Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix UAF in __close_file_table_ids A use-after-free is possible if one thread destroys the file via __ksmbd_close_fd while another thread holds a reference to it. The existing checks on fp->refcount are not sufficient to prevent this. The fix takes ft->lock around the section which removes the file from the file table. This prevents two threads acquiring the same file pointer via __close_file_table_ids, as well as the other functions which retrieve a file from the IDR and which already use this same lock.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.15, < 6.6.91 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/16727e442568a46d9cca69fe2595896de86e120dPatch
- https://git.kernel.org/stable/c/36991c1ccde2d5a521577c448ffe07fcccfe104dPatch
- https://git.kernel.org/stable/c/9e9841e232b51171ddf3bc4ee517d5d28dc8cad6Patch
- https://git.kernel.org/stable/c/fec1f9e9a650e8e7011330a085c77e7bf2a08ea9Patch
FAQ
What is CVE-2025-37952?
CVE-2025-37952 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix UAF in __close_file_table_ids A use-after-free is possible if one thread destroys the file via __ksmbd_close_fd while a...
How severe is CVE-2025-37952?
CVE-2025-37952 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-37952?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.