Vulnerability-Lookup

FKIE_CVE-2022-49066

Vulnerability from fkie_nvd - Published: 2025-02-26 07:00 - Updated: 2026-06-17 05:16

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: veth: Ensure eth header is in skb's linear part After feeding a decapsulated packet to a veth device with act_mirred, skb_headlen() may be 0. But veth_xmit() calls __dev_forward_skb(), which expects at least ETH_HLEN byte of linear data (as __dev_forward_skb2() calls eth_type_trans(), which pulls ETH_HLEN bytes unconditionally). Use pskb_may_pull() to ensure veth_xmit() respects this constraint. kernel BUG at include/linux/skbuff.h:2328! RIP: 0010:eth_type_trans+0xcf/0x140 Call Trace: <IRQ> __dev_forward_skb2+0xe3/0x160 veth_xmit+0x6e/0x250 [veth] dev_hard_start_xmit+0xc7/0x200 __dev_queue_xmit+0x47f/0x520 ? skb_ensure_writable+0x85/0xa0 ? skb_mpls_pop+0x98/0x1c0 tcf_mirred_act+0x442/0x47e [act_mirred] tcf_action_exec+0x86/0x140 fl_classify+0x1d8/0x1e0 [cls_flower] ? dma_pte_clear_level+0x129/0x1a0 ? dma_pte_clear_level+0x129/0x1a0 ? prb_fill_curr_block+0x2f/0xc0 ? skb_copy_bits+0x11a/0x220 __tcf_classify+0x58/0x110 tcf_classify_ingress+0x6b/0x140 __netif_receive_skb_core.constprop.0+0x47d/0xfd0 ? __iommu_dma_unmap_swiotlb+0x44/0x90 __netif_receive_skb_one_core+0x3d/0xa0 netif_receive_skb+0x116/0x170 be_process_rx+0x22f/0x330 [be2net] be_poll+0x13c/0x370 [be2net] __napi_poll+0x2a/0x170 net_rx_action+0x22f/0x2f0 __do_softirq+0xca/0x2a8 __irq_exit_rcu+0xc1/0xe0 common_interrupt+0x83/0xa0

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1ef0088e43af1de4e3b365218c4d3179d9a37eec	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2fd90b86dff413fbf8128780c04ea9c6849c16e2	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3de2a02b60a4ef0ab76263216f08c7d095fc7c42	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/46bc359fec0c6d87b70d7a008bcd9a5e30dd6f27	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/726e2c5929de841fdcef4e2bf995680688ae1b87	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/93940fc4cb81840dc0fa202de48cccb949a0261d	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d417a859221f127e8edf09c14b76ab50f825e171	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d67c900f1947d64ba8a64f693504bcaab8d9000c	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	5.18
linux	linux_kernel	5.18

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/veth.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3de2a02b60a4ef0ab76263216f08c7d095fc7c42",
              "status": "affected",
              "version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568",
              "versionType": "git"
            },
            {
              "lessThan": "d417a859221f127e8edf09c14b76ab50f825e171",
              "status": "affected",
              "version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568",
              "versionType": "git"
            },
            {
              "lessThan": "1ef0088e43af1de4e3b365218c4d3179d9a37eec",
              "status": "affected",
              "version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568",
              "versionType": "git"
            },
            {
              "lessThan": "2fd90b86dff413fbf8128780c04ea9c6849c16e2",
              "status": "affected",
              "version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568",
              "versionType": "git"
            },
            {
              "lessThan": "d67c900f1947d64ba8a64f693504bcaab8d9000c",
              "status": "affected",
              "version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568",
              "versionType": "git"
            },
            {
              "lessThan": "93940fc4cb81840dc0fa202de48cccb949a0261d",
              "status": "affected",
              "version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568",
              "versionType": "git"
            },
            {
              "lessThan": "46bc359fec0c6d87b70d7a008bcd9a5e30dd6f27",
              "status": "affected",
              "version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568",
              "versionType": "git"
            },
            {
              "lessThan": "726e2c5929de841fdcef4e2bf995680688ae1b87",
              "status": "affected",
              "version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/veth.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.24"
            },
            {
              "lessThan": "2.6.24",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.311",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.276",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.239",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.190",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "03755CB2-5811-4C2A-9848-10A1F5F86F9C",
              "versionEndExcluding": "4.9.311",
              "versionStartIncluding": "2.6.24",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6D9B028C-6313-47F9-94B7-5F8122345E49",
              "versionEndExcluding": "4.14.276",
              "versionStartIncluding": "4.10",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "712D9B45-4B53-4563-94B5-F758AFBBFB0D",
              "versionEndExcluding": "4.19.239",
              "versionStartIncluding": "4.15",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E0ADBA6D-47D8-4518-8D10-9B9196DE680B",
              "versionEndExcluding": "5.4.190",
              "versionStartIncluding": "4.20",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0460A5D2-3024-497A-B799-23E025B91972",
              "versionEndExcluding": "5.10.112",
              "versionStartIncluding": "5.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "05ABCC3F-88A9-47F9-9D40-8665747B2E43",
              "versionEndExcluding": "5.15.35",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E22C86CB-06CD-4D16-AB2A-F21EE8199262",
              "versionEndExcluding": "5.17.4",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "6AD94161-84BB-42E6-9882-4FC0C42E9FC1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.18:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "7AB06DDF-3C2B-416D-B448-E990D8FF67A9",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nveth: Ensure eth header is in skb\u0027s linear part\n\nAfter feeding a decapsulated packet to a veth device with act_mirred,\nskb_headlen() may be 0. But veth_xmit() calls __dev_forward_skb(),\nwhich expects at least ETH_HLEN byte of linear data (as\n__dev_forward_skb2() calls eth_type_trans(), which pulls ETH_HLEN bytes\nunconditionally).\n\nUse pskb_may_pull() to ensure veth_xmit() respects this constraint.\n\nkernel BUG at include/linux/skbuff.h:2328!\nRIP: 0010:eth_type_trans+0xcf/0x140\nCall Trace:\n \u003cIRQ\u003e\n __dev_forward_skb2+0xe3/0x160\n veth_xmit+0x6e/0x250 [veth]\n dev_hard_start_xmit+0xc7/0x200\n __dev_queue_xmit+0x47f/0x520\n ? skb_ensure_writable+0x85/0xa0\n ? skb_mpls_pop+0x98/0x1c0\n tcf_mirred_act+0x442/0x47e [act_mirred]\n tcf_action_exec+0x86/0x140\n fl_classify+0x1d8/0x1e0 [cls_flower]\n ? dma_pte_clear_level+0x129/0x1a0\n ? dma_pte_clear_level+0x129/0x1a0\n ? prb_fill_curr_block+0x2f/0xc0\n ? skb_copy_bits+0x11a/0x220\n __tcf_classify+0x58/0x110\n tcf_classify_ingress+0x6b/0x140\n __netif_receive_skb_core.constprop.0+0x47d/0xfd0\n ? __iommu_dma_unmap_swiotlb+0x44/0x90\n __netif_receive_skb_one_core+0x3d/0xa0\n netif_receive_skb+0x116/0x170\n be_process_rx+0x22f/0x330 [be2net]\n be_poll+0x13c/0x370 [be2net]\n __napi_poll+0x2a/0x170\n net_rx_action+0x22f/0x2f0\n __do_softirq+0xca/0x2a8\n __irq_exit_rcu+0xc1/0xe0\n common_interrupt+0x83/0xa0"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: veth: Asegurarse de que el encabezado eth est\u00e9 en la parte lineal de skb Despu\u00e9s de alimentar un paquete desencapsulado a un dispositivo veth con act_mirred, skb_headlen() puede ser 0. Pero veth_xmit() llama a __dev_forward_skb(), que espera al menos ETH_HLEN bytes de datos lineales (como __dev_forward_skb2() llama a eth_type_trans(), que extrae ETH_HLEN bytes incondicionalmente). Utilice pskb_may_pull() para asegurarse de que veth_xmit() respete esta restricci\u00f3n. \u00a1ERROR del kernel en include/linux/skbuff.h:2328! RIP: 0010:eth_type_trans+0xcf/0x140 Rastreo de llamadas:  __dev_forward_skb2+0xe3/0x160 veth_xmit+0x6e/0x250 [veth] dev_hard_start_xmit+0xc7/0x200 __dev_queue_xmit+0x47f/0x520 ? skb_ensure_writable+0x85/0xa0 ? skb_mpls_pop+0x98/0x1c0 tcf_mirred_act+0x442/0x47e [act_mirred] tcf_action_exec+0x86/0x140 fl_classify+0x1d8/0x1e0 [cls_flower] ? skb_copy_bits+0x11a/0x220 __tcf_classify+0x58/0x110 tcf_classify_ingress+0x6b/0x140 __netif_receive_skb_core.constprop.0+0x47d/0xfd0 ? __iommu_dma_unmap_swiotlb+0x44/0x90 __netif_receive_skb_one_core+0x3d/0xa0 netif_receive_skb+0x116/0x170 be_process_rx+0x22f/0x330 [be2net] be_poll+0x13c/0x370 [be2net] __napi_poll+0x2a/0x170 net_rx_action+0x22f/0x2f0 __do_softirq+0xca/0x2a8 __irq_exit_rcu+0xc1/0xe0 common_interrupt+0x83/0xa0"
    }
  ],
  "id": "CVE-2022-49066",
  "lastModified": "2026-06-17T05:16:59.227",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-02-26T07:00:43.820",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/1ef0088e43af1de4e3b365218c4d3179d9a37eec"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/2fd90b86dff413fbf8128780c04ea9c6849c16e2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3de2a02b60a4ef0ab76263216f08c7d095fc7c42"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/46bc359fec0c6d87b70d7a008bcd9a5e30dd6f27"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/726e2c5929de841fdcef4e2bf995680688ae1b87"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/93940fc4cb81840dc0fa202de48cccb949a0261d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/d417a859221f127e8edf09c14b76ab50f825e171"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/d67c900f1947d64ba8a64f693504bcaab8d9000c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2022-49066 (GCVE-0-2022-49066)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:54 – Updated: 2026-05-11 18:52

Title

veth: Ensure eth header is in skb's linear part

Summary

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7018 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/3de2a02b60a4ef0ab…
https://git.kernel.org/stable/c/d417a859221f127e8…
https://git.kernel.org/stable/c/1ef0088e43af1de4e…
https://git.kernel.org/stable/c/2fd90b86dff413fbf…
https://git.kernel.org/stable/c/d67c900f1947d64ba…
https://git.kernel.org/stable/c/93940fc4cb81840dc…
https://git.kernel.org/stable/c/46bc359fec0c6d87b…
https://git.kernel.org/stable/c/726e2c5929de841fd…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: e314dbdc1c0dc6a548ecf0afce28ecfd538ff568 , < 3de2a02b60a4ef0ab76263216f08c7d095fc7c42 (git) Affected: e314dbdc1c0dc6a548ecf0afce28ecfd538ff568 , < d417a859221f127e8edf09c14b76ab50f825e171 (git) Affected: e314dbdc1c0dc6a548ecf0afce28ecfd538ff568 , < 1ef0088e43af1de4e3b365218c4d3179d9a37eec (git) Affected: e314dbdc1c0dc6a548ecf0afce28ecfd538ff568 , < 2fd90b86dff413fbf8128780c04ea9c6849c16e2 (git) Affected: e314dbdc1c0dc6a548ecf0afce28ecfd538ff568 , < d67c900f1947d64ba8a64f693504bcaab8d9000c (git) Affected: e314dbdc1c0dc6a548ecf0afce28ecfd538ff568 , < 93940fc4cb81840dc0fa202de48cccb949a0261d (git) Affected: e314dbdc1c0dc6a548ecf0afce28ecfd538ff568 , < 46bc359fec0c6d87b70d7a008bcd9a5e30dd6f27 (git) Affected: e314dbdc1c0dc6a548ecf0afce28ecfd538ff568 , < 726e2c5929de841fdcef4e2bf995680688ae1b87 (git)
Linux	Linux	Affected: 2.6.24 Unaffected: 0 , < 2.6.24 (semver) Unaffected: 4.9.311 , ≤ 4.9.* (semver) Unaffected: 4.14.276 , ≤ 4.14.* (semver) Unaffected: 4.19.239 , ≤ 4.19.* (semver) Unaffected: 5.4.190 , ≤ 5.4.* (semver) Unaffected: 5.10.112 , ≤ 5.10.* (semver) Unaffected: 5.15.35 , ≤ 5.15.* (semver) Unaffected: 5.17.4 , ≤ 5.17.* (semver) Unaffected: 5.18 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/veth.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3de2a02b60a4ef0ab76263216f08c7d095fc7c42",
              "status": "affected",
              "version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568",
              "versionType": "git"
            },
            {
              "lessThan": "d417a859221f127e8edf09c14b76ab50f825e171",
              "status": "affected",
              "version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568",
              "versionType": "git"
            },
            {
              "lessThan": "1ef0088e43af1de4e3b365218c4d3179d9a37eec",
              "status": "affected",
              "version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568",
              "versionType": "git"
            },
            {
              "lessThan": "2fd90b86dff413fbf8128780c04ea9c6849c16e2",
              "status": "affected",
              "version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568",
              "versionType": "git"
            },
            {
              "lessThan": "d67c900f1947d64ba8a64f693504bcaab8d9000c",
              "status": "affected",
              "version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568",
              "versionType": "git"
            },
            {
              "lessThan": "93940fc4cb81840dc0fa202de48cccb949a0261d",
              "status": "affected",
              "version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568",
              "versionType": "git"
            },
            {
              "lessThan": "46bc359fec0c6d87b70d7a008bcd9a5e30dd6f27",
              "status": "affected",
              "version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568",
              "versionType": "git"
            },
            {
              "lessThan": "726e2c5929de841fdcef4e2bf995680688ae1b87",
              "status": "affected",
              "version": "e314dbdc1c0dc6a548ecf0afce28ecfd538ff568",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/veth.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.24"
            },
            {
              "lessThan": "2.6.24",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.311",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.276",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.239",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.190",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.311",
                  "versionStartIncluding": "2.6.24",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.276",
                  "versionStartIncluding": "2.6.24",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.239",
                  "versionStartIncluding": "2.6.24",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.190",
                  "versionStartIncluding": "2.6.24",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.112",
                  "versionStartIncluding": "2.6.24",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.35",
                  "versionStartIncluding": "2.6.24",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.4",
                  "versionStartIncluding": "2.6.24",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18",
                  "versionStartIncluding": "2.6.24",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nveth: Ensure eth header is in skb\u0027s linear part\n\nAfter feeding a decapsulated packet to a veth device with act_mirred,\nskb_headlen() may be 0. But veth_xmit() calls __dev_forward_skb(),\nwhich expects at least ETH_HLEN byte of linear data (as\n__dev_forward_skb2() calls eth_type_trans(), which pulls ETH_HLEN bytes\nunconditionally).\n\nUse pskb_may_pull() to ensure veth_xmit() respects this constraint.\n\nkernel BUG at include/linux/skbuff.h:2328!\nRIP: 0010:eth_type_trans+0xcf/0x140\nCall Trace:\n \u003cIRQ\u003e\n __dev_forward_skb2+0xe3/0x160\n veth_xmit+0x6e/0x250 [veth]\n dev_hard_start_xmit+0xc7/0x200\n __dev_queue_xmit+0x47f/0x520\n ? skb_ensure_writable+0x85/0xa0\n ? skb_mpls_pop+0x98/0x1c0\n tcf_mirred_act+0x442/0x47e [act_mirred]\n tcf_action_exec+0x86/0x140\n fl_classify+0x1d8/0x1e0 [cls_flower]\n ? dma_pte_clear_level+0x129/0x1a0\n ? dma_pte_clear_level+0x129/0x1a0\n ? prb_fill_curr_block+0x2f/0xc0\n ? skb_copy_bits+0x11a/0x220\n __tcf_classify+0x58/0x110\n tcf_classify_ingress+0x6b/0x140\n __netif_receive_skb_core.constprop.0+0x47d/0xfd0\n ? __iommu_dma_unmap_swiotlb+0x44/0x90\n __netif_receive_skb_one_core+0x3d/0xa0\n netif_receive_skb+0x116/0x170\n be_process_rx+0x22f/0x330 [be2net]\n be_poll+0x13c/0x370 [be2net]\n __napi_poll+0x2a/0x170\n net_rx_action+0x22f/0x2f0\n __do_softirq+0xca/0x2a8\n __irq_exit_rcu+0xc1/0xe0\n common_interrupt+0x83/0xa0"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T18:52:22.189Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3de2a02b60a4ef0ab76263216f08c7d095fc7c42"
        },
        {
          "url": "https://git.kernel.org/stable/c/d417a859221f127e8edf09c14b76ab50f825e171"
        },
        {
          "url": "https://git.kernel.org/stable/c/1ef0088e43af1de4e3b365218c4d3179d9a37eec"
        },
        {
          "url": "https://git.kernel.org/stable/c/2fd90b86dff413fbf8128780c04ea9c6849c16e2"
        },
        {
          "url": "https://git.kernel.org/stable/c/d67c900f1947d64ba8a64f693504bcaab8d9000c"
        },
        {
          "url": "https://git.kernel.org/stable/c/93940fc4cb81840dc0fa202de48cccb949a0261d"
        },
        {
          "url": "https://git.kernel.org/stable/c/46bc359fec0c6d87b70d7a008bcd9a5e30dd6f27"
        },
        {
          "url": "https://git.kernel.org/stable/c/726e2c5929de841fdcef4e2bf995680688ae1b87"
        }
      ],
      "title": "veth: Ensure eth header is in skb\u0027s linear part",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49066",
    "datePublished": "2025-02-26T01:54:34.395Z",
    "dateReserved": "2025-02-26T01:49:39.244Z",
    "dateUpdated": "2026-05-11T18:52:22.189Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.

Vulnerability timeline

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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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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