{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "6f19b2c136d98a84d79030b53e23d405edfdc783"
            },
            {
              "fixed": "4ac26aafdc8c7271414e2e7c0b2cb266a26591bc"
            },
            {
              "fixed": "1f73a56f986005f0bc64ed23873930e2ee4f5911"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.18.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68353.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: vxlan: prevent NULL deref in vxlan_xmit_one\n\nNeither sock4 nor sock6 pointers are guaranteed to be non-NULL in\nvxlan_xmit_one, e.g. if the iface is brought down. This can lead to the\nfollowing NULL dereference:\n\n  BUG: kernel NULL pointer dereference, address: 0000000000000010\n  Oops: Oops: 0000 [#1] SMP NOPTI\n  RIP: 0010:vxlan_xmit_one+0xbb3/0x1580\n  Call Trace:\n   vxlan_xmit+0x429/0x610\n   dev_hard_start_xmit+0x55/0xa0\n   __dev_queue_xmit+0x6d0/0x7f0\n   ip_finish_output2+0x24b/0x590\n   ip_output+0x63/0x110\n\nMentioned commits changed the code path in vxlan_xmit_one and as a side\neffect the sock4/6 pointer validity checks in vxlan(6)_get_route were\nlost. Fix this by adding back checks.\n\nSince both commits being fixed were released in the same version (v6.7)\nand are strongly related, bundle the fixes in a single commit.",
  "id": "CVE-2025-68353",
  "modified": "2026-04-01T23:09:50.001717280Z",
  "published": "2025-12-24T10:32:44.068Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1f73a56f986005f0bc64ed23873930e2ee4f5911"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ac26aafdc8c7271414e2e7c0b2cb266a26591bc"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68353.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68353"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.3",
  "summary": "net: vxlan: prevent NULL deref in vxlan_xmit_one"
}