smb: client: add NULL check in automount_fullpath

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AZL-70424 CVE-2025-38208 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: smb: client: add NULL check in automountfullpath page is checked for null in buildpathfromdentryoptionalprefix when tcon-originfullpath is not set. However, the check is missing when it is set. Add a check to prevent a potential...

PT-2025-27983

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A potential NULL pointer dereference issue has been identified in the Linux kernel. The issue is related to the smb client and the automount fullpath function. Specifically, a NULL che...