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Vulnerabilities CVE-2023-54280

CVE-2023-54280

Critical
Open
TLP:CLEAR

cifs: fix potential race when tree connecting ipc

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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.

Details

CVSS Score
9.8
EPSS Score
0.45%

37.2th percentile

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Confidence
90%
Published
Dec 30, 2025
Last Modified
Aug 4, 2026
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