Tracker / CVE-2026-23083
CVE-2026-23083
High 7.8
In the Linux kernel, the following vulnerability has been resolved: fou: Don't allow 0 for FOU_ATTR_IPPROTO. fou_udp_recv() has the same problem mentioned in the previous patch. If FOU_ATTR_IPPROTO is set to 0, skb is not freed by fou_udp_recv() nor "resubmit"-ted in ip_protocol_deliver_rcu(). Let's forbid 0 for FOU_ATTR_IPPROTO.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 3.18 → 5.10.249 |
| linux | linux_kernel · 5.11 → 5.15.199 |
| linux | linux_kernel · 5.16 → 6.1.162 |
| linux | linux_kernel · 6.13 → 6.18.8 |
| linux | linux_kernel · 6.2 → 6.6.122 |
| linux | linux_kernel · 6.7 → 6.12.68 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.