Resource Leak in Linux Kernel Caused by CIFS Client Refcount Issues
CVE-2025-40103
What is CVE-2025-40103?
The Linux kernel has been identified with a vulnerability related to CIFS client refcount inconsistencies. Specifically, the issue arises from three missing updates to the reference count of 'cifs_sb_tlink', which can result in resource leaks. Proper management of the reference count is crucial to prevent potential system resource exhaustion. Developers are encouraged to ensure that the function 'cifs_put_tlink()' is called accurately after utilizing 'cifs_sb_tlink()' to mitigate the risk of these leaks.
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Affected Version(s)
Linux 8ceb984379462f94bdebef3288d569c6e1f912ea < 790282abe9d805f08618c1c24ea2529e7259b692
Linux 8ceb984379462f94bdebef3288d569c6e1f912ea
Linux 8ceb984379462f94bdebef3288d569c6e1f912ea