github - ghsa-f4xq-gq7q-8jfg

GHSA-F4XQ-GQ7Q-8JFG

Vulnerability from github – Published: 2025-12-30 15:30 – Updated: 2025-12-30 15:30

Details

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

dm clone: Fix UAF in clone_dtr()

Dm_clone also has the same UAF problem when dm_resume() and dm_destroy() are concurrent.

Therefore, cancelling timer again in clone_dtr().

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50843"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-30T13:15:58Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm clone: Fix UAF in clone_dtr()\n\nDm_clone also has the same UAF problem when dm_resume()\nand dm_destroy() are concurrent.\n\nTherefore, cancelling timer again in clone_dtr().",
  "id": "GHSA-f4xq-gq7q-8jfg",
  "modified": "2025-12-30T15:30:27Z",
  "published": "2025-12-30T15:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50843"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/342cfd8426dff4228e6c714bcb9fc8295a2748dd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/520b56cfd9faee7683f081c3a38f11a81b13a68e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/856edd0e92f3fe89606b704c86a93daedddfe6ec"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9e113cd4f61f3b0000843b2d0a90ce8b40a1fcff"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b1ddb666073bb5f36390aaabaa1a4d48d78c52ed"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e4b5957c6f749a501c464f92792f1c8e26b61a94"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2022-50843 (GCVE-0-2022-50843)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:11 – Updated: 2025-12-30 12:11

Title

dm clone: Fix UAF in clone_dtr()

Summary

In the Linux kernel, the following vulnerability has been resolved: dm clone: Fix UAF in clone_dtr() Dm_clone also has the same UAF problem when dm_resume() and dm_destroy() are concurrent. Therefore, cancelling timer again in clone_dtr().

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/520b56cfd9faee768…
	https://git.kernel.org/stable/c/342cfd8426dff4228…
	https://git.kernel.org/stable/c/856edd0e92f3fe896…
	https://git.kernel.org/stable/c/b1ddb666073bb5f36…
	https://git.kernel.org/stable/c/9e113cd4f61f3b000…
	https://git.kernel.org/stable/c/e4b5957c6f749a501…

Impacted products

Vendor

Product

Version

Linux

Affected: 7431b7835f554f8608b415a02cf3c3f086309e02 , < 520b56cfd9faee7683f081c3a38f11a81b13a68e (git)
Affected: 7431b7835f554f8608b415a02cf3c3f086309e02 , < 342cfd8426dff4228e6c714bcb9fc8295a2748dd (git)
Affected: 7431b7835f554f8608b415a02cf3c3f086309e02 , < 856edd0e92f3fe89606b704c86a93daedddfe6ec (git)
Affected: 7431b7835f554f8608b415a02cf3c3f086309e02 , < b1ddb666073bb5f36390aaabaa1a4d48d78c52ed (git)
Affected: 7431b7835f554f8608b415a02cf3c3f086309e02 , < 9e113cd4f61f3b0000843b2d0a90ce8b40a1fcff (git)
Affected: 7431b7835f554f8608b415a02cf3c3f086309e02 , < e4b5957c6f749a501c464f92792f1c8e26b61a94 (git)

Linux

Affected: 5.4
Unaffected: 0 , < 5.4 (semver)
Unaffected: 5.4.229 , ≤ 5.4.* (semver)
Unaffected: 5.10.163 , ≤ 5.10.* (semver)
Unaffected: 5.15.87 , ≤ 5.15.* (semver)
Unaffected: 6.0.18 , ≤ 6.0.* (semver)
Unaffected: 6.1.4 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/dm-clone-target.c"
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          "vendor": "Linux",
          "versions": [
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          "vendor": "Linux",
          "versions": [
            {
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              "version": "5.4"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.229",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.163",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.87",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.18",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm clone: Fix UAF in clone_dtr()\n\nDm_clone also has the same UAF problem when dm_resume()\nand dm_destroy() are concurrent.\n\nTherefore, cancelling timer again in clone_dtr()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-30T12:11:01.130Z",
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        "shortName": "Linux"
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    "datePublished": "2025-12-30T12:11:01.130Z",
    "dateReserved": "2025-12-30T12:06:07.133Z",
    "dateUpdated": "2025-12-30T12:11:01.130Z",
    "state": "PUBLISHED"
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}

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-F4XQ-GQ7Q-8JFG

CVE-2022-50843 (GCVE-0-2022-50843)

Tags

Sightings

Nomenclature