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CVE-2025-68200

Estado: AplazadaSin puntuar—

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

bpf: Add bpf_prog_run_data_pointers()

syzbot found that cls_bpf_classify() is able to change tc_skb_cb(skb)->drop_reason triggering a warning in sk_skb_reason_drop().

struct tc_skb_cb has been added in commit ec624fe740b4 ("net/sched: Extend qdisc control block with tc control block"), which added a wrong interaction with db58ba459202 ("bpf: wire in data and data_end for cls_act_bpf").

drop_reason was added later.

Add bpf_prog_run_data_pointers() helper to save/restore the net_sched storage colliding with BPF data_meta/data_end.

Detalles técnicos trazas, registros y código del informe original
WARNING: CPU: 0 PID: 5965 at net/core/skbuff.c:1192 __sk_skb_reason_drop net/core/skbuff.c:1189 [inline]
WARNING: CPU: 0 PID: 5965 at net/core/skbuff.c:1192 sk_skb_reason_drop+0x76/0x170 net/core/skbuff.c:1214

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-2025-68200",
  "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": "0d76daf2013ce1da20eab5e26bd81d983e1c18fb",
              "lessThan": "c4cdd143c35974a2cedd000fa9eb3accc3023b20",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ec624fe740b416fb68d536b37fb8eef46f90b5c2",
              "lessThan": "5e149d8a8e732126fb6014efd60075cf63a73f91",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ec624fe740b416fb68d536b37fb8eef46f90b5c2",
              "lessThan": "baa61dcaa50b7141048c8d2aede7fe9ed8f21d11",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ec624fe740b416fb68d536b37fb8eef46f90b5c2",
              "lessThan": "6392e5f4b1a3cce10e828309baf35d22abd3457d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ec624fe740b416fb68d536b37fb8eef46f90b5c2",
              "lessThan": "8dd2fe5f5d586c8e87307b7a271f6b994afcc006",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ec624fe740b416fb68d536b37fb8eef46f90b5c2",
              "lessThan": "4ef92743625818932b9c320152b58274c05e5053",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5.15.13",
              "lessThan": "5.15.197",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "include/linux/filter.h",
            "net/sched/act_bpf.c",
            "net/sched/cls_bpf.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.16"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.16",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.15.197",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.159",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.117",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.59",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.17.9",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "include/linux/filter.h",
            "net/sched/act_bpf.c",
            "net/sched/cls_bpf.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-12-16T14:15:52.820",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/4ef92743625818932b9c320152b58274c05e5053",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5e149d8a8e732126fb6014efd60075cf63a73f91",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6392e5f4b1a3cce10e828309baf35d22abd3457d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8dd2fe5f5d586c8e87307b7a271f6b994afcc006",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/baa61dcaa50b7141048c8d2aede7fe9ed8f21d11",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c4cdd143c35974a2cedd000fa9eb3accc3023b20",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Add bpf_prog_run_data_pointers()\n\nsyzbot found that cls_bpf_classify() is able to change\ntc_skb_cb(skb)->drop_reason triggering a warning in sk_skb_reason_drop().\n\nWARNING: CPU: 0 PID: 5965 at net/core/skbuff.c:1192 __sk_skb_reason_drop net/core/skbuff.c:1189 [inline]\nWARNING: CPU: 0 PID: 5965 at net/core/skbuff.c:1192 sk_skb_reason_drop+0x76/0x170 net/core/skbuff.c:1214\n\nstruct tc_skb_cb has been added in commit ec624fe740b4 (\"net/sched:\nExtend qdisc control block with tc control block\"), which added a wrong\ninteraction with db58ba459202 (\"bpf: wire in data and data_end for\ncls_act_bpf\").\n\ndrop_reason was added later.\n\nAdd bpf_prog_run_data_pointers() helper to save/restore the net_sched\nstorage colliding with BPF data_meta/data_end."
    }
  ],
  "lastModified": "2026-06-17T09:58:43.570",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}