CVE-2023-54280 (GCVE-0-2023-54280)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:23 – Updated: 2026-05-23 15:35
VLAI
Title
cifs: fix potential race when tree connecting ipc
Summary
In the Linux kernel, the following vulnerability has been resolved: cifs: fix potential race when tree connecting ipc Protect access of TCP_Server_Info::hostname when building the ipc tree name as it might get freed in cifsd thread and thus causing an use-after-free bug in __tree_connect_dfs_target(). Also, while at it, update status of IPC tcon on success and then avoid any extra tree connects.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e , < 536ec71ba060a02fabe8e22cecb82fe7b3a8708b (git)
Affected: c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e , < 553476df55a111e6a66ad9155256aec0ec1b7ad0 (git)
Affected: c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e , < ee20d7c6100752eaf2409d783f4f1449c29ea33d (git)
Affected: 81d583baa5f1abd73c755ce1992929debd20b687 (git)
Affected: 5.15.81 , < 5.16 (semver)
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Linux Linux Affected: 5.16
Unaffected: 0 , < 5.16 (semver)
Unaffected: 6.2.15 , ≤ 6.2.* (semver)
Unaffected: 6.3.2 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
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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

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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.



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