{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-43013",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-43013"
  ],
  "published": "2026-05-01T14:17:31Z",
  "summary": "net/mlx5: lag: Check for LAG device before creating debugfs",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: lag: Check for LAG device before creating debugfs\n\n__mlx5_lag_dev_add_mdev() may return 0 (success) even when an error\noccurs that is handled gracefully. Consequently, the initialization\nflow proceeds to call mlx5_ldev_add_debugfs() even when there is no\nvalid LAG context.\n\nmlx5_ldev_add_debugfs() blindly created the debugfs directory and\nattributes. This exposed interfaces (like the members file) that rely on\na valid ldev pointer, leading to potential NULL pointer dereferences if\naccessed when ldev is NULL.\n\nAdd a check to verify that mlx5_lag_dev(dev) returns a valid pointer\nbefore attempting to create the debugfs entries.",
  "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": "6.1.168",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-43013"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a3db46d5f4df92630a96f7bc77b60e75c2353e06"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7129632cab3e4d23510b21930aa73b8d97a859f5"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/cfa774e6c920c81e700327bf10db8cb50d5db456"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c53cf44588a93000f71817a6bb87a66353c48dee"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/89c65f2fcd8801365b410f40a427cbcd7f4c28e9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/bf16bca6653679d8a514d6c1c5a2c67065033f14"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}