Bug 2376373 (CVE-2025-38208)

Summary: CVE-2025-38208 kernel: smb: client: add NULL check in automount_fullpath
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2025-07-04 14:02:18 UTC 
In the Linux kernel, the following vulnerability has been resolved:

smb: client: add NULL check in automount_fullpath

page is checked for null in __build_path_from_dentry_optional_prefix
when tcon->origin_fullpath is not set. However, the check is missing when
it is set.
Add a check to prevent a potential NULL pointer dereference.
Comment 1 Michal Findra 2025-07-06 09:55:10 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025070420-CVE-2025-38208-97e1@gregkh/T