{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-71129",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-71129"
  ],
  "published": "2026-01-14T15:08:11Z",
  "summary": "LoongArch: BPF: Sign extend kfunc call arguments",
  "details": "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't reuse it).",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": null,
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-71129"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fd43edf357a3a1f5ed1c4bf450b60001c9091c39"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0d666db731e95890e0eda7ea61bc925fd2be90c6"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/321993a874f571a94b5a596f1132f798c663b56e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3f5a238f24d7b75f9efe324d3539ad388f58536e"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}