CVE-2025-40176
BaseFortify
Publication date: 2025-11-12
Last updated on: 2025-11-12
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | kernel | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability in the Linux kernel's TLS implementation occurs when the function tls_strp_msg_hold fails to clone the input skb (socket buffer) during asynchronous decryption. If the clone allocation fails but the async decryption proceeds, it can cause use-after-free (UAF) issues on the skb or write into userspace memory after the recv() call has returned. The fix involves waiting for all pending decryption requests if the clone allocation fails, preventing these unsafe conditions.
How can this vulnerability impact me? :
This vulnerability can lead to memory safety issues such as use-after-free and unauthorized memory writes into userspace after a network receive call. This can cause system instability, crashes, or potentially allow attackers to execute arbitrary code or corrupt memory, compromising system security and reliability.