Tracker / CVE-2025-21648
CVE-2025-21648
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: clamp maximum hashtable size to INT_MAX Use INT_MAX as maximum size for the conntrack hashtable. Otherwise, it is possible to hit WARN_ON_ONCE in __kvmalloc_node_noprof() when resizing hashtable because __GFP_NOWARN is unset. See: 0708a0afe291 ("mm: Consider __GFP_NOWARN flag for oversized kvmalloc() calls") Note: hashtable resize is only possible from init_netns.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 4.7.1 → 5.10.234 |
| linux | linux_kernel · 5.11 → 5.15.177 |
| linux | linux_kernel · 5.16 → 6.1.125 |
| linux | linux_kernel · 6.2 → 6.6.72 |
| linux | linux_kernel · 6.7 → 6.12.10 |
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.