Vulnerability-Lookup

FKIE_CVE-2025-71270

Vulnerability from fkie_nvd - Published: 2026-03-18 18:16 - Updated: 2026-05-21 18:36

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: LoongArch: Enable exception fixup for specific ADE subcode This patch allows the LoongArch BPF JIT to handle recoverable memory access errors generated by BPF_PROBE_MEM* instructions. When a BPF program performs memory access operations, the instructions it executes may trigger ADEM exceptions. The kernel’s built-in BPF exception table mechanism (EX_TYPE_BPF) will generate corresponding exception fixup entries in the JIT compilation phase; however, the architecture-specific trap handling function needs to proactively call the common fixup routine to achieve exception recovery. do_ade(): fix EX_TYPE_BPF memory access exceptions for BPF programs, ensure safe execution. Relevant test cases: illegal address access tests in module_attach and subprogs_extable of selftests/bpf.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/73ede654d9daa2ee41bdd17bc62946fc5a0258cb	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9bdc1ab5e4ce6f066119018d8f69631a46f9c5a0	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c2ed4f71e9288f21d5c53ff790270758e60fa5f9	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c49a28068363f3dca439aa5fe4d3b1f8159809fe	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19

JSON

To clipboard

{
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    {
      "nodes": [
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Enable exception fixup for specific ADE subcode\n\nThis patch allows the LoongArch BPF JIT to handle recoverable memory\naccess errors generated by BPF_PROBE_MEM* instructions.\n\nWhen a BPF program performs memory access operations, the instructions\nit executes may trigger ADEM exceptions. The kernel\u2019s built-in BPF\nexception table mechanism (EX_TYPE_BPF) will generate corresponding\nexception fixup entries in the JIT compilation phase; however, the\narchitecture-specific trap handling function needs to proactively call\nthe common fixup routine to achieve exception recovery.\n\ndo_ade(): fix EX_TYPE_BPF memory access exceptions for BPF programs,\nensure safe execution.\n\nRelevant test cases: illegal address access tests in module_attach and\nsubprogs_extable of selftests/bpf."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nLoongArch: Habilitar la correcci\u00f3n de excepciones para un subc\u00f3digo ADE espec\u00edfico\n\nEste parche permite al JIT BPF de LoongArch manejar errores de acceso a memoria recuperables generados por instrucciones BPF_PROBE_MEM*.\n\nCuando un programa BPF realiza operaciones de acceso a memoria, las instrucciones que ejecuta pueden desencadenar excepciones ADEM. El mecanismo de tabla de excepciones BPF integrado del kernel (EX_TYPE_BPF) generar\u00e1 entradas de correcci\u00f3n de excepciones correspondientes en la fase de compilaci\u00f3n JIT; sin embargo, la funci\u00f3n de manejo de trampas espec\u00edfica de la arquitectura necesita llamar proactivamente a la rutina de correcci\u00f3n com\u00fan para lograr la recuperaci\u00f3n de la excepci\u00f3n.\n\ndo_ade(): corrige las excepciones de acceso a memoria EX_TYPE_BPF para programas BPF, asegura la ejecuci\u00f3n segura.\n\nCasos de prueba relevantes: pruebas de acceso a direcciones ilegales en module_attach y subprogs_extable de selftests/bpf."
    }
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  "id": "CVE-2025-71270",
  "lastModified": "2026-05-21T18:36:19.740",
  "metrics": {
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          "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"
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        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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  ]
}

CVE-2025-71270 (GCVE-0-2025-71270)

Vulnerability from cvelistv5 – Published: 2026-03-18 17:40 – Updated: 2026-05-11 21:57

Title

LoongArch: Enable exception fixup for specific ADE subcode

Summary

Severity

No CVSS data available.

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/73ede654d9daa2ee4…
https://git.kernel.org/stable/c/c49a28068363f3dca…
https://git.kernel.org/stable/c/c2ed4f71e9288f21d…
https://git.kernel.org/stable/c/9bdc1ab5e4ce6f066…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: dbcd7f5fafea64dbe588c4ec18bc309fde5d1e1c , < 73ede654d9daa2ee41bdd17bc62946fc5a0258cb (git) Affected: dbcd7f5fafea64dbe588c4ec18bc309fde5d1e1c , < c49a28068363f3dca439aa5fe4d3b1f8159809fe (git) Affected: dbcd7f5fafea64dbe588c4ec18bc309fde5d1e1c , < c2ed4f71e9288f21d5c53ff790270758e60fa5f9 (git) Affected: dbcd7f5fafea64dbe588c4ec18bc309fde5d1e1c , < 9bdc1ab5e4ce6f066119018d8f69631a46f9c5a0 (git)
Linux	Linux	Affected: 6.2 Unaffected: 0 , < 6.2 (semver) Unaffected: 6.6.124 , ≤ 6.6.* (semver) Unaffected: 6.12.70 , ≤ 6.12.* (semver) Unaffected: 6.18.10 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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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.
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.

Action not permitted

FKIE_CVE-2025-71270

CVE-2025-71270 (GCVE-0-2025-71270)

Tags

Sightings

Nomenclature