Vulnerability-Lookup

FKIE_CVE-2026-98351

Vulnerability from fkie_nvd - Published: 2026-10-06 09:18 - Updated: 2026-10-06 09:18

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: virt_wifi: free skb when disconnected When the simulated link is disconnected, virt_wifi_start_xmit() returns NET_XMIT_DROP without freeing the skb. dev_hard_start_xmit() treats this return value as consumed, so every packet sent while disconnected leaks its skb. Free the skb before returning the drop status.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/36727a702cf8e3399e3da60d0856378f6afcfb34
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/38d3a5df85345f158f78b478b265ca906224454e
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/46371442847a725cc0df3697fea2eba1dd54b82b
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4f266738af45675faa0e8afee08c6e780afa8b06
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/56469996c10a0240653fc00576b4d33bdfb4cc51
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d177eca79e1106834bc423d3969a4a2e3987996a
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ee053ea35c759135460f03d1c574f4ed08de844a
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f9edf7cf63b96d2b776fca8d258d3c5256e40c8e

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/virtual/virt_wifi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "38d3a5df85345f158f78b478b265ca906224454e",
              "status": "affected",
              "version": "c7cdba31ed8b87526db978976392802d3f93110c",
              "versionType": "git"
            },
            {
              "lessThan": "ee053ea35c759135460f03d1c574f4ed08de844a",
              "status": "affected",
              "version": "c7cdba31ed8b87526db978976392802d3f93110c",
              "versionType": "git"
            },
            {
              "lessThan": "d177eca79e1106834bc423d3969a4a2e3987996a",
              "status": "affected",
              "version": "c7cdba31ed8b87526db978976392802d3f93110c",
              "versionType": "git"
            },
            {
              "lessThan": "36727a702cf8e3399e3da60d0856378f6afcfb34",
              "status": "affected",
              "version": "c7cdba31ed8b87526db978976392802d3f93110c",
              "versionType": "git"
            },
            {
              "lessThan": "56469996c10a0240653fc00576b4d33bdfb4cc51",
              "status": "affected",
              "version": "c7cdba31ed8b87526db978976392802d3f93110c",
              "versionType": "git"
            },
            {
              "lessThan": "4f266738af45675faa0e8afee08c6e780afa8b06",
              "status": "affected",
              "version": "c7cdba31ed8b87526db978976392802d3f93110c",
              "versionType": "git"
            },
            {
              "lessThan": "46371442847a725cc0df3697fea2eba1dd54b82b",
              "status": "affected",
              "version": "c7cdba31ed8b87526db978976392802d3f93110c",
              "versionType": "git"
            },
            {
              "lessThan": "f9edf7cf63b96d2b776fca8d258d3c5256e40c8e",
              "status": "affected",
              "version": "c7cdba31ed8b87526db978976392802d3f93110c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/virtual/virt_wifi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.0"
            },
            {
              "lessThan": "5.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.271",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc4",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: virt_wifi: free skb when disconnected\n\nWhen the simulated link is disconnected, virt_wifi_start_xmit() returns\nNET_XMIT_DROP without freeing the skb. dev_hard_start_xmit() treats this\nreturn value as consumed, so every packet sent while disconnected leaks its\nskb.\n\nFree the skb before returning the drop status."
    }
  ],
  "id": "CVE-2026-98351",
  "lastModified": "2026-10-06T09:18:28.437",
  "metrics": {},
  "published": "2026-10-06T09:18:28.437",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/36727a702cf8e3399e3da60d0856378f6afcfb34"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/38d3a5df85345f158f78b478b265ca906224454e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/46371442847a725cc0df3697fea2eba1dd54b82b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4f266738af45675faa0e8afee08c6e780afa8b06"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/56469996c10a0240653fc00576b4d33bdfb4cc51"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d177eca79e1106834bc423d3969a4a2e3987996a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ee053ea35c759135460f03d1c574f4ed08de844a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f9edf7cf63b96d2b776fca8d258d3c5256e40c8e"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-98351 (GCVE-0-2026-98351)

Vulnerability from cvelistv5 – Published: 2026-10-06 08:46 – Updated: 2026-10-06 08:46

Title

wifi: virt_wifi: free skb when disconnected

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root Scorecard

References

8 references

URL	Tags
https://git.kernel.org/stable/c/38d3a5df85345f158…
https://git.kernel.org/stable/c/ee053ea35c7591354…
https://git.kernel.org/stable/c/d177eca79e1106834…
https://git.kernel.org/stable/c/36727a702cf8e3399…
https://git.kernel.org/stable/c/56469996c10a02406…
https://git.kernel.org/stable/c/4f266738af45675fa…
https://git.kernel.org/stable/c/46371442847a725cc…
https://git.kernel.org/stable/c/f9edf7cf63b96d2b7…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: c7cdba31ed8b87526db978976392802d3f93110c , < 38d3a5df85345f158f78b478b265ca906224454e (git) Affected: c7cdba31ed8b87526db978976392802d3f93110c , < ee053ea35c759135460f03d1c574f4ed08de844a (git) Affected: c7cdba31ed8b87526db978976392802d3f93110c , < d177eca79e1106834bc423d3969a4a2e3987996a (git) Affected: c7cdba31ed8b87526db978976392802d3f93110c , < 36727a702cf8e3399e3da60d0856378f6afcfb34 (git) Affected: c7cdba31ed8b87526db978976392802d3f93110c , < 56469996c10a0240653fc00576b4d33bdfb4cc51 (git) Affected: c7cdba31ed8b87526db978976392802d3f93110c , < 4f266738af45675faa0e8afee08c6e780afa8b06 (git) Affected: c7cdba31ed8b87526db978976392802d3f93110c , < 46371442847a725cc0df3697fea2eba1dd54b82b (git) Affected: c7cdba31ed8b87526db978976392802d3f93110c , < f9edf7cf63b96d2b776fca8d258d3c5256e40c8e (git)
Linux	Linux	Affected: 5.0 Unaffected: 0 , < 5.0 (semver) Unaffected: 5.10.271 , ≤ 5.10.* (semver) Unaffected: 5.15.222 , ≤ 5.15.* (semver) Unaffected: 6.1.189 , ≤ 6.1.* (semver) Unaffected: 6.6.158 , ≤ 6.6.* (semver) Unaffected: 6.12.112 , ≤ 6.12.* (semver) Unaffected: 6.18.54 , ≤ 6.18.* (semver) Unaffected: 7.2.8 , ≤ 7.2.* (semver) Unaffected: 7.3-rc4 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/virtual/virt_wifi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "38d3a5df85345f158f78b478b265ca906224454e",
              "status": "affected",
              "version": "c7cdba31ed8b87526db978976392802d3f93110c",
              "versionType": "git"
            },
            {
              "lessThan": "ee053ea35c759135460f03d1c574f4ed08de844a",
              "status": "affected",
              "version": "c7cdba31ed8b87526db978976392802d3f93110c",
              "versionType": "git"
            },
            {
              "lessThan": "d177eca79e1106834bc423d3969a4a2e3987996a",
              "status": "affected",
              "version": "c7cdba31ed8b87526db978976392802d3f93110c",
              "versionType": "git"
            },
            {
              "lessThan": "36727a702cf8e3399e3da60d0856378f6afcfb34",
              "status": "affected",
              "version": "c7cdba31ed8b87526db978976392802d3f93110c",
              "versionType": "git"
            },
            {
              "lessThan": "56469996c10a0240653fc00576b4d33bdfb4cc51",
              "status": "affected",
              "version": "c7cdba31ed8b87526db978976392802d3f93110c",
              "versionType": "git"
            },
            {
              "lessThan": "4f266738af45675faa0e8afee08c6e780afa8b06",
              "status": "affected",
              "version": "c7cdba31ed8b87526db978976392802d3f93110c",
              "versionType": "git"
            },
            {
              "lessThan": "46371442847a725cc0df3697fea2eba1dd54b82b",
              "status": "affected",
              "version": "c7cdba31ed8b87526db978976392802d3f93110c",
              "versionType": "git"
            },
            {
              "lessThan": "f9edf7cf63b96d2b776fca8d258d3c5256e40c8e",
              "status": "affected",
              "version": "c7cdba31ed8b87526db978976392802d3f93110c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/virtual/virt_wifi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.0"
            },
            {
              "lessThan": "5.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.271",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc4",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.271",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.222",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.189",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.158",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.112",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.54",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.8",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc4",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: virt_wifi: free skb when disconnected\n\nWhen the simulated link is disconnected, virt_wifi_start_xmit() returns\nNET_XMIT_DROP without freeing the skb. dev_hard_start_xmit() treats this\nreturn value as consumed, so every packet sent while disconnected leaks its\nskb.\n\nFree the skb before returning the drop status."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-06T08:46:39.335Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/38d3a5df85345f158f78b478b265ca906224454e"
        },
        {
          "url": "https://git.kernel.org/stable/c/ee053ea35c759135460f03d1c574f4ed08de844a"
        },
        {
          "url": "https://git.kernel.org/stable/c/d177eca79e1106834bc423d3969a4a2e3987996a"
        },
        {
          "url": "https://git.kernel.org/stable/c/36727a702cf8e3399e3da60d0856378f6afcfb34"
        },
        {
          "url": "https://git.kernel.org/stable/c/56469996c10a0240653fc00576b4d33bdfb4cc51"
        },
        {
          "url": "https://git.kernel.org/stable/c/4f266738af45675faa0e8afee08c6e780afa8b06"
        },
        {
          "url": "https://git.kernel.org/stable/c/46371442847a725cc0df3697fea2eba1dd54b82b"
        },
        {
          "url": "https://git.kernel.org/stable/c/f9edf7cf63b96d2b776fca8d258d3c5256e40c8e"
        }
      ],
      "title": "wifi: virt_wifi: free skb when disconnected",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98351",
    "datePublished": "2026-10-06T08:46:39.335Z",
    "dateReserved": "2026-09-25T10:25:14.343Z",
    "dateUpdated": "2026-10-06T08:46:39.335Z",
    "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.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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FKIE_CVE-2026-98351

CVE-2026-98351 (GCVE-0-2026-98351)

Tags

Sightings

Nomenclature

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