netfilter: nf_tables: reject mismatching sum of field_len with set key length
The field length description provides the length of each separated key
field in the concatenation, each field gets rounded up to 32-bits to
calculate the pipapo rule width from pipapo_init(). The set key length
provides the total size of the key aligned to 32-bits.
Register-based arithmetics still allows for combining mismatching set
key length and field length description, eg. set key length 10 and field
description [ 5, 4 ] leading to pipapo width of 12.
Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4102-1 | linux-6.1 security update |
Debian DLA |
DLA-4178-1 | linux security update |
EUVD |
EUVD-2025-6219 | In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: reject mismatching sum of field_len with set key length The field length description provides the length of each separated key field in the concatenation, each field gets rounded up to 32-bits to calculate the pipapo rule width from pipapo_init(). The set key length provides the total size of the key aligned to 32-bits. Register-based arithmetics still allows for combining mismatching set key length and field length description, eg. set key length 10 and field description [ 5, 4 ] leading to pipapo width of 12. |
Ubuntu USN |
USN-7510-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7510-2 | Linux kernel (FIPS) vulnerabilities |
Ubuntu USN |
USN-7510-3 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7510-4 | Linux kernel (Real-time) vulnerabilities |
Ubuntu USN |
USN-7510-5 | Linux kernel (Azure FIPS) vulnerabilities |
Ubuntu USN |
USN-7510-6 | Linux kernel (AWS FIPS) vulnerabilities |
Ubuntu USN |
USN-7510-7 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7510-8 | Linux kernel (AWS) vulnerabilities |
Ubuntu USN |
USN-7511-1 | Linux kernel (GCP) vulnerabilities |
Ubuntu USN |
USN-7511-2 | Linux kernel (GCP FIPS) vulnerabilities |
Ubuntu USN |
USN-7511-3 | Linux kernel (GKE) vulnerabilities |
Ubuntu USN |
USN-7512-1 | Linux kernel (GCP) vulnerabilities |
Ubuntu USN |
USN-7521-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7521-2 | Linux kernel (AWS) vulnerabilities |
Ubuntu USN |
USN-7521-3 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7593-1 | Linux kernel (HWE) vulnerabilities |
Ubuntu USN |
USN-7602-1 | Linux kernel (Xilinx ZynqMP) vulnerabilities |
Ubuntu USN |
USN-7651-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7651-2 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7651-3 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7651-4 | Linux kernel (GCP) vulnerabilities |
Ubuntu USN |
USN-7651-5 | Linux kernel (Raspberry Pi Real-time) vulnerabilities |
Ubuntu USN |
USN-7651-6 | Linux kernel (Raspberry Pi) vulnerabilities |
Ubuntu USN |
USN-7652-1 | Linux kernel (Real-time) vulnerabilities |
Ubuntu USN |
USN-7653-1 | Linux kernel (HWE) vulnerabilities |
Ubuntu USN |
USN-7737-1 | Linux kernel (Azure) vulnerabilities |
Tue, 12 May 2026 13:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Mon, 03 Nov 2025 21:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Mon, 03 Nov 2025 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Thu, 30 Oct 2025 21:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Linux
Linux linux Kernel |
|
| Weaknesses | NVD-CWE-noinfo | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
|
| Metrics |
cvssV3_1
|
cvssV3_1
|
Mon, 26 May 2025 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-682 | |
| Metrics |
cvssV3_1
|
cvssV3_1
|
Thu, 13 Mar 2025 12:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Fri, 07 Mar 2025 02:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
| |
| Metrics |
threat_severity
|
cvssV3_1
|
Thu, 06 Mar 2025 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: reject mismatching sum of field_len with set key length The field length description provides the length of each separated key field in the concatenation, each field gets rounded up to 32-bits to calculate the pipapo rule width from pipapo_init(). The set key length provides the total size of the key aligned to 32-bits. Register-based arithmetics still allows for combining mismatching set key length and field length description, eg. set key length 10 and field description [ 5, 4 ] leading to pipapo width of 12. | |
| Title | netfilter: nf_tables: reject mismatching sum of field_len with set key length | |
| References |
|
|
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-05-12T12:03:59.800Z
Reserved: 2024-12-29T08:45:45.775Z
Link: CVE-2025-21826
No data.
Status : Modified
Published: 2025-03-06T16:15:54.863
Modified: 2026-05-12T13:16:37.677
Link: CVE-2025-21826
OpenCVE Enrichment
No data.
Debian DLA
EUVD
Ubuntu USN