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

Vulnerability from cvelistv5 – Published: 2026-01-14 15:07 – Updated: 2026-05-11 21:55
VLAI
Title
LoongArch: BPF: Sign extend kfunc call arguments
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).
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5dc615520c4dfb358245680f1904bad61116648e , < fd43edf357a3a1f5ed1c4bf450b60001c9091c39 (git)
Affected: 5dc615520c4dfb358245680f1904bad61116648e , < 0d666db731e95890e0eda7ea61bc925fd2be90c6 (git)
Affected: 5dc615520c4dfb358245680f1904bad61116648e , < 321993a874f571a94b5a596f1132f798c663b56e (git)
Affected: 5dc615520c4dfb358245680f1904bad61116648e , < 3f5a238f24d7b75f9efe324d3539ad388f58536e (git)
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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)
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    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-28T07:12:41+00:00",
      "cve": "CVE-2025-71129",
      "id": "CVE-2025-71129",
      "initial_release_date": "2025-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: LoongArch: BPF: Sign extend kfunc call arguments",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-71129.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.