{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-92508",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-92508"
  ],
  "published": "2026-09-17T16:10:40Z",
  "summary": "RDMA/core: Fix potential use after free in ib_free_cq()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: Fix potential use after free in ib_free_cq()\n\nWhen accessing a CQ via the netlink path the only synchronization\nmechanism for the said CQ is rdma_restrack_get().\nCurrently, rdma_restrack_del() is invoked at the end of\nib_free_cq(), which is too late, since by that point\nvendor-specific resources associated with the CQ might already be\nfreed. This can leave a short window where the CQ remains accessible\nthrough restrack, leading to a potential use-after-free.\n\nFix this by moving the rdma_restrack_del() call to be before the freeing\nof the vendor-specific resources ensuring that the CQ is removed from\nrestrack before its internal resources are released.\nThis guarantees that no new users hold references to a CQ that is in\nthe 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-2026-92508"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a804b162f9bc2b38b2ed1b4752eea9faadb1645b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/91f8a17a22ab615a03743120e19935e731f28fb9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/76f2cb4f721815c3b6262a6dc2151de88646924c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b8dcca427096fc9c50f1b376847fea72bc842d31"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/9abea37942534eeb049335476178696b654b000c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/43403fe45379c64fa6276e5a8ede44493e5d2d3d"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/29dc2f8e1c97372c2871a70088707933515fbd5b"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-09-18T17:55:42Z"
  }
}