Bug 2396160 (CVE-2023-53358)

Summary: CVE-2023-53358 kernel: ksmbd: fix racy issue under cocurrent smb2 tree disconnect
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: medium    
Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2025-09-17 15:04:54 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix racy issue under cocurrent smb2 tree disconnect

There is UAF issue under cocurrent smb2 tree disconnect.
This patch introduce TREE_CONN_EXPIRE flags for tcon to avoid cocurrent
access.
Comment 1 Jon Moroney 2025-09-17 17:11:47 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091721-CVE-2023-53358-29d3@gregkh/T