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CVE-2025-68353

Estado: AplazadaSin puntuar—

In the Linux kernel, the following vulnerability has been resolved:

net: vxlan: prevent NULL deref in vxlan_xmit_one

Neither sock4 nor sock6 pointers are guaranteed to be non-NULL in vxlan_xmit_one, e.g. if the iface is brought down. This can lead to the following NULL dereference:

Mentioned commits changed the code path in vxlan_xmit_one and as a side effect the sock4/6 pointer validity checks in vxlan(6)_get_route were lost. Fix this by adding back checks.

Since both commits being fixed were released in the same version (v6.7) and are strongly related, bundle the fixes in a single commit.

Detalles técnicos trazas, registros y código del informe original
  BUG: kernel NULL pointer dereference, address: 0000000000000010
  Oops: Oops: 0000 [#1] SMP NOPTI
  RIP: 0010:vxlan_xmit_one+0xbb3/0x1580
  Call Trace:
   vxlan_xmit+0x429/0x610
   dev_hard_start_xmit+0x55/0xa0
   __dev_queue_xmit+0x6d0/0x7f0
   ip_finish_output2+0x24b/0x590
   ip_output+0x63/0x110

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-68353",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6f19b2c136d98a84d79030b53e23d405edfdc783",
              "lessThan": "4ac26aafdc8c7271414e2e7c0b2cb266a26591bc",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6f19b2c136d98a84d79030b53e23d405edfdc783",
              "lessThan": "1f73a56f986005f0bc64ed23873930e2ee4f5911",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/vxlan/vxlan_core.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.7"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.7",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.18.2",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/vxlan/vxlan_core.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-12-24T11:15:58.653",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1f73a56f986005f0bc64ed23873930e2ee4f5911",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/4ac26aafdc8c7271414e2e7c0b2cb266a26591bc",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "lastModified": "2026-06-17T09:58:59.233",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}