Vulnerability-Lookup

FKIE_CVE-2025-71129

Vulnerability from fkie_nvd - Published: 2026-01-14 15:16 - Updated: 2026-03-25 18:53

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: BPF: Sign extend kfunc call arguments The kfunc calls are native calls so they should follow LoongArch calling conventions. Sign extend its arguments properly to avoid kernel panic. This is done by adding a new emit_abi_ext() helper. The emit_abi_ext() helper performs extension in place meaning a value already store in the target register (Note: this is different from the existing sign_extend() helper and thus we can't reuse it).

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0d666db731e95890e0eda7ea61bc925fd2be90c6	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/321993a874f571a94b5a596f1132f798c663b56e	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3f5a238f24d7b75f9efe324d3539ad388f58536e	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/fd43edf357a3a1f5ed1c4bf450b60001c9091c39	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.1
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "6.6.120",
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            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "32BF4A52-377C-44ED-B5E6-7EA5D896E98B",
              "versionEndExcluding": "6.12.64",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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            },
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              "matchCriteriaId": "17B67AA7-40D6-4AFA-8459-F200F3D7CFD1",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "C47E4CC9-C826-4FA9-B014-7FE3D9B318B2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "F71D92C0-C023-48BD-B3B6-70B638EEE298",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*",
              "matchCriteriaId": "13580667-0A98-40CC-B29F-D12790B91BDB",
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              "matchCriteriaId": "3EF854A1-ABB1-4E93-BE9A-44569EC76C0D",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "F5DC0CA6-F0AF-4DDF-A882-3DADB9A886A7",
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: BPF: Sign extend kfunc call arguments\n\nThe kfunc calls are native calls so they should follow LoongArch calling\nconventions. Sign extend its arguments properly to avoid kernel panic.\nThis is done by adding a new emit_abi_ext() helper. The emit_abi_ext()\nhelper performs extension in place meaning a value already store in the\ntarget register (Note: this is different from the existing sign_extend()\nhelper and thus we can\u0027t reuse it)."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nLoongArch: BPF: Extensi\u00f3n de signo de los argumentos de llamada a kfunc\n\nLas llamadas a kfunc son llamadas nativas, por lo que deben seguir las convenciones de llamada de LoongArch. Extender el signo de sus argumentos correctamente para evitar un p\u00e1nico del kernel. Esto se logra a\u00f1adiendo una nueva funci\u00f3n auxiliar emit_abi_ext(). La funci\u00f3n auxiliar emit_abi_ext() realiza la extensi\u00f3n in situ, lo que significa un valor ya almacenado en el registro de destino (Nota: esto es diferente de la funci\u00f3n auxiliar sign_extend() existente y, por lo tanto, no podemos reutilizarla)."
    }
  ],
  "id": "CVE-2025-71129",
  "lastModified": "2026-03-25T18:53:09.347",
  "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"
      }
    ]
  },
  "published": "2026-01-14T15:16:02.647",
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      "tags": [
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    },
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    },
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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        {
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          "value": "NVD-CWE-noinfo"
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      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2025-71129 (GCVE-0-2025-71129)

Vulnerability from cvelistv5 – Published: 2026-01-14 15:07 – Updated: 2026-05-11 21:55

Title

LoongArch: BPF: Sign extend kfunc call arguments

Summary

Severity

No CVSS data available.

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/fd43edf357a3a1f5e…
https://git.kernel.org/stable/c/0d666db731e95890e…
https://git.kernel.org/stable/c/321993a874f571a94…
https://git.kernel.org/stable/c/3f5a238f24d7b75f9…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 5dc615520c4dfb358245680f1904bad61116648e , < fd43edf357a3a1f5ed1c4bf450b60001c9091c39 (git) Affected: 5dc615520c4dfb358245680f1904bad61116648e , < 0d666db731e95890e0eda7ea61bc925fd2be90c6 (git) Affected: 5dc615520c4dfb358245680f1904bad61116648e , < 321993a874f571a94b5a596f1132f798c663b56e (git) Affected: 5dc615520c4dfb358245680f1904bad61116648e , < 3f5a238f24d7b75f9efe324d3539ad388f58536e (git)
Linux	Linux	Affected: 6.1 Unaffected: 0 , < 6.1 (semver) Unaffected: 6.6.120 , ≤ 6.6.* (semver) Unaffected: 6.12.64 , ≤ 6.12.* (semver) Unaffected: 6.18.4 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/loongarch/net/bpf_jit.c",
            "arch/loongarch/net/bpf_jit.h"
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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-2025-71129

CVE-2025-71129 (GCVE-0-2025-71129)

Tags

Sightings

Nomenclature