CVE-2025-38499
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns
What we want is to verify there is that clone won't expose something hidden by a mount we wouldn't be able to undo. "Wouldn't be able to undo" may be a result of MNT_LOCKED on a child, but it may also come from lacking admin rights in the userns of the namespace mount belongs to.
clone_private_mnt() checks the former, but not the latter.
There's a number of rather confusing CAP_SYS_ADMIN checks in various userns during the mount, especially with the new mount API; they serve different purposes and in case of clone_private_mnt() they usually, but not always end up covering the missing check mentioned above.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 427215d85e8d1476da1a86b8d67aceb485eb3631 < 36fecd740de2d542d2091d65d36554ee2bcf9c65 | affected |
| Linux | Linux | 427215d85e8d1476da1a86b8d67aceb485eb3631 < d717325b5ecf2a40daca85c61923e17f32306179 | affected |
| Linux | Linux | 427215d85e8d1476da1a86b8d67aceb485eb3631 < dc6a664089f10eab0fb36b6e4f705022210191d2 | affected |
| Linux | Linux | 427215d85e8d1476da1a86b8d67aceb485eb3631 < e77078e52fbf018ab986efb3c79065ab35025607 | affected |
| Linux | Linux | 427215d85e8d1476da1a86b8d67aceb485eb3631 < 38628ae06e2a37770cd794802a3f1310cf9846e3 | affected |
| Linux | Linux | 427215d85e8d1476da1a86b8d67aceb485eb3631 < c28f922c9dcee0e4876a2c095939d77fe7e15116 | affected |
| Linux | Linux | c6e8810d25295acb40a7b69ed3962ff181919571 | affected |
| Linux | Linux | e3eee87c846dc47f6d8eb6d85e7271f24122a279 | affected |
| Linux | Linux | 517b875dfbf58f0c6c9e32dc90f5cf42d71a42ce | affected |
| Linux | Linux | 963d85d630dabe75a3cfde44a006fec3304d07b8 | affected |
| Linux | Linux | 812f39ed5b0b7f34868736de3055c92c7c4cf459 | affected |
| Linux | Linux | 6a002d48a66076524f67098132538bef17e8445e | affected |
| Linux | Linux | 41812f4b84484530057513478c6770590347dc30 | affected |
| Linux | Linux | 4.4.281 < 4.5 | affected |
| Linux | Linux | 4.9.280 < 4.10 | affected |
| Linux | Linux | 4.14.244 < 4.15 | affected |
| Linux | Linux | 4.19.204 < 4.20 | affected |
| Linux | Linux | 5.4.141 < 5.5 | affected |
| Linux | Linux | 5.10.59 < 5.11 | affected |
| Linux | Linux | 5.13.11 < 5.14 | affected |
| Linux | Linux | 5.14 | affected |
| Linux | Linux | 0 < 5.14 | unaffected |
| Linux | Linux | 5.15.190 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.147 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.100 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.40 <= 6.12.* | unaffected |
| Linux | Linux | 6.15.3 <= 6.15.* | unaffected |
| Linux | Linux | 6.16 <= * | unaffected |
Weaknesses
ADP Enrichment
CVE Program Container
Additional References
Additional References
References
- https://git.kernel.org/stable/c/36fecd740de2d542d2091d65d36554ee2bcf9c65
- https://git.kernel.org/stable/c/d717325b5ecf2a40daca85c61923e17f32306179
- https://git.kernel.org/stable/c/dc6a664089f10eab0fb36b6e4f705022210191d2
- https://git.kernel.org/stable/c/e77078e52fbf018ab986efb3c79065ab35025607
- https://git.kernel.org/stable/c/38628ae06e2a37770cd794802a3f1310cf9846e3
- https://git.kernel.org/stable/c/c28f922c9dcee0e4876a2c095939d77fe7e15116
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