{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-39506",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-39506"
  ],
  "published": "2024-07-12T12:21:19Z",
  "summary": "liquidio: Adjust a NULL pointer handling path in lio_vf_rep_copy_packet",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nliquidio: Adjust a NULL pointer handling path in lio_vf_rep_copy_packet\n\nIn lio_vf_rep_copy_packet() pg_info->page is compared to a NULL value,\nbut then it is unconditionally passed to skb_add_rx_frag() which looks\nstrange and could lead to null pointer dereference.\n\nlio_vf_rep_copy_packet() call trace looks like:\n\tocteon_droq_process_packets\n\t octeon_droq_fast_process_packets\n\t  octeon_droq_dispatch_pkt\n\t   octeon_create_recv_info\n\t    ...search in the dispatch_list...\n\t     ->disp_fn(rdisp->rinfo, ...)\n\t      lio_vf_rep_pkt_recv(struct octeon_recv_info *recv_info, ...)\nIn this path there is no code which sets pg_info->page to NULL.\nSo this check looks unneeded and doesn't solve potential problem.\nBut I guess the author had reason to add a check and I have no such card\nand can't do real test.\nIn addition, the code in the function liquidio_push_packet() in\nliquidio/lio_core.c does exactly the same.\n\nBased on this, I consider the most acceptable compromise solution to\nadjust this issue by moving skb_add_rx_frag() into conditional scope.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.",
  "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": "6.1.95",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-39506"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/87d6bdc006f0cbf297a3b2ad6e40ede4c3ee5dc2"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/dcc7440f32c7a26b067aff6e7d931ec593024a79"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/cbf18d8128a753cb632bef39470d19befd9c7347"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a86490a3712cc513113440a606a0e77130abd47c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f1ab15a09492a5ae8ab1e2c35ba2cf9e150d25ee"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fd2b613bc4c508e55c1221c6595bb889812a4fea"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a6f4d0ec170a46b5f453cacf55dff5989b42bbfa"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c44711b78608c98a3e6b49ce91678cd0917d5349"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}