Bug 2426088 (CVE-2023-54280)

Summary: CVE-2023-54280 kernel: cifs: fix potential race when tree connecting ipc
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2025-12-30 13:08:06 UTC 
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.
Comment 1 Alexander B 2025-12-31 10:09:45 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123026-CVE-2023-54280-26ee@gregkh/T