CVE-2025-38411
netfs: Fix double put of request
- State
- Published
- Severity
- 9.8 Critical
- Published
- Jul 25, 2025
- Updated
- Aug 5, 2026
- Reserved
- Apr 16, 2025
Description
In the Linux kernel, the following vulnerability has been resolved:
netfs: Fix double put of request
If a netfs request finishes during the pause loop, it will have the ref that belongs to the IN_PROGRESS flag removed at that point - however, if it then goes to the final wait loop, that will *also* put the ref because it sees that the IN_PROGRESS flag is clear and incorrectly assumes that this happened when it called the collector.
In fact, since IN_PROGRESS is clear, we shouldn't call the collector again since it's done all the cleanup, such as calling ->ki_complete().
Fix this by making netfs_collect_in_app() just return, indicating that we're done if IN_PROGRESS is removed.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | Linux |
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
LinuxLinux |
|
LinuxLinux |
|
References
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