github - ghsa-g69g-p5jr-h7qf

GHSA-G69G-P5JR-H7QF

Vulnerability from github – Published: 2025-10-24 18:30 – Updated: 2025-10-24 18:30

Details

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

net: tun: unlink NAPI from device on destruction

Syzbot found a race between tun file and device destruction. NAPIs live in struct tun_file which can get destroyed before the netdev so we have to del them explicitly. The current code is missing deleting the NAPI if the queue was detached first.

Severity ?

5.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2022-49672"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:42Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: tun: unlink NAPI from device on destruction\n\nSyzbot found a race between tun file and device destruction.\nNAPIs live in struct tun_file which can get destroyed before\nthe netdev so we have to del them explicitly. The current\ncode is missing deleting the NAPI if the queue was detached\nfirst.",
  "id": "GHSA-g69g-p5jr-h7qf",
  "modified": "2025-10-24T18:30:56Z",
  "published": "2025-10-24T18:30:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49672"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3b9bc84d311104906d2b4995a9a02d7b7ddab2db"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8145f77d38de4f88b8a69e1463f5c09ba189d77c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/82e729aee59acefe135fceffadcbc5b86dd4f1b9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8661d4b8faa2f7ee7a559969c0a7c57f077b1728"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a8cf919022373c97a84fe596bbea544f909c485d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bec1be0a745ab420718217e3e0d9542a75108989"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-49672 (GCVE-0-2022-49672)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:24 – Updated: 2025-05-04 08:43

Summary

In the Linux kernel, the following vulnerability has been resolved: net: tun: unlink NAPI from device on destruction Syzbot found a race between tun file and device destruction. NAPIs live in struct tun_file which can get destroyed before the netdev so we have to del them explicitly. The current code is missing deleting the NAPI if the queue was detached first.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/82e729aee59acefe1…
	https://git.kernel.org/stable/c/a8cf919022373c97a…
	https://git.kernel.org/stable/c/bec1be0a745ab4207…
	https://git.kernel.org/stable/c/8145f77d38de4f88b…
	https://git.kernel.org/stable/c/8661d4b8faa2f7ee7…
	https://git.kernel.org/stable/c/3b9bc84d311104906…

Impacted products

Vendor

Product

Version

Linux

Affected: 943170998b200190f99d3fe7e771437e2c51f319 , < 82e729aee59acefe135fceffadcbc5b86dd4f1b9 (git)
Affected: 943170998b200190f99d3fe7e771437e2c51f319 , < a8cf919022373c97a84fe596bbea544f909c485d (git)
Affected: 943170998b200190f99d3fe7e771437e2c51f319 , < bec1be0a745ab420718217e3e0d9542a75108989 (git)
Affected: 943170998b200190f99d3fe7e771437e2c51f319 , < 8145f77d38de4f88b8a69e1463f5c09ba189d77c (git)
Affected: 943170998b200190f99d3fe7e771437e2c51f319 , < 8661d4b8faa2f7ee7a559969c0a7c57f077b1728 (git)
Affected: 943170998b200190f99d3fe7e771437e2c51f319 , < 3b9bc84d311104906d2b4995a9a02d7b7ddab2db (git)

Linux

Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 4.19.251 , ≤ 4.19.* (semver)
Unaffected: 5.4.204 , ≤ 5.4.* (semver)
Unaffected: 5.10.129 , ≤ 5.10.* (semver)
Unaffected: 5.15.53 , ≤ 5.15.* (semver)
Unaffected: 5.18.10 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/tun.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "82e729aee59acefe135fceffadcbc5b86dd4f1b9",
              "status": "affected",
              "version": "943170998b200190f99d3fe7e771437e2c51f319",
              "versionType": "git"
            },
            {
              "lessThan": "a8cf919022373c97a84fe596bbea544f909c485d",
              "status": "affected",
              "version": "943170998b200190f99d3fe7e771437e2c51f319",
              "versionType": "git"
            },
            {
              "lessThan": "bec1be0a745ab420718217e3e0d9542a75108989",
              "status": "affected",
              "version": "943170998b200190f99d3fe7e771437e2c51f319",
              "versionType": "git"
            },
            {
              "lessThan": "8145f77d38de4f88b8a69e1463f5c09ba189d77c",
              "status": "affected",
              "version": "943170998b200190f99d3fe7e771437e2c51f319",
              "versionType": "git"
            },
            {
              "lessThan": "8661d4b8faa2f7ee7a559969c0a7c57f077b1728",
              "status": "affected",
              "version": "943170998b200190f99d3fe7e771437e2c51f319",
              "versionType": "git"
            },
            {
              "lessThan": "3b9bc84d311104906d2b4995a9a02d7b7ddab2db",
              "status": "affected",
              "version": "943170998b200190f99d3fe7e771437e2c51f319",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/tun.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "lessThan": "4.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.251",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.204",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.129",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.251",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.204",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.129",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.53",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18.10",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: tun: unlink NAPI from device on destruction\n\nSyzbot found a race between tun file and device destruction.\nNAPIs live in struct tun_file which can get destroyed before\nthe netdev so we have to del them explicitly. The current\ncode is missing deleting the NAPI if the queue was detached\nfirst."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:43:01.207Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/82e729aee59acefe135fceffadcbc5b86dd4f1b9"
        },
        {
          "url": "https://git.kernel.org/stable/c/a8cf919022373c97a84fe596bbea544f909c485d"
        },
        {
          "url": "https://git.kernel.org/stable/c/bec1be0a745ab420718217e3e0d9542a75108989"
        },
        {
          "url": "https://git.kernel.org/stable/c/8145f77d38de4f88b8a69e1463f5c09ba189d77c"
        },
        {
          "url": "https://git.kernel.org/stable/c/8661d4b8faa2f7ee7a559969c0a7c57f077b1728"
        },
        {
          "url": "https://git.kernel.org/stable/c/3b9bc84d311104906d2b4995a9a02d7b7ddab2db"
        }
      ],
      "title": "net: tun: unlink NAPI from device on destruction",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49672",
    "datePublished": "2025-02-26T02:24:05.284Z",
    "dateReserved": "2025-02-26T02:21:30.437Z",
    "dateUpdated": "2025-05-04T08:43:01.207Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-G69G-P5JR-H7QF

CVE-2022-49672 (GCVE-0-2022-49672)

Tags

Sightings

Nomenclature