CVE-2025-38411
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 329ba1cb402ac328224965b8fc7a554a5150908e < d18facba5a5795ad44b2a00a052e3db2fa77ab12 | affected |
| Linux | Linux | 2b1424cd131cfaba4cf7040473133d26cddac088 < 9df7b5ebead649b00bf9a53a798e4bf83a1318fd | affected |
| Linux | Linux | 6.15.3 < 6.15.6 | affected |
Weaknesses
References
- https://git.kernel.org/stable/c/d18facba5a5795ad44b2a00a052e3db2fa77ab12
- https://git.kernel.org/stable/c/9df7b5ebead649b00bf9a53a798e4bf83a1318fd
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