Vulnerability-Lookup

FKIE_CVE-2024-35895

Vulnerability from fkie_nvd - Published: 2024-05-19 09:15 - Updated: 2026-10-15 01:17

Severity

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

Summary

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Prevent lock inversion deadlock in map delete elem syzkaller started using corpuses where a BPF tracing program deletes elements from a sockmap/sockhash map. Because BPF tracing programs can be invoked from any interrupt context, locks taken during a map_delete_elem operation must be hardirq-safe. Otherwise a deadlock due to lock inversion is possible, as reported by lockdep: CPU0 CPU1 ---- ---- lock(&htab->buckets[i].lock); local_irq_disable(); lock(&host->lock); lock(&htab->buckets[i].lock); <Interrupt> lock(&host->lock); Locks in sockmap are hardirq-unsafe by design. We expects elements to be deleted from sockmap/sockhash only in task (normal) context with interrupts enabled, or in softirq context. Detect when map_delete_elem operation is invoked from a context which is _not_ hardirq-unsafe, that is interrupts are disabled, and bail out with an error. Note that map updates are not affected by this issue. BPF verifier does not allow updating sockmap/sockhash from a BPF tracing program today.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/668b3074aa14829e2ac2759799537a93b60fef86	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6af057ccdd8e7619960aca1f0428339f213b31cd	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a44770fed86515eedb5a7c00b787f847ebb134a5	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d1e73fb19a4c872d7a399ad3c66e8ca30e0875ec	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/dd54b48db0c822ae7b520bc80751f0a0a173ef75	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f7990498b05ac41f7d6a190dc0418ef1d21bf058	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ff91059932401894e6c86341915615c5eb0eca48	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/668b3074aa14829e2ac2759799537a93b60fef86	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/6af057ccdd8e7619960aca1f0428339f213b31cd	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/a44770fed86515eedb5a7c00b787f847ebb134a5	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/d1e73fb19a4c872d7a399ad3c66e8ca30e0875ec	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/dd54b48db0c822ae7b520bc80751f0a0a173ef75	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/f7990498b05ac41f7d6a190dc0418ef1d21bf058	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/ff91059932401894e6c86341915615c5eb0eca48	Patch
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html	Mailing List
0b142b55-0307-4c5a-b3c9-f314f3fb7c5e	https://cert-portal.siemens.com/productcert/html/ssa-265688.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	6.9
linux	linux_kernel	6.9
debian	debian_linux	10.0

JSON

To clipboard

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          "programFiles": [
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          "versions": [
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              "versionType": "semver"
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              "status": "unaffected",
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              "status": "unaffected",
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            },
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              "lessThanOrEqual": "*",
              "status": "unaffected",
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    },
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
          "vendor": "Siemens",
          "versions": [
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              "lessThan": "V1.1.1",
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, sockmap: Prevent lock inversion deadlock in map delete elem\n\nsyzkaller started using corpuses where a BPF tracing program deletes\nelements from a sockmap/sockhash map. Because BPF tracing programs can be\ninvoked from any interrupt context, locks taken during a map_delete_elem\noperation must be hardirq-safe. Otherwise a deadlock due to lock inversion\nis possible, as reported by lockdep:\n\n       CPU0                    CPU1\n       ----                    ----\n  lock(\u0026htab-\u003ebuckets[i].lock);\n                               local_irq_disable();\n                               lock(\u0026host-\u003elock);\n                               lock(\u0026htab-\u003ebuckets[i].lock);\n  \u003cInterrupt\u003e\n    lock(\u0026host-\u003elock);\n\nLocks in sockmap are hardirq-unsafe by design. We expects elements to be\ndeleted from sockmap/sockhash only in task (normal) context with interrupts\nenabled, or in softirq context.\n\nDetect when map_delete_elem operation is invoked from a context which is\n_not_ hardirq-unsafe, that is interrupts are disabled, and bail out with an\nerror.\n\nNote that map updates are not affected by this issue. BPF verifier does not\nallow updating sockmap/sockhash from a BPF tracing program today."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf, sockmap: Evitar el punto muerto de inversi\u00f3n de bloqueo en la eliminaci\u00f3n del mapa elem syzkaller comenz\u00f3 a usar corpus donde un programa de seguimiento BPF elimina elementos de un mapa sockmap/sockhash. Debido a que los programas de seguimiento BPF se pueden invocar desde cualquier contexto de interrupci\u00f3n, los bloqueos realizados durante una operaci\u00f3n map_delete_elem deben ser seguros. De lo contrario, es posible que se produzca un punto muerto debido a la inversi\u00f3n del bloqueo, como lo informa lockdep: CPU0 CPU1 ---- ---- lock(\u0026amp;htab-\u0026gt;buckets[i].lock); local_irq_disable(); bloquear(\u0026amp;host-\u0026gt;bloquear); lock(\u0026amp;htab-\u0026gt;cubos[i].lock);  bloqueo(\u0026amp;host-\u0026gt;bloqueo); Los bloqueos en sockmap son dif\u00edciles de inseguro por dise\u00f1o. Esperamos que los elementos se eliminen de sockmap/sockhash solo en el contexto de la tarea (normal) con las interrupciones habilitadas o en el contexto de softirq. Detecta cu\u00e1ndo se invoca la operaci\u00f3n map_delete_elem desde un contexto que _no_ es hardirq-inseguro, es decir, las interrupciones est\u00e1n deshabilitadas y sale con un error. Tenga en cuenta que las actualizaciones de mapas no se ven afectadas por este problema. El verificador de BPF no permite actualizar sockmap/sockhash desde un programa de seguimiento de BPF en la actualidad."
    }
  ],
  "id": "CVE-2024-35895",
  "lastModified": "2026-10-15T01:17:50.647",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-35895",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-05-23T19:25:39.256006Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-05-19T09:15:10.477",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/668b3074aa14829e2ac2759799537a93b60fef86"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
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    },
    {
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    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      ],
      "url": "https://git.kernel.org/stable/c/f7990498b05ac41f7d6a190dc0418ef1d21bf058"
    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      ],
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/668b3074aa14829e2ac2759799537a93b60fef86"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/6af057ccdd8e7619960aca1f0428339f213b31cd"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
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      "url": "https://git.kernel.org/stable/c/ff91059932401894e6c86341915615c5eb0eca48"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
    },
    {
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-667"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2024-35895 (GCVE-0-2024-35895)

Vulnerability from cvelistv5 – Published: 2024-05-19 08:34 – Updated: 2026-10-15 00:41

Title

bpf, sockmap: Prevent lock inversion deadlock in map delete elem

Summary

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-05-23 19:25 UTC

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7056 records in the last 180 days details

References

9 references

URL	Tags
https://git.kernel.org/stable/c/f7990498b05ac41f7…
https://git.kernel.org/stable/c/dd54b48db0c822ae7…
https://git.kernel.org/stable/c/d1e73fb19a4c872d7…
https://git.kernel.org/stable/c/a44770fed86515eed…
https://git.kernel.org/stable/c/668b3074aa14829e2…
https://git.kernel.org/stable/c/6af057ccdd8e76199…
https://git.kernel.org/stable/c/ff91059932401894e…
https://lists.debian.org/debian-lts-announce/2024…	x_transferred
https://cert-portal.siemens.com/productcert/html/…

Impacted products

3 products

Vendor	Product	Version
Linux	Linux	Affected: 604326b41a6fb9b4a78b6179335decee0365cd8c , < f7990498b05ac41f7d6a190dc0418ef1d21bf058 (git) Affected: 604326b41a6fb9b4a78b6179335decee0365cd8c , < dd54b48db0c822ae7b520bc80751f0a0a173ef75 (git) Affected: 604326b41a6fb9b4a78b6179335decee0365cd8c , < d1e73fb19a4c872d7a399ad3c66e8ca30e0875ec (git) Affected: 604326b41a6fb9b4a78b6179335decee0365cd8c , < a44770fed86515eedb5a7c00b787f847ebb134a5 (git) Affected: 604326b41a6fb9b4a78b6179335decee0365cd8c , < 668b3074aa14829e2ac2759799537a93b60fef86 (git) Affected: 604326b41a6fb9b4a78b6179335decee0365cd8c , < 6af057ccdd8e7619960aca1f0428339f213b31cd (git) Affected: 604326b41a6fb9b4a78b6179335decee0365cd8c , < ff91059932401894e6c86341915615c5eb0eca48 (git)
Linux	Linux	Affected: 4.20 Unaffected: 0 , < 4.20 (semver) Unaffected: 5.4.274 , ≤ 5.4.* (semver) Unaffected: 5.10.215 , ≤ 5.10.* (semver) Unaffected: 5.15.154 , ≤ 5.15.* (semver) Unaffected: 6.1.85 , ≤ 6.1.* (semver) Unaffected: 6.6.26 , ≤ 6.6.* (semver) Unaffected: 6.8.5 , ≤ 6.8.* (semver) Unaffected: 6.9 , ≤ * (original_commit_for_fix)
Siemens	SIMATIC S7-1500 TM MFP - GNU/Linux subsystem	Affected: 0 , < V1.1.1 (custom)

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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.
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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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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.
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