CVE-2022-49811 (GCVE-0-2022-49811)

Vulnerability from cvelistv5 – Published: 2025-05-01 14:09 – Updated: 2026-05-11 19:07
VLAI
Title
drbd: use after free in drbd_create_device()
Summary
In the Linux kernel, the following vulnerability has been resolved: drbd: use after free in drbd_create_device() The drbd_destroy_connection() frees the "connection" so use the _safe() iterator to prevent a use after free.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: b6f85ef9538b2111a8ba0bbfae9aaebabfc94961 , < fc1897f16ebcfd22364f2afcc27f53a740f3bc7a (git)
Affected: b6f85ef9538b2111a8ba0bbfae9aaebabfc94961 , < bf47ca1b35fc1f55091ffaff5fbe41ea0c6f59a1 (git)
Affected: b6f85ef9538b2111a8ba0bbfae9aaebabfc94961 , < 813a8dd9c45fd46f5cbbfbedf0791afa7740ccf5 (git)
Affected: b6f85ef9538b2111a8ba0bbfae9aaebabfc94961 , < 9ed51414aef6e59e832e2960f10766dce2d5b1a1 (git)
Affected: b6f85ef9538b2111a8ba0bbfae9aaebabfc94961 , < 7d93417d596402ddd46bd76c721f205d09d0d025 (git)
Affected: b6f85ef9538b2111a8ba0bbfae9aaebabfc94961 , < c2a00b149836d60c222930bbea6b2139caf34d4f (git)
Affected: b6f85ef9538b2111a8ba0bbfae9aaebabfc94961 , < a7a1598189228b5007369a9622ccdf587be0730f (git)
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Linux Linux Affected: 3.15
Unaffected: 0 , < 3.15 (semver)
Unaffected: 4.14.300 , ≤ 4.14.* (semver)
Unaffected: 4.19.267 , ≤ 4.19.* (semver)
Unaffected: 5.4.225 , ≤ 5.4.* (semver)
Unaffected: 5.10.156 , ≤ 5.10.* (semver)
Unaffected: 5.15.80 , ≤ 5.15.* (semver)
Unaffected: 6.0.10 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
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      "cve": "CVE-2022-49811",
      "id": "CVE-2022-49811",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_affected": "108",
      "product_status:known_not_affected": "166",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drbd: use after free in drbd_create_device()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49811.json",
      "version": "3"
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  }
}



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  • 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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.