CVE-2026-64110 (GCVE-0-2026-64110)

Vulnerability from cvelistv5 – Published: 2026-07-19 15:40 – Updated: 2026-07-19 15:40
VLAI
Title
igc: fix potential skb leak in igc_fpe_xmit_smd_frame()
Summary
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 [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
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5422570c0010bb968738f9256eb2bf83e79b4d63 , < f1bafd35f11b3aca1c7bb38da173b8787364a04c (git)
Affected: 5422570c0010bb968738f9256eb2bf83e79b4d63 , < 3ebf056556138e74c640e6dc2b3848abd398b460 (git)
Affected: 5422570c0010bb968738f9256eb2bf83e79b4d63 , < e935c37b8a94bb256fada6395a5d05e1c0c6bdaf (git)
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Linux Linux Affected: 6.16
Unaffected: 0 , < 6.16 (semver)
Unaffected: 6.18.34 , ≤ 6.18.* (semver)
Unaffected: 7.0.11 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/igc/igc_tsn.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "versionType": "git"
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              "status": "affected",
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              "versionType": "git"
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              "versionType": "git"
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "6.16"
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              "status": "unaffected",
              "version": "0",
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              "version": "6.18.34",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.11",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.11",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-19T15:40:12.224Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f1bafd35f11b3aca1c7bb38da173b8787364a04c"
        },
        {
          "url": "https://git.kernel.org/stable/c/3ebf056556138e74c640e6dc2b3848abd398b460"
        },
        {
          "url": "https://git.kernel.org/stable/c/e935c37b8a94bb256fada6395a5d05e1c0c6bdaf"
        }
      ],
      "title": "igc: fix potential skb leak in igc_fpe_xmit_smd_frame()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64110",
    "datePublished": "2026-07-19T15:40:12.224Z",
    "dateReserved": "2026-07-19T07:54:57.034Z",
    "dateUpdated": "2026-07-19T15:40:12.224Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-64110",
      "date": "2026-07-21",
      "epss": "0.00166",
      "percentile": "0.06194"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-64110\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-07-19T16:17:52.370\",\"lastModified\":\"2026-07-19T16:17:52.370\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"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\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/net/ethernet/intel/igc/igc_tsn.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5422570c0010bb968738f9256eb2bf83e79b4d63\",\"lessThan\":\"f1bafd35f11b3aca1c7bb38da173b8787364a04c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5422570c0010bb968738f9256eb2bf83e79b4d63\",\"lessThan\":\"3ebf056556138e74c640e6dc2b3848abd398b460\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5422570c0010bb968738f9256eb2bf83e79b4d63\",\"lessThan\":\"e935c37b8a94bb256fada6395a5d05e1c0c6bdaf\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/net/ethernet/intel/igc/igc_tsn.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.16\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.16\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.34\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0.11\",\"lessThanOrEqual\":\"7.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3ebf056556138e74c640e6dc2b3848abd398b460\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e935c37b8a94bb256fada6395a5d05e1c0c6bdaf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f1bafd35f11b3aca1c7bb38da173b8787364a04c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-07-21T06:33:35+00:00",
      "cve": "CVE-2026-64110",
      "id": "CVE-2026-64110",
      "initial_release_date": "2026-07-19T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: igc: fix potential skb leak in igc_fpe_xmit_smd_frame()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-64110.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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