Riskcovery

CVE-2023-54280

cifs: fix potential race when tree connecting ipc

State
Published
Severity
9.8 Critical
Published
Dec 30, 2025
Updated
Oct 15, 2026
Reserved
Dec 30, 2025

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
3.19.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e to before 536ec71ba060a02fabe8e22cecb82fe7b3a8708bAffected
  • c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e to before 553476df55a111e6a66ad9155256aec0ec1b7ad0Affected
  • c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e to before ee20d7c6100752eaf2409d783f4f1449c29ea33dAffected
  • 81d583baa5f1abd73c755ce1992929debd20b687Affected
  • 5.15.81 to before 5.16Affected
LinuxLinux
  • 5.16Affected
  • before 5.16Not affected
  • 6.2.15 through 6.2.*Not affected
  • 6.3.2 through 6.3.*Not affected
  • 6.4 and laterNot affected

References

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