CVE-2025-38542
Published: August 19, 2025Last modified: August 19, 2025
Description
In the Linux kernel, the following vulnerability has been resolved: net: appletalk: Fix device refcount leak in atrtr_create() When updating an existing route entry in atrtr_create(), the old device reference was not being released before assigning the new device, leading to a device refcount leak. Fix this by calling dev_put() to release the old device reference before holding the new one.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.147-r0) |
| 25 LTS | linux-lts | Fixed (6.12.41-r0) | |
| Stream | linux-lts | Fixed (6.12.41-r0) |
References
- https://git.kernel.org/stable/c/473f3eadfc73b0fb6d8dee5829d19a5772e387f7
- https://git.kernel.org/stable/c/4a17370da6e476d3d275534e9e9cd2d02c57ca46
- https://git.kernel.org/stable/c/64124cf0aab0dd1e18c0fb5ae66e45741e727f8b
- https://git.kernel.org/stable/c/711c80f7d8b163d3ecd463cd96f07230f488e750
- https://git.kernel.org/stable/c/a7852b01793669248dce0348d14df89e77a32afd
- https://git.kernel.org/stable/c/b2f5dfa87367fdce9f8b995bc6c38f64f9ea2c90
- https://git.kernel.org/stable/c/b92bedf71f25303e203a4e657489d76691a58119
- https://git.kernel.org/stable/c/d2e9f50f0bdad73b64a871f25186b899624518c4
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html