Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix refcount leak when invalid session is found on session lookup When a session is found but its state is not SMB2_SESSION_VALID, It indicates that no valid session was found, but it is missing to decrement the reference count acquired by the session lookup, which results in a reference count leak. This patch fixes the issue by explicitly calling ksmbd_user_session_put to release the reference to the session.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.15.176, < 5.16 |
References
- https://git.kernel.org/stable/c/02e06785e85b4bd86ef3d23b7c8d87acc76773d5Patch
- https://git.kernel.org/stable/c/0fb87b28cafae71e9c8248432cc3a6a1fd759efcPatch
- https://git.kernel.org/stable/c/11fe566b442e3bc2774191740fd377739a87a1c0
- https://git.kernel.org/stable/c/8cabcb4dd3dc85dd83a37d26efcc59a66a4074d7Patch
- https://git.kernel.org/stable/c/cafb57f7bdd57abba87725eb4e82bbdca4959644Patch
- https://git.kernel.org/stable/c/e54fb2a4772545701766cba08aab20de5eace8cdPatch
FAQ
What is CVE-2025-71150?
CVE-2025-71150 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix refcount leak when invalid session is found on session lookup When a session is found but its state is not SMB2_SESSION...
How severe is CVE-2025-71150?
CVE-2025-71150 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-71150?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.