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CVE-2025-38247
Published: Jul 9, 2025
Modified: May 11, 2026
PUBLISHED
Description
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.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected c4a16820d90199409c9bf01c4f794e1e9e8d8fd8 - < 142db4e76110dd80239f4e79810f85ea1735ad60affected c4a16820d90199409c9bf01c4f794e1e9e8d8fd8 - < 0748e553df0225754c316a92af3a77fdc057b358 |
Linux | Linux | affected 6.15unaffected 0 - < 6.15unaffected 6.15.5 - <= 6.15.*unaffected 6.16 - <= * |
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