{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-98572",
  "modified": "2026-10-19T04:30:01Z",
  "upstream": [
    "CVE-2026-98572"
  ],
  "published": "2026-10-18T15:22:13Z",
  "summary": "bpf: Fix immediate JMP JEQ/JNE on MIPS32",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix immediate JMP JEQ/JNE on MIPS32\n\nAn addu instruction was emitted instead of addiu, causing the immediate\nvalue 1 to be interpreted as register $at. This made the comparison\nresult invalid when the immediate operand was negative. Note that $at\nis mapped to BPF_REG_AX, which is used for constant blinding.\n\nFix the instruction to use the immediate form.\n\nFound with test_bpf on MIPS32r1 emulated by QEMU.",
  "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": "6.1.189",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-98572"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1547e9f3a7d71971216e6dba30270cae13fe4e02"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/beeae92e70e705e90a0d6d9b3b8498ee3b92f495"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6f939529ed6c580e9b6c5daa20be67fa0b3d4cf0"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/876ef04c75c2751acfd355606fca3eced71dec65"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1bd91670966a7142ac94f2cebe2b5ae6bf5cb0c8"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/db762fd96be225bd06161c9631160c755d891693"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-10-18T15:22:13Z"
  }
}