Vulnerability-Lookup

FKIE_CVE-2026-46273

Vulnerability from fkie_nvd - Published: 2026-06-03 18:16 - Updated: 2026-07-22 20:10

Severity

8.6 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: ibmveth: Disable GSO for packets with small MSS Some physical adapters on Power systems do not support segmentation offload when the MSS is less than 224 bytes. Attempting to send such packets causes the adapter to freeze, stopping all traffic until manually reset. Implement ndo_features_check to disable GSO for packets with small MSS values. The network stack will perform software segmentation instead. The 224-byte minimum matches ibmvnic commit <f10b09ef687f> ("ibmvnic: Enforce stronger sanity checks on GSO packets") which uses the same physical adapters in SEA configurations. The issue occurs specifically when the hardware attempts to perform segmentation (gso_segs > 1) with a small MSS. Single-segment GSO packets (gso_segs == 1) do not trigger the problematic LSO code path and are transmitted normally without segmentation. Add an ndo_features_check callback to disable GSO when MSS < 224 bytes. Also call vlan_features_check() to ensure proper handling of VLAN packets, particularly QinQ (802.1ad) configurations where the hardware parser may not support certain offload features. Validated using iptables to force small MSS values. Without the fix, the adapter freezes. With the fix, packets are segmented in software and transmission succeeds. Comprehensive regression testing completedd (MSS tests, performance, stability).

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1cdf5dbcec988d06f5f720bdf89e91073f77fa10	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3af24f0c4c31f18a4a2d927990759194832bb6e9	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/82bc89fbb82d9396fb4eaee8720ea85e2e787957	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/86fc64584811d43c9ccd74447de58620189d8b77	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9a5e984d7af910e46dcbed3ce77873e000a4f77d	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c1f261863e65b508f37416dfbc5c5d911c9b9233	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/cc427d24ac6442ffdeafd157a63c7c5b73ed4de4	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/db8012c631cb845e9ae2b4b531e17d86c9519755	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	7.1

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/ibm/ibmveth.c",
            "drivers/net/ethernet/ibm/ibmveth.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "status": "affected",
              "version": "8641dd85799f85bef5f0d1f87356aaa12cb2195e",
              "versionType": "git"
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              "version": "8641dd85799f85bef5f0d1f87356aaa12cb2195e",
              "versionType": "git"
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        {
          "defaultStatus": "affected",
          "product": "Linux",
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            "drivers/net/ethernet/ibm/ibmveth.c",
            "drivers/net/ethernet/ibm/ibmveth.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.2"
            },
            {
              "lessThan": "4.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.258",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.88",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.30",
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            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
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              "matchCriteriaId": "5D93CC1E-5DE1-4EEC-A09C-7A816AB6C025",
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              "vulnerable": true
            },
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            {
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              "matchCriteriaId": "BF39AE08-AE6D-4410-8FBE-76F6BF5BF55B",
              "versionEndExcluding": "6.18.30",
              "versionStartIncluding": "6.13",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D0893CA7-9AE6-4DFE-AC75-48967D73AD8E",
              "versionEndExcluding": "7.0.7",
              "versionStartIncluding": "6.19",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nibmveth: Disable GSO for packets with small MSS\n\nSome physical adapters on Power systems do not support segmentation\noffload when the MSS is less than 224 bytes. Attempting to send such\npackets causes the adapter to freeze, stopping all traffic until\nmanually reset.\n\nImplement ndo_features_check to disable GSO for packets with small MSS\nvalues. The network stack will perform software segmentation instead.\n\nThe 224-byte minimum matches ibmvnic\ncommit \u003cf10b09ef687f\u003e (\"ibmvnic: Enforce stronger sanity checks\non GSO packets\")\nwhich uses the same physical adapters in SEA configurations.\n\nThe issue occurs specifically when the hardware attempts to perform\nsegmentation (gso_segs \u003e 1) with a small MSS. Single-segment GSO packets\n(gso_segs == 1) do not trigger the problematic LSO code path and are\ntransmitted normally without segmentation.\n\nAdd an ndo_features_check callback to disable GSO when MSS \u003c 224 bytes.\nAlso call vlan_features_check() to ensure proper handling of VLAN packets,\nparticularly QinQ (802.1ad) configurations where the hardware parser may\nnot support certain offload features.\n\nValidated using iptables to force small MSS values. Without the fix,\nthe adapter freezes. With the fix, packets are segmented in software\nand transmission succeeds. Comprehensive regression testing completedd\n(MSS tests, performance, stability)."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nibmveth: Deshabilitar GSO para paquetes con MSS peque\u00f1o\n\nAlgunos adaptadores f\u00edsicos en sistemas Power no soportan la descarga de segmentaci\u00f3n cuando el MSS es inferior a 224 bytes. Intentar enviar dichos paquetes hace que el adaptador se congele, deteniendo todo el tr\u00e1fico hasta que se reinicie manualmente.\n\nImplementar ndo_features_check para deshabilitar GSO para paquetes con valores de MSS peque\u00f1os. La pila de red realizar\u00e1 la segmentaci\u00f3n por software en su lugar.\n\nEl m\u00ednimo de 224 bytes coincide con el commit \u003cf10b09ef687f\u003e de ibmvnic (\u0027ibmvnic: Aplicar comprobaciones de cordura m\u00e1s estrictas en los paquetes GSO\u0027) que utiliza los mismos adaptadores f\u00edsicos en configuraciones SEA.\n\nEl problema ocurre espec\u00edficamente cuando el hardware intenta realizar la segmentaci\u00f3n (gso_segs \u003e 1) con un MSS peque\u00f1o. Los paquetes GSO de un solo segmento (gso_segs == 1) no activan la ruta de c\u00f3digo LSO problem\u00e1tica y se transmiten normalmente sin segmentaci\u00f3n.\n\nA\u00f1adir una devoluci\u00f3n de llamada ndo_features_check para deshabilitar GSO cuando MSS \u003c 224 bytes. Tambi\u00e9n llamar a vlan_features_check() para asegurar el manejo adecuado de los paquetes VLAN, particularmente configuraciones QinQ (802.1ad) donde el analizador de hardware puede no soportar ciertas caracter\u00edsticas de descarga.\n\nValidado usando iptables para forzar valores de MSS peque\u00f1os. Sin la correcci\u00f3n, el adaptador se congela. Con la correcci\u00f3n, los paquetes se segmentan por software y la transmisi\u00f3n tiene \u00e9xito. Pruebas de regresi\u00f3n exhaustivas completadas (pruebas de MSS, rendimiento, estabilidad)."
    }
  ],
  "id": "CVE-2026-46273",
  "lastModified": "2026-07-22T20:10:00.127",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.6,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.0,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-06-03T18:16:29.160",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/1cdf5dbcec988d06f5f720bdf89e91073f77fa10"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3af24f0c4c31f18a4a2d927990759194832bb6e9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/82bc89fbb82d9396fb4eaee8720ea85e2e787957"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/86fc64584811d43c9ccd74447de58620189d8b77"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/9a5e984d7af910e46dcbed3ce77873e000a4f77d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c1f261863e65b508f37416dfbc5c5d911c9b9233"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/cc427d24ac6442ffdeafd157a63c7c5b73ed4de4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/db8012c631cb845e9ae2b4b531e17d86c9519755"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2026-46273 (GCVE-0-2026-46273)

Vulnerability from cvelistv5 – Published: 2026-06-03 16:19 – Updated: 2026-06-14 18:05

Title

ibmveth: Disable GSO for packets with small MSS

Summary

Severity

8.6 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/86fc64584811d43c9…
https://git.kernel.org/stable/c/9a5e984d7af910e46…
https://git.kernel.org/stable/c/1cdf5dbcec988d06f…
https://git.kernel.org/stable/c/82bc89fbb82d9396f…
https://git.kernel.org/stable/c/db8012c631cb845e9…
https://git.kernel.org/stable/c/c1f261863e65b508f…
https://git.kernel.org/stable/c/3af24f0c4c31f18a4…
https://git.kernel.org/stable/c/cc427d24ac6442ffd…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 8641dd85799f85bef5f0d1f87356aaa12cb2195e , < 86fc64584811d43c9ccd74447de58620189d8b77 (git) Affected: 8641dd85799f85bef5f0d1f87356aaa12cb2195e , < 9a5e984d7af910e46dcbed3ce77873e000a4f77d (git) Affected: 8641dd85799f85bef5f0d1f87356aaa12cb2195e , < 1cdf5dbcec988d06f5f720bdf89e91073f77fa10 (git) Affected: 8641dd85799f85bef5f0d1f87356aaa12cb2195e , < 82bc89fbb82d9396fb4eaee8720ea85e2e787957 (git) Affected: 8641dd85799f85bef5f0d1f87356aaa12cb2195e , < db8012c631cb845e9ae2b4b531e17d86c9519755 (git) Affected: 8641dd85799f85bef5f0d1f87356aaa12cb2195e , < c1f261863e65b508f37416dfbc5c5d911c9b9233 (git) Affected: 8641dd85799f85bef5f0d1f87356aaa12cb2195e , < 3af24f0c4c31f18a4a2d927990759194832bb6e9 (git) Affected: 8641dd85799f85bef5f0d1f87356aaa12cb2195e , < cc427d24ac6442ffdeafd157a63c7c5b73ed4de4 (git)
Linux	Linux	Affected: 4.2 Unaffected: 0 , < 4.2 (semver) Unaffected: 5.10.258 , ≤ 5.10.* (semver) Unaffected: 5.15.209 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.140 , ≤ 6.6.* (semver) Unaffected: 6.12.88 , ≤ 6.12.* (semver) Unaffected: 6.18.30 , ≤ 6.18.* (semver) Unaffected: 7.0.7 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/ibm/ibmveth.c",
            "drivers/net/ethernet/ibm/ibmveth.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "86fc64584811d43c9ccd74447de58620189d8b77",
              "status": "affected",
              "version": "8641dd85799f85bef5f0d1f87356aaa12cb2195e",
              "versionType": "git"
            },
            {
              "lessThan": "9a5e984d7af910e46dcbed3ce77873e000a4f77d",
              "status": "affected",
              "version": "8641dd85799f85bef5f0d1f87356aaa12cb2195e",
              "versionType": "git"
            },
            {
              "lessThan": "1cdf5dbcec988d06f5f720bdf89e91073f77fa10",
              "status": "affected",
              "version": "8641dd85799f85bef5f0d1f87356aaa12cb2195e",
              "versionType": "git"
            },
            {
              "lessThan": "82bc89fbb82d9396fb4eaee8720ea85e2e787957",
              "status": "affected",
              "version": "8641dd85799f85bef5f0d1f87356aaa12cb2195e",
              "versionType": "git"
            },
            {
              "lessThan": "db8012c631cb845e9ae2b4b531e17d86c9519755",
              "status": "affected",
              "version": "8641dd85799f85bef5f0d1f87356aaa12cb2195e",
              "versionType": "git"
            },
            {
              "lessThan": "c1f261863e65b508f37416dfbc5c5d911c9b9233",
              "status": "affected",
              "version": "8641dd85799f85bef5f0d1f87356aaa12cb2195e",
              "versionType": "git"
            },
            {
              "lessThan": "3af24f0c4c31f18a4a2d927990759194832bb6e9",
              "status": "affected",
              "version": "8641dd85799f85bef5f0d1f87356aaa12cb2195e",
              "versionType": "git"
            },
            {
              "lessThan": "cc427d24ac6442ffdeafd157a63c7c5b73ed4de4",
              "status": "affected",
              "version": "8641dd85799f85bef5f0d1f87356aaa12cb2195e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/ibm/ibmveth.c",
            "drivers/net/ethernet/ibm/ibmveth.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.2"
            },
            {
              "lessThan": "4.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.258",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.88",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.30",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.258",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.209",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.175",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.140",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.88",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.30",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.7",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nibmveth: Disable GSO for packets with small MSS\n\nSome physical adapters on Power systems do not support segmentation\noffload when the MSS is less than 224 bytes. Attempting to send such\npackets causes the adapter to freeze, stopping all traffic until\nmanually reset.\n\nImplement ndo_features_check to disable GSO for packets with small MSS\nvalues. The network stack will perform software segmentation instead.\n\nThe 224-byte minimum matches ibmvnic\ncommit \u003cf10b09ef687f\u003e (\"ibmvnic: Enforce stronger sanity checks\non GSO packets\")\nwhich uses the same physical adapters in SEA configurations.\n\nThe issue occurs specifically when the hardware attempts to perform\nsegmentation (gso_segs \u003e 1) with a small MSS. Single-segment GSO packets\n(gso_segs == 1) do not trigger the problematic LSO code path and are\ntransmitted normally without segmentation.\n\nAdd an ndo_features_check callback to disable GSO when MSS \u003c 224 bytes.\nAlso call vlan_features_check() to ensure proper handling of VLAN packets,\nparticularly QinQ (802.1ad) configurations where the hardware parser may\nnot support certain offload features.\n\nValidated using iptables to force small MSS values. Without the fix,\nthe adapter freezes. With the fix, packets are segmented in software\nand transmission succeeds. Comprehensive regression testing completedd\n(MSS tests, performance, stability)."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-14T18:05:30.074Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/86fc64584811d43c9ccd74447de58620189d8b77"
        },
        {
          "url": "https://git.kernel.org/stable/c/9a5e984d7af910e46dcbed3ce77873e000a4f77d"
        },
        {
          "url": "https://git.kernel.org/stable/c/1cdf5dbcec988d06f5f720bdf89e91073f77fa10"
        },
        {
          "url": "https://git.kernel.org/stable/c/82bc89fbb82d9396fb4eaee8720ea85e2e787957"
        },
        {
          "url": "https://git.kernel.org/stable/c/db8012c631cb845e9ae2b4b531e17d86c9519755"
        },
        {
          "url": "https://git.kernel.org/stable/c/c1f261863e65b508f37416dfbc5c5d911c9b9233"
        },
        {
          "url": "https://git.kernel.org/stable/c/3af24f0c4c31f18a4a2d927990759194832bb6e9"
        },
        {
          "url": "https://git.kernel.org/stable/c/cc427d24ac6442ffdeafd157a63c7c5b73ed4de4"
        }
      ],
      "title": "ibmveth: Disable GSO for packets with small MSS",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46273",
    "datePublished": "2026-06-03T16:19:18.056Z",
    "dateReserved": "2026-05-13T15:03:33.109Z",
    "dateUpdated": "2026-06-14T18:05:30.074Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

FKIE_CVE-2026-46273

CVE-2026-46273 (GCVE-0-2026-46273)

Tags

Sightings

Nomenclature