < V3.2 (custom)
Siemens	SIMATIC S7-1500 TM MFP - GNU/Linux subsystem	Affected: 0 , < * (custom)
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)

Show details on NVD website

JSON

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{
  "containers": {
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              "attackVector": "LOCAL",
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              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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              "content": {
                "id": "CVE-2024-50262",
                "options": [
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                    "Exploitation": "none"
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        ],
        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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          },
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                "version": "V3.1.0",
                "versionType": "custom"
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            "defaultStatus": "unknown",
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          {
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            "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
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                "status": "affected",
                "version": "V3.1.0",
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          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
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                "status": "affected",
                "version": "V3.1.0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
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                "status": "affected",
                "version": "V3.1.0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-12T12:00:45.652Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
          },
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
          },
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html"
          }
        ],
        "x_adpType": "supplier"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/lpm_trie.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e8494ac079814a53fbc2258d2743e720907488ed",
              "status": "affected",
              "version": "b471f2f1de8b816f1e799b80aa92588f3566e4bd",
              "versionType": "git"
            },
            {
              "lessThan": "91afbc0eb3c90258ae378ae3c6ead3d2371e926d",
              "status": "affected",
              "version": "b471f2f1de8b816f1e799b80aa92588f3566e4bd",
              "versionType": "git"
            },
            {
              "lessThan": "590976f921723d53ac199c01d5b7b73a94875e68",
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              "version": "b471f2f1de8b816f1e799b80aa92588f3566e4bd",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "b471f2f1de8b816f1e799b80aa92588f3566e4bd",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "b471f2f1de8b816f1e799b80aa92588f3566e4bd",
              "versionType": "git"
            },
            {
              "lessThan": "90a6e0e1e151ef7a9282e78f54c3091de2dcc99c",
              "status": "affected",
              "version": "b471f2f1de8b816f1e799b80aa92588f3566e4bd",
              "versionType": "git"
            },
            {
              "lessThan": "c4b4f9a9ab82238cb158fa4fe61a8c0ae21a4980",
              "status": "affected",
              "version": "b471f2f1de8b816f1e799b80aa92588f3566e4bd",
              "versionType": "git"
            },
            {
              "lessThan": "13400ac8fb80c57c2bfb12ebd35ee121ce9b4d21",
              "status": "affected",
              "version": "b471f2f1de8b816f1e799b80aa92588f3566e4bd",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/lpm_trie.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.16"
            },
            {
              "lessThan": "4.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.323",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.285",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.229",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.171",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.116",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.60",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.323",
                  "versionStartIncluding": "4.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.285",
                  "versionStartIncluding": "4.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.229",
                  "versionStartIncluding": "4.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.171",
                  "versionStartIncluding": "4.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.116",
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11.7",
                  "versionStartIncluding": "4.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12",
                  "versionStartIncluding": "4.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix out-of-bounds write in trie_get_next_key()\n\ntrie_get_next_key() allocates a node stack with size trie-\u003emax_prefixlen,\nwhile it writes (trie-\u003emax_prefixlen + 1) nodes to the stack when it has\nfull paths from the root to leaves. For example, consider a trie with\nmax_prefixlen is 8, and the nodes with key 0x00/0, 0x00/1, 0x00/2, ...\n0x00/8 inserted. Subsequent calls to trie_get_next_key with _key with\n.prefixlen = 8 make 9 nodes be written on the node stack with size 8."
        }
      ],
      "metrics": [
        {
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            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerability is reached exclusively through the local `bpf()` syscall (BPF_MAP_GET_NEXT_KEY / BPF_MAP_LOOKUP_BATCH) against an LPM_TRIE map fd. No network-facing code path processes remote data through trie_get_next_key().\nAC:L - The overflow is fully deterministic \u2014 the attacker builds the trie with keys 0x00/0 \u2026 0x00/max_prefixlen and issues one GET_NEXT_KEY with prefixlen == max_prefixlen. No race, no timing dependency, and the attacker also chooses key_size so the allocation sits exactly on a kmalloc bucket boundary, and can repeat the trigger arbitrarily to groom the heap.\nPR:L - Creating the map nominally needs CAP_BPF, but `bpf_token_capable()` honors ns_capable() against a BPF-token user namespace, so a delegated bpffs mount grants it to an unprivileged container process; furthermore `bpf_obj_get()` performs only a file-permission check and `map_get_next_key()` requires only FMODE_CAN_READ, so an unprivileged process holding or opening an existing pinned LPM_TRIE map fd can trigger the write with no capability at all.\nUI:N - Exploitation is entirely self-contained in the attacker\u0027s own process \u2014 map creation, element insertion, and the GET_NEXT_KEY call. No victim action of any kind is required.\nS:U - The out-of-bounds write corrupts kernel slab memory within the same kernel security authority; it is a standard local privilege-escalation surface rather than a crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The 8-byte heap overflow overwrites the first field of the adjacent slab object with a pointer to attacker-controlled data, which for the many kmalloc-64/128/256 objects that begin with a pointer yields a fake-object read primitive and, via freelist corruption, arbitrary kernel memory disclosure.\nI:H - This is a controllable out-of-bounds heap write of a valid kernel pointer at a precisely chosen slab bucket boundary, repeatable at will \u2014 a classic path to SLUB freelist corruption, arbitrary write, and control-flow hijack for privilege escalation.\nA:H - Corrupting the head of an adjacent slab object or a SLUB freelist pointer reliably produces kernel oops/panic, and the trigger can be issued repeatedly by any process holding a readable LPM_TRIE map fd."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:42:51.880Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e8494ac079814a53fbc2258d2743e720907488ed"
        },
        {
          "url": "https://git.kernel.org/stable/c/91afbc0eb3c90258ae378ae3c6ead3d2371e926d"
        },
        {
          "url": "https://git.kernel.org/stable/c/590976f921723d53ac199c01d5b7b73a94875e68"
        },
        {
          "url": "https://git.kernel.org/stable/c/86c8ebe02d8806dd8878d0063e8e185622ab6ea6"
        },
        {
          "url": "https://git.kernel.org/stable/c/a035df0b98df424559fd383e8e1a268f422ea2ba"
        },
        {
          "url": "https://git.kernel.org/stable/c/90a6e0e1e151ef7a9282e78f54c3091de2dcc99c"
        },
        {
          "url": "https://git.kernel.org/stable/c/c4b4f9a9ab82238cb158fa4fe61a8c0ae21a4980"
        },
        {
          "url": "https://git.kernel.org/stable/c/13400ac8fb80c57c2bfb12ebd35ee121ce9b4d21"
        }
      ],
      "title": "bpf: Fix out-of-bounds write in trie_get_next_key()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50262",
    "datePublished": "2024-11-09T10:17:50.461Z",
    "dateReserved": "2024-10-21T19:36:19.981Z",
    "dateUpdated": "2026-08-05T11:42:51.880Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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FKIE_CVE-2024-50262

CVE-2024-50262 (GCVE-0-2024-50262)

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Sightings

Nomenclature

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