CVE-2025-68761
High
Description
In the Linux kernel, the following vulnerability has been resolved: hfs: fix potential use after free in hfs_correct_next_unused_CNID() This code calls hfs_bnode_put(node) which drops the refcount and then dreferences "node" on the next line. It's only safe to use "node" when we're holding a reference so flip these two lines around.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux
PublishedJan 5, 2026
First seenJan 5, 2026
How to fix
Update
- Linux Linux40a1e0142096dd7dd6cb5373841222b528698588, c105e76bb17cf4b55fe89c6ad4f6a0e3972b5b08 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | a06ec283e125e334155fe13005c76c9f484ce759 ≤ v < 40a1e0142096dd7dd6cb5373841222b528698588, a06ec283e125e334155fe13005c76c9f484ce759 ≤ v < c105e76bb17cf4b55fe89c6ad4f6a0e3972b5b08, 6.18 | 40a1e0142096dd7dd6cb5373841222b528698588, c105e76bb17cf4b55fe89c6ad4f6a0e3972b5b08 |
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