CVE-2026-53131
critical · 9.4In 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)`.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| linux | linux_kernel | >= 2.6.12.1, < 5.15.210 |
| linux | linux_kernel | >= 5.16, < 6.1.176 |
| linux | linux_kernel | >= 6.2, < 6.6.143 |
| linux | linux_kernel | >= 6.7, < 6.12.94 |
| linux | linux_kernel | >= 6.13, < 6.18.36 |
| linux | linux_kernel | >= 6.19, < 7.0.13 |
| linux | linux_kernel | 2.6.12 |
| linux | linux_kernel | 2.6.12 |
| linux | linux_kernel | 2.6.12 |
| linux | linux_kernel | 2.6.12 |
| linux | linux_kernel | 2.6.12 |
Check a specific version with /api/v1/cve/match.
References
- https://git.kernel.org/stable/c/063f43361e884acd7300790e90194430275d0d0c
- https://git.kernel.org/stable/c/367abcacc13a8e2e7624408b7f593bd1e60e49d9
- https://git.kernel.org/stable/c/4435888e1bf139d2bfe5911643d4217382136743
- https://git.kernel.org/stable/c/5d634afb8b83b49de562792fd0d047416a43bd4d
- https://git.kernel.org/stable/c/62443dc21114c0bbc476fa62973db89743f2f137
- https://git.kernel.org/stable/c/726abf97566867f808fec9d8a408eb9698bd570a
- https://git.kernel.org/stable/c/cea435ea7e868ea6fdf039bc4f2090c1d829b556
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-53131