{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2023-52509",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2023-52509"
  ],
  "published": "2024-03-02T21:53:07Z",
  "summary": "ravb: Fix use-after-free issue in ravb_tx_timeout_work()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nravb: Fix use-after-free issue in ravb_tx_timeout_work()\n\nThe ravb_stop() should call cancel_work_sync(). Otherwise,\nravb_tx_timeout_work() is possible to use the freed priv after\nravb_remove() was called like below:\n\nCPU0\t\t\tCPU1\n\t\t\travb_tx_timeout()\nravb_remove()\nunregister_netdev()\nfree_netdev(ndev)\n// free priv\n\t\t\travb_tx_timeout_work()\n\t\t\t// use priv\n\nunregister_netdev() will call .ndo_stop() so that ravb_stop() is\ncalled. And, after phy_stop() is called, netif_carrier_off()\nis also called. So that .ndo_tx_timeout() will not be called\nafter phy_stop().",
  "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": "6.1.59",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-52509"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/65d34cfd4e347054eb4193bc95d9da7eaa72dee5"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/db9aafa19547833240f58c2998aed7baf414dc82"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/616761cf9df9af838c0a1a1232a69322a9eb67e6"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6f6fa8061f756aedb93af12a8a5d3cf659127965"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/105abd68ad8f781985113aee2e92e0702b133705"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3971442870713de527684398416970cf025b4f89"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T11:24:39Z"
  }
}