CVE-2025-38587
Published: August 20, 2025Last modified: August 20, 2025
Description
In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible infinite loop in fib6_info_uses_dev() fib6_info_uses_dev() seems to rely on RCU without an explicit protection. Like the prior fix in rt6_nlmsg_size(), we need to make sure fib6_del_route() or fib6_add_rt2node() have not removed the anchor from the list, or we risk an infinite loop.
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 (6.1.151-r0) |
| 25 LTS | linux-lts | Not affected (6.6.89-r0) | |
| Stream | linux-lts | Not affected (6.1.33-r0) |
References
- https://git.kernel.org/stable/c/16d21816c0918f8058b5fc14cbe8595d62046e2d
- https://git.kernel.org/stable/c/9cb6de8ee144a94ae7a40bdb32560329ab7276f0
- https://git.kernel.org/stable/c/bc85e62394f008fa848c4ba02c936c735a3e8ef5
- https://git.kernel.org/stable/c/db65739d406c72776fbdbbc334be827ef05880d2
- https://git.kernel.org/stable/c/e09be457b71b983a085312ff9e981f51e4ed3211
- https://git.kernel.org/stable/c/f8d8ce1b515a0a6af72b30502670a406cfb75073
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html