fkie_nvd - fkie_cve-2022-50843

FKIE_CVE-2022-50843

Vulnerability from fkie_nvd - Published: 2025-12-30 13:15 - Updated: 2025-12-30 13:15

Severity ?

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().

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/342cfd8426dff4228e6c714bcb9fc8295a2748dd
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/520b56cfd9faee7683f081c3a38f11a81b13a68e
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/856edd0e92f3fe89606b704c86a93daedddfe6ec
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9e113cd4f61f3b0000843b2d0a90ce8b40a1fcff
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b1ddb666073bb5f36390aaabaa1a4d48d78c52ed
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e4b5957c6f749a501c464f92792f1c8e26b61a94

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "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()."
    }
  ],
  "id": "CVE-2022-50843",
  "lastModified": "2025-12-30T13:15:58.903",
  "metrics": {},
  "published": "2025-12-30T13:15:58.903",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/342cfd8426dff4228e6c714bcb9fc8295a2748dd"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/520b56cfd9faee7683f081c3a38f11a81b13a68e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/856edd0e92f3fe89606b704c86a93daedddfe6ec"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9e113cd4f61f3b0000843b2d0a90ce8b40a1fcff"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b1ddb666073bb5f36390aaabaa1a4d48d78c52ed"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e4b5957c6f749a501c464f92792f1c8e26b61a94"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

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

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)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/dm-clone-target.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "520b56cfd9faee7683f081c3a38f11a81b13a68e",
              "status": "affected",
              "version": "7431b7835f554f8608b415a02cf3c3f086309e02",
              "versionType": "git"
            },
            {
              "lessThan": "342cfd8426dff4228e6c714bcb9fc8295a2748dd",
              "status": "affected",
              "version": "7431b7835f554f8608b415a02cf3c3f086309e02",
              "versionType": "git"
            },
            {
              "lessThan": "856edd0e92f3fe89606b704c86a93daedddfe6ec",
              "status": "affected",
              "version": "7431b7835f554f8608b415a02cf3c3f086309e02",
              "versionType": "git"
            },
            {
              "lessThan": "b1ddb666073bb5f36390aaabaa1a4d48d78c52ed",
              "status": "affected",
              "version": "7431b7835f554f8608b415a02cf3c3f086309e02",
              "versionType": "git"
            },
            {
              "lessThan": "9e113cd4f61f3b0000843b2d0a90ce8b40a1fcff",
              "status": "affected",
              "version": "7431b7835f554f8608b415a02cf3c3f086309e02",
              "versionType": "git"
            },
            {
              "lessThan": "e4b5957c6f749a501c464f92792f1c8e26b61a94",
              "status": "affected",
              "version": "7431b7835f554f8608b415a02cf3c3f086309e02",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/dm-clone-target.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.4"
            },
            {
              "lessThan": "5.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "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:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.229",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.163",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.87",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.18",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.4",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "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",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/520b56cfd9faee7683f081c3a38f11a81b13a68e"
        },
        {
          "url": "https://git.kernel.org/stable/c/342cfd8426dff4228e6c714bcb9fc8295a2748dd"
        },
        {
          "url": "https://git.kernel.org/stable/c/856edd0e92f3fe89606b704c86a93daedddfe6ec"
        },
        {
          "url": "https://git.kernel.org/stable/c/b1ddb666073bb5f36390aaabaa1a4d48d78c52ed"
        },
        {
          "url": "https://git.kernel.org/stable/c/9e113cd4f61f3b0000843b2d0a90ce8b40a1fcff"
        },
        {
          "url": "https://git.kernel.org/stable/c/e4b5957c6f749a501c464f92792f1c8e26b61a94"
        }
      ],
      "title": "dm clone: Fix UAF in clone_dtr()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50843",
    "datePublished": "2025-12-30T12:11:01.130Z",
    "dateReserved": "2025-12-30T12:06:07.133Z",
    "dateUpdated": "2025-12-30T12:11:01.130Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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

FKIE_CVE-2022-50843

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

Tags

Sightings

Nomenclature