CVE-2025-38201

CVE-2025-38201 affects the Linux kernel netfilter nft_set_pipapo. The issue arises when resizing hashtables in netfilter, where WARN_ON_ONCE can trigger if GFP flags allow high bucket counts; the fix clamps the maximum map bucket size to INT_MAX. The vulnerability is described as local-attack-vec...

CVE-2025-38201 netfilter: nft_set_pipapo: clamp maximum map bucket size to INT_MAX

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetpipapo: clamp maximum map bucket size to INTMAX Otherwise, it is possible to hit WARNONONCE in kvmallocnodenoprof when resizing hashtable because GFPNOWARN is unset. Similar to: b541ba7d1f5a "netfilter: conntrack...