netfilter: nfnetlink_log: account for netlink header size

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Summary

CVECVE-2026-31416
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-13 14:16:10 UTC
Updated2026-07-14 13:18:39 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000320000 probability, percentile 0.092520000 (date 2026-04-21)

Problem Types: NVD-CWE-noinfo

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 9dfa1dfe4d5e5e66a991321ab08afe69759d797a 4ec216410fac9de83c99177a160ebb8d42fad075 git Not specified
CNA Linux Linux affected 9dfa1dfe4d5e5e66a991321ab08afe69759d797a 09883bf257f4243ed5a1fd35078ec6f0d0f3696a git Not specified
CNA Linux Linux affected 9dfa1dfe4d5e5e66a991321ab08afe69759d797a 761b45c661af48da6a065868d59ab1e1f64fd9b6 git Not specified
CNA Linux Linux affected 9dfa1dfe4d5e5e66a991321ab08afe69759d797a 607245c4dbb86d9a10dd8388da0fb82170a99b61 git Not specified
CNA Linux Linux affected 9dfa1dfe4d5e5e66a991321ab08afe69759d797a 6b419700e459fbf707ca1543b7c1b57a60fedb73 git Not specified
CNA Linux Linux affected 9dfa1dfe4d5e5e66a991321ab08afe69759d797a 88a8f56e6276f616baad4274c6b8e4683e26e520 git Not specified
CNA Linux Linux affected 9dfa1dfe4d5e5e66a991321ab08afe69759d797a f08ffa3e1c8e36b6131f69c5eb23700c28cbd262 git Not specified
CNA Linux Linux affected 9dfa1dfe4d5e5e66a991321ab08afe69759d797a 6d52a4a0520a6696bdde51caa11f2d6821cd0c01 git Not specified
CNA Linux Linux affected 3a758a2b78da2f49f7165678faf999e946a0c4b5 git Not specified
CNA Linux Linux affected 131172845aa2c804ffa9423455aee585061ea35e git Not specified
CNA Linux Linux affected b1fef6b81871a396f3b8702077333e769673c87b git Not specified
CNA Linux Linux affected add9183d993c12fb61ce0a674a424341d5be5b36 git Not specified
CNA Linux Linux affected 3.10.61 3.11 semver Not specified
CNA Linux Linux affected 3.12.34 3.13 semver Not specified
CNA Linux Linux affected 3.14.25 3.15 semver Not specified
CNA Linux Linux affected 3.17.4 3.18 semver Not specified
CNA Linux Linux affected 3.18 Not specified
CNA Linux Linux unaffected 3.18 semver Not specified
CNA Linux Linux unaffected 5.10.253 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.203 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.168 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.134 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.81 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.22 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.12 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/761b45c661af48da6a065868d59ab1e1f64fd9b6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/88a8f56e6276f616baad4274c6b8e4683e26e520 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-082556.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/6d52a4a0520a6696bdde51caa11f2d6821cd0c01 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/4ec216410fac9de83c99177a160ebb8d42fad075 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/09883bf257f4243ed5a1fd35078ec6f0d0f3696a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/f08ffa3e1c8e36b6131f69c5eb23700c28cbd262 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-019113.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/6b419700e459fbf707ca1543b7c1b57a60fedb73 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/607245c4dbb86d9a10dd8388da0fb82170a99b61 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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