What’s Vulnerable › Vulnerabilities
CVE-2025-38498: do_change_type(): refuse to operate on unmounted/not ours mounts
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-07-30 · updated 2026-07-30
Description
In the Linux kernel, the following vulnerability has been resolved: do_change_type(): refuse to operate on unmounted/not ours mounts Ensure that propagation settings can only be changed for mounts located in the caller's mount namespace. This change aligns permission checking with the rest of mount(2).
Affected products
- Debian Linux: 11.0
- Linux kernel: from 2.6.15 before 5.4.295; from 5.5 before 5.10.239; from 5.11 before 5.15.186; from 5.16 before 6.1.142; from 6.2 before 6.6.94; from 6.7 before 6.12.34 — fixed in 5.10.239, 5.15.186, 5.4.295, 6.1.142, 6.12.34, 6.15.3
How to fix
Upgrade to a fixed version: Linux kernel 5.10.239, 5.15.186, 5.4.295, 6.1.142. Check the vendor advisory for mitigations.
References
- https://git.kernel.org/stable/c/064014f7812744451d5d0592f3d2bcd727f2ee93
- https://git.kernel.org/stable/c/12f147ddd6de7382dad54812e65f3f08d05809fc
- https://git.kernel.org/stable/c/19554c79a2095ddde850906a067915c1ef3a4114
- https://git.kernel.org/stable/c/432a171d60056489270c462e651e6c3a13f855b1
- https://git.kernel.org/stable/c/4f091ad0862b02dc42a19a120b7048de848561f8
- https://git.kernel.org/stable/c/787937c4e373f1722c4343e5a5a4eb0f8543e589
- https://git.kernel.org/stable/c/9c1ddfeb662b668fff69c5f1cfdd9f5d23d55d23
- https://git.kernel.org/stable/c/c7d11fdf8e5db5f34a6c062c7e6ba3a0971879d2
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-089022.html
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