CVE-2025-38247
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
userns and mnt_idmap leak in open_tree_attr(2)
Once want_mount_setattr() has returned a positive, it does require finish_mount_kattr() to release ->mnt_userns. Failing do_mount_setattr() does not change that.
As the result, we can end up leaking userns and possibly mnt_idmap as well.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | c4a16820d90199409c9bf01c4f794e1e9e8d8fd8 < 142db4e76110dd80239f4e79810f85ea1735ad60 | affected |
| Linux | Linux | c4a16820d90199409c9bf01c4f794e1e9e8d8fd8 < 0748e553df0225754c316a92af3a77fdc057b358 | affected |
| Linux | Linux | 6.15 | affected |
| Linux | Linux | 0 < 6.15 | unaffected |
| Linux | Linux | 6.15.5 <= 6.15.* | unaffected |
| Linux | Linux | 6.16 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/142db4e76110dd80239f4e79810f85ea1735ad60
- https://git.kernel.org/stable/c/0748e553df0225754c316a92af3a77fdc057b358
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