CVE-2025-40135
Published: November 14, 2025Last modified: June 24, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU in ip6_xmit() Use RCU in ip6_xmit() in order to use dst_dev_rcu() to prevent possible UAF.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.1 |
| Attack Vector | NETWORK |
| Attack complexity | HIGH |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.167-r0) |
| 25 LTS | linux-lts | Fixed (6.12.80-r0) | |
| Stream | linux-lts | Fixed (6.18.35-r1) |
References
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://git.kernel.org/stable/c/9085e56501d93af9f2d7bd16f7fcfacdde47b99c
- https://git.kernel.org/stable/c/bd0905e2122e3680968cd0741966983490bf2ed3
- https://git.kernel.org/stable/c/f0a54d00d2f36de40266f47c27989853e8588656
- https://git.kernel.org/stable/c/f69fec6287565fdeb61f65e700a1184352306943
- https://git.kernel.org/stable/c/f7f9e924f23684b4b23cd9f976cceab24a968e34