CVE-2025-40103
Unknown
Unknown - Not Provided
BaseFortify
Publication date: 2025-10-30
Last updated on: 2026-04-18
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
smb: client: Fix refcount leak for cifs_sb_tlink
Fix three refcount inconsistency issues related to `cifs_sb_tlink`.
Comments for `cifs_sb_tlink` state that `cifs_put_tlink()` needs to be
called after successful calls to `cifs_sb_tlink()`. Three calls fail to
update refcount accordingly, leading to possible resource leaks.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | * |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a refcount leak in the Linux kernel's SMB client related to the cifs_sb_tlink structure. Specifically, three calls fail to update the reference count properly, which can lead to resource leaks because the function cifs_put_tlink() is not called as required after successful calls to cifs_sb_tlink().
How can this vulnerability impact me? :
The vulnerability can lead to resource leaks in the system, which may cause degraded performance or instability over time as resources are not properly released.
Ask Our AI Assistant
Need more information? Ask your question to get an AI reply (Powered by our expertise)
0/70