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CVE-2026-64110

Estado: AnalizadaMedia (5.5)—

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

igc: fix potential skb leak in igc_fpe_xmit_smd_frame()

When igc_fpe_init_tx_descriptor() fails, no one takes care of an allocated skb, leaking it. [1] Use dev_kfree_skb_any() on failure.

Tested on an I226 adapter with the following command, while injecting faults in igc_fpe_init_tx_descriptor() to trigger the error path. # ethtool --set-mm $DEV verify-enabled on tx-enabled on pmac-enabled on

Detalles técnicos trazas, registros y código del informe original
[1]
unreferenced object 0xffff888113c6cdc0 (size 224):
...
  backtrace (crc be3d3fda):
    kmem_cache_alloc_node_noprof+0x3b1/0x410
    __alloc_skb+0xde/0x830
    igc_fpe_xmit_smd_frame.isra.0+0xad/0x1b0
    igc_fpe_send_mpacket+0x37/0x90
    ethtool_mmsv_verify_timer+0x15e/0x300

CVSS

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)

CWE

Referencias

JSON original (NVD)

Mostrar
{
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          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
        "exploitabilityScore": 1.8
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              "status": "unaffected",
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          ],
          "programFiles": [
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          "defaultStatus": "affected"
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      ]
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  ],
  "published": "2026-07-19T16:17:52.370",
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    }
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nigc: fix potential skb leak in igc_fpe_xmit_smd_frame()\n\nWhen igc_fpe_init_tx_descriptor() fails, no one takes care of an\nallocated skb, leaking it. [1]\nUse dev_kfree_skb_any() on failure.\n\nTested on an I226 adapter with the following command, while injecting\nfaults in igc_fpe_init_tx_descriptor() to trigger the error path.\n # ethtool --set-mm $DEV verify-enabled on tx-enabled on pmac-enabled on\n\n[1]\nunreferenced object 0xffff888113c6cdc0 (size 224):\n...\n  backtrace (crc be3d3fda):\n    kmem_cache_alloc_node_noprof+0x3b1/0x410\n    __alloc_skb+0xde/0x830\n    igc_fpe_xmit_smd_frame.isra.0+0xad/0x1b0\n    igc_fpe_send_mpacket+0x37/0x90\n    ethtool_mmsv_verify_timer+0x15e/0x300"
    }
  ],
  "lastModified": "2026-08-12T15:51:01.650",
  "configurations": [
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}