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Linux kernel: SMB server has a file count leak
CVE-2025-71204
Summary
The Linux kernel's SMB server may leak file counts, potentially causing issues with file access and management. This issue has been fixed, so you should update your kernel to the latest version to prevent any potential problems. No action is required if you're already running the latest version.
Original title
In the Linux kernel, the following vulnerability has been resolved:
smb/server: fix refcount leak in parse_durable_handle_context()
When the command is a replay operation and -ENOEXEC is returned...
Original description
In the Linux kernel, the following vulnerability has been resolved:
smb/server: fix refcount leak in parse_durable_handle_context()
When the command is a replay operation and -ENOEXEC is returned,
the refcount of ksmbd_file must be released.
smb/server: fix refcount leak in parse_durable_handle_context()
When the command is a replay operation and -ENOEXEC is returned,
the refcount of ksmbd_file must be released.
Published: 14 Feb 2026 · Updated: 10 Mar 2026 · First seen: 6 Mar 2026