CVE-2025-68761
BaseFortify
Publication date: 2026-01-05
Last updated on: 2026-01-08
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | 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 is a use-after-free issue in the Linux kernel's HFS filesystem code, specifically in the function hfs_correct_next_unused_CNID(). The code incorrectly calls hfs_bnode_put(node), which decreases the reference count and potentially frees the node, but then continues to dereference the node on the next line without ensuring it is still valid. This can lead to accessing freed memory, causing instability or security issues. The fix involves reordering the code to ensure the node is only used while a valid reference is held.
How can this vulnerability impact me? :
This vulnerability can lead to use-after-free conditions in the Linux kernel, which may cause system crashes, data corruption, or potentially allow an attacker to execute arbitrary code or escalate privileges if exploited. It affects the stability and security of systems running vulnerable versions of the Linux kernel with HFS filesystem support.