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CVE-2022-49020 (GCVE-0-2022-49020)

Vulnerability from cvelistv5 – Published: 2024-10-21 20:06 – Updated: 2026-05-11 18:51
VLAI
Title
net/9p: Fix a potential socket leak in p9_socket_open
Summary
In the Linux kernel, the following vulnerability has been resolved: net/9p: Fix a potential socket leak in p9_socket_open Both p9_fd_create_tcp() and p9_fd_create_unix() will call p9_socket_open(). If the creation of p9_trans_fd fails, p9_fd_create_tcp() and p9_fd_create_unix() will return an error directly instead of releasing the cscoket, which will result in a socket leak. This patch adds sock_release() to fix the leak issue.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-22 13:12 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 6b18662e239a032f908b7f6e164bdf7e2e0a32c9 , < 0396227f4daf4792a6a8aaa3b7771dc25c4cd443 (git)
Affected: 6b18662e239a032f908b7f6e164bdf7e2e0a32c9 , < ded893965b895b2dccd3d1436d8d3daffa23ea64 (git)
Affected: 6b18662e239a032f908b7f6e164bdf7e2e0a32c9 , < 8b14bd0b500aec1458b51cb621c8e5fab3304260 (git)
Affected: 6b18662e239a032f908b7f6e164bdf7e2e0a32c9 , < 2d24d91b9f44620824fc37b766f7cae00ca32748 (git)
Affected: 6b18662e239a032f908b7f6e164bdf7e2e0a32c9 , < e01c1542379fb395e7da53706df598f38905dfbf (git)
Affected: 6b18662e239a032f908b7f6e164bdf7e2e0a32c9 , < 8782b32ef867de7981bbe9e86ecb90e92e8780bd (git)
Affected: 6b18662e239a032f908b7f6e164bdf7e2e0a32c9 , < aa08323fe18cb7cf95317ffa2d54ca1de8e74ebd (git)
Affected: 6b18662e239a032f908b7f6e164bdf7e2e0a32c9 , < dcc14cfd7debe11b825cb077e75d91d2575b4cb8 (git)
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Linux Linux Affected: 2.6.33
Unaffected: 0 , < 2.6.33 (semver)
Unaffected: 4.9.335 , ≤ 4.9.* (semver)
Unaffected: 4.14.301 , ≤ 4.14.* (semver)
Unaffected: 4.19.268 , ≤ 4.19.* (semver)
Unaffected: 5.4.226 , ≤ 5.4.* (semver)
Unaffected: 5.10.158 , ≤ 5.10.* (semver)
Unaffected: 5.15.82 , ≤ 5.15.* (semver)
Unaffected: 6.0.12 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T14:27:15+00:00",
      "cve": "CVE-2022-49020",
      "id": "CVE-2022-49020",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_affected": "14",
      "product_status:known_not_affected": "184",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net/9p: Fix a potential socket leak in p9_socket_open",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49020.json",
      "version": "3"
    },
    "vulnrichment": {
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If the creation of p9_trans_fd fails,\\np9_fd_create_tcp() and p9_fd_create_unix() will return an\\nerror directly instead of releasing the cscoket, which will\\nresult in a socket leak.\\n\\nThis patch adds sock_release() to fix the leak issue.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.9.335\", \"versionStartIncluding\": \"2.6.33\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.301\", \"versionStartIncluding\": \"2.6.33\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.268\", \"versionStartIncluding\": \"2.6.33\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.226\", \"versionStartIncluding\": \"2.6.33\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.158\", \"versionStartIncluding\": \"2.6.33\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.82\", \"versionStartIncluding\": \"2.6.33\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0.12\", \"versionStartIncluding\": \"2.6.33\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1\", \"versionStartIncluding\": \"2.6.33\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T18:51:39.452Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49020\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T18:51:39.452Z\", \"dateReserved\": \"2024-08-22T01:27:53.649Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T20:06:27.976Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.


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.