netfilter: nfnetlink_log: account for netlink header size
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.
02 / AFFECTED SOFTWARE
Affected packages
491 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- 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
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31416.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-31416