{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-98015",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-98015"
  ],
  "published": "2026-09-25T10:24:31Z",
  "summary": "net/mlx5: E-Switch: fix use-after-free in mlx5_eswitch_termtbl_put",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: E-Switch: fix use-after-free in mlx5_eswitch_termtbl_put\n\nIn mlx5_eswitch_termtbl_put(), the zero-ref cleanup check reads\ntt->ref_count after termtbl_mutex has been released.  Two concurrent\ncallers on the same mlx5_termtbl_handle race: one decrements ref_count\nto zero, removes the hash entry, and calls kfree(tt) while the other\nhas already dropped the mutex and is about to evaluate\nif (!tt->ref_count), producing a use-after-free.\n\nFix this by capturing the result of the decrement into a stack-local\nlast variable before dropping the mutex.  The cleanup decision is now\nmade entirely under termtbl_mutex, and tt is not touched after\nkfree.",
  "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": "6.1.189",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-98015"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e3ee194a790896fa92fea20b5385a354be2f2c12"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b1398c9dfb5d3d4faaf6905ff7d98110a5d2c797"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/92f581cac93a71723456ac79ef54d9f60a251b42"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a5833fdf53350b8b95a558fcf0056ddb1c0fe154"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/304ea40ef4561671503c36e47da44a0a31b71e36"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e393789e92310d7c66f57c876101779c90816a12"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/18b2969073879b9cce24e1a78b118bdad54518d1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7ee07f601f8f507c9faf25c68a49396ab8950596"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-10-03T11:04:09Z"
  }
}