CVE-2026-53131 Details
Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: require Ethernet MAC header before using eth_hdr() `ip6t_eui64`, `xt_mac`, the `bitmap:ip,mac`, `hash:ip,mac`, and `hash:mac` ipset types, and `nf_log_syslog` access `eth_hdr(skb)` after either assuming that the skb is associated with an Ethernet device or checking only that the `ETH_HLEN` bytes at `skb_mac_header(skb)` lie between `skb->head` and `skb->data`. Make these paths first verify that the skb is associated with an Ethernet device, that the MAC header was set, and that it spans at least a full Ethernet header before accessing `eth_hdr(skb)`.
A vulnerability in the Linux kernel's netfilter component has been addressed. This issue arose because certain netfilter paths, including `ip6t_eui64`, `xt_mac`, various `ipset` types, and `nf_log_syslog`, accessed the Ethernet header of a packet without proper validation. The netfilter code assumed that the packet was associated with an Ethernet device or only checked that the initial bytes of the MAC header were within the bounds of the packet data. This could lead to incorrect handling of packets, potentially causing issues in network filtering or logging.
Users should update to the latest version of the Linux kernel where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/063f43361e884acd7300790e90194430275d0d0c | kernel.org | Patch |
| https://git.kernel.org/stable/c/367abcacc13a8e2e7624408b7f593bd1e60e49d9 | kernel.org | Patch |
| https://git.kernel.org/stable/c/4435888e1bf139d2bfe5911643d4217382136743 | kernel.org | Patch |
| https://git.kernel.org/stable/c/5d634afb8b83b49de562792fd0d047416a43bd4d | kernel.org | Patch |
| https://git.kernel.org/stable/c/62443dc21114c0bbc476fa62973db89743f2f137 | kernel.org | Patch |
| https://git.kernel.org/stable/c/726abf97566867f808fec9d8a408eb9698bd570a | kernel.org | Patch |
| https://git.kernel.org/stable/c/cea435ea7e868ea6fdf039bc4f2090c1d829b556 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 2.6.12.1, < 5.15.210 >= 5.16, < 6.1.176 >= 6.2, < 6.6.143 >= 6.7, < 6.12.94 >= 6.13, < 6.18.36 >= 6.19, < 7.0.13 2.6.12 - 2.6.12 rc2 2.6.12 rc3 2.6.12 rc4 2.6.12 rc5 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 6, 2026 | Initial Analysis | [email protected] |
| Jun 29, 2026 | CVE Modified | kernel.org |
| Jun 28, 2026 | CVE Modified | kernel.org |
| Jun 25, 2026 | New CVE Received | kernel.org |