CVE-2026-31416
Published: April 15, 2026Last modified: June 24, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_log: account for netlink header size This is a followup to an old bug fix: NLMSG_DONE needs to account for the netlink header size, not just the attribute size. This can result in a WARN splat + drop of the netlink message, but other than this there are no ill effects.
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 (6.1.168-r0) |
| 25 LTS | linux-lts | Fixed (6.12.81-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/09883bf257f4243ed5a1fd35078ec6f0d0f3696a
- https://git.kernel.org/stable/c/4ec216410fac9de83c99177a160ebb8d42fad075
- https://git.kernel.org/stable/c/607245c4dbb86d9a10dd8388da0fb82170a99b61
- https://git.kernel.org/stable/c/6b419700e459fbf707ca1543b7c1b57a60fedb73
- https://git.kernel.org/stable/c/6d52a4a0520a6696bdde51caa11f2d6821cd0c01
- https://git.kernel.org/stable/c/761b45c661af48da6a065868d59ab1e1f64fd9b6
- https://git.kernel.org/stable/c/88a8f56e6276f616baad4274c6b8e4683e26e520
- https://git.kernel.org/stable/c/f08ffa3e1c8e36b6131f69c5eb23700c28cbd262