{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-89456",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-89456"
  ],
  "published": "2026-09-11T19:47:07Z",
  "summary": "s390/dasd: Propagate partial completion length across ERP recovery",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/dasd: Propagate partial completion length across ERP recovery\n\ndasd_default_erp_postaction() copies the timing and device state from\nthe finished ERP request back to the original request but drops\nproc_bytes. A request that was partially completed, an ESE read of a\nnot-yet-allocated track returns fewer bytes than requested, and then\nrecovered through the ERP chain loses its partial-completion length.\n__dasd_cleanup_cqr() then sees proc_bytes == 0 and completes the whole\nrequest instead of requeueing the remainder, silently returning zeroed\ndata for the part that was never read.\n\nCarry proc_bytes over to the original request like the other\nper-request state.",
  "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": "6.1.188",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-89456"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/9e063165d3fe58db2a517717b830f17e82d03467"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6b0954c8a259da1e4aa745989f82723947acfb46"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d0a2f97d8c97134aa7f6a191940b7bab4bb42f5f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f735b9710f0c8fe72c1060103e865f4ae678190b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d6b8778b1b82aa3a8dbf8612080f635b834bd16b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ceafb262475ac6cb3a7d07b1102608be2b216b99"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/15ec03452c18e8d288e519837d21b308300d74b2"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6fb5ba2e7e43173a3761e46f091070a8185efa14"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-09-14T12:06:03Z"
  }
}