CVE-2025-38201: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_pipapo: clamp maximum map bucket size to INT_MAX Otherwise, it is possible to hit WARN_ON_ONCE in __kvmalloc_node_noprof() when resizing hashtable because __GFP_NOWARN is unset. Similar to: b541ba7d1f5a ("netfilter: conntrack: clamp maximum hashtable size to INT_MAX")

Affected products

• Linux Linux Kernel: from 5.6, before 6.12.35 (fixed in 6.12.35); from 6.13, before 6.15.4 (fixed in 6.15.4)

Published 2025-07-04. Last modified 2026-07-14.