{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-97477",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-97477"
  ],
  "published": "2026-09-24T16:08:25Z",
  "summary": "RDMA/counter: Fix num_counters leak on bind_qp failure in alloc_and_bind()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/counter: Fix num_counters leak on bind_qp failure in alloc_and_bind()\n\nWhen __rdma_counter_bind_qp() fails in alloc_and_bind(), the error path\njumps to err_mode which frees the counter without decrementing\nport_counter->num_counters. The only place that decrements is\nrdma_counter_free(), which is unreachable since the counter was never\nsuccessfully bound.\n\nThis leak accumulates across repeated failures, permanently preventing\nthe port from switching to AUTO mode (-EBUSY in __counter_set_mode())\nand blocking the MANUAL\u2192NONE auto-revert in rdma_counter_free(). When\nthe mode was NONE before the call, the MANUAL mode set by\n__counter_set_mode() also leaks since the revert logic is never\nreached.\n\nAdd an err_bind label between the num_counters increment and the\nexisting err_mode label. It decrements num_counters and mirrors the\nMANUAL\u2192NONE revert from rdma_counter_free(), ensuring the port state\nis fully restored on bind failure.",
  "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-2026-97477"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/da95cb016812c0e012ea839f191926e35ca8f57f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4fbc8230009f5b1bcd13cc74c5a6a43ddba141fd"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-09-28T05:31:34Z"
  }
}