github - ghsa-q542-6qvr-358j

GHSA-Q542-6QVR-358J

Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-17 21:31

Details

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

apparmor: Fix memleak in aa_simple_write_to_buffer()

When copy_from_user failed, the memory is freed by kvfree. however the management struct and data blob are allocated independently, so only kvfree(data) cause a memleak issue here. Use aa_put_loaddata(data) to fix this issue.

Severity ?

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50074"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T11:15:36Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: Fix memleak in aa_simple_write_to_buffer()\n\nWhen copy_from_user failed, the memory is freed by kvfree. however the\nmanagement struct and data blob are allocated independently, so only\nkvfree(data) cause a memleak issue here. Use aa_put_loaddata(data) to\nfix this issue.",
  "id": "GHSA-q542-6qvr-358j",
  "modified": "2025-11-17T21:31:17Z",
  "published": "2025-06-18T12:30:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50074"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/417ea9fe972d2654a268ad66e89c8fcae67017c3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6500eb3a48ac221051b1791818a1ac74744ef617"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6583edbf459de2e06b9759f264c0ae27e452b97a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7db182a2ebeefded86fea542fcc5d6a68bb77f58"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8aab4295582eb397a125d2788b829fa62b88dbf7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bf7ebebce2c25071c719fd8a2f1307e0c243c2d7"
    }
  ],
  "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-2022-50074 (GCVE-0-2022-50074)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:02 – Updated: 2025-06-18 11:02

Summary

In the Linux kernel, the following vulnerability has been resolved: apparmor: Fix memleak in aa_simple_write_to_buffer() When copy_from_user failed, the memory is freed by kvfree. however the management struct and data blob are allocated independently, so only kvfree(data) cause a memleak issue here. Use aa_put_loaddata(data) to fix this issue.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/6500eb3a48ac22105…
	https://git.kernel.org/stable/c/7db182a2ebeefded8…
	https://git.kernel.org/stable/c/8aab4295582eb397a…
	https://git.kernel.org/stable/c/bf7ebebce2c25071c…
	https://git.kernel.org/stable/c/6583edbf459de2e06…
	https://git.kernel.org/stable/c/417ea9fe972d2654a…

Impacted products

Vendor

Product

Version

Linux

Affected: a6a52579e52b55448326db88bd9a5740e7c1a037 , < 6500eb3a48ac221051b1791818a1ac74744ef617 (git)
Affected: a6a52579e52b55448326db88bd9a5740e7c1a037 , < 7db182a2ebeefded86fea542fcc5d6a68bb77f58 (git)
Affected: a6a52579e52b55448326db88bd9a5740e7c1a037 , < 8aab4295582eb397a125d2788b829fa62b88dbf7 (git)
Affected: a6a52579e52b55448326db88bd9a5740e7c1a037 , < bf7ebebce2c25071c719fd8a2f1307e0c243c2d7 (git)
Affected: a6a52579e52b55448326db88bd9a5740e7c1a037 , < 6583edbf459de2e06b9759f264c0ae27e452b97a (git)
Affected: a6a52579e52b55448326db88bd9a5740e7c1a037 , < 417ea9fe972d2654a268ad66e89c8fcae67017c3 (git)

Linux

Affected: 4.17
Unaffected: 0 , < 4.17 (semver)
Unaffected: 4.19.256 , ≤ 4.19.* (semver)
Unaffected: 5.4.211 , ≤ 5.4.* (semver)
Unaffected: 5.10.138 , ≤ 5.10.* (semver)
Unaffected: 5.15.63 , ≤ 5.15.* (semver)
Unaffected: 5.19.4 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)

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{
  "containers": {
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          "defaultStatus": "unaffected",
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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-Q542-6QVR-358J

CVE-2022-50074 (GCVE-0-2022-50074)

Tags

Sightings

Nomenclature