PT-2026-94504 · Linux · Linux Kernel
CVE-2026-90156
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Published
2026-09-17
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Updated
2026-09-24
None
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Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
An issue exists in the ksmbd module where
smb2 lock() adds a ksmbd lock to the rollback list before the asynchronous work is allocated and registered. If these operations fail, the rollback process attempts to dereference a NULL pointer by assuming smb lock->conn is initialized. Additionally, the deferred file lock remains linked to the VFS blocked-lock state during its release.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Related Identifiers
Affected Products
Linux Kernel