{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-92509",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-92509"
  ],
  "published": "2026-09-17T16:10:40Z",
  "summary": "RDMA/core: Fix potential use after free in counter_release()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: Fix potential use after free in counter_release()\n\nWhen accessing a counter via the netlink path the only synchronization\nmechanism for the said counter is rdma_restrack_get().\nCurrently, rdma_restrack_del() is invoked at the end of\ncounter_release(), which is too late, since by that point\nvendor-specific resources associated with the counter might already be\nfreed. This can leave a short window where the counter remains\naccessible through restrack, leading to a potential use-after-free.\n\nFix this by moving the rdma_restrack_del() call to be before the\nfreeing of the vendor-specific resources, ensuring that the counter is\nremoved from restrack before its internal resources are released.\nThis guarantees that no new users hold references to a counter that is\nin the process of destruction.",
  "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-2026-92509"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5eb0c57a8b568eb08f464861d84d518a2af939ac"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d5cc211e8c39e46f357d30a092d683e84d560de9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2f0c6705e26ba92c0c6b0b0908a2d3f35a039d5b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8c013e3a8d8273da4d47bf1c27f016a3551996f5"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/64c72390d8407ea86de712a477c796b07d37abc4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/235ef2d0e750885c29340b0fc40620a7a4f52e12"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-09-17T16:10:40Z"
  }
}