{"id":"CVE-2025-38201","title":"netfilter: nft_set_pipapo: clamp maximum map bucket size to INT_MAX","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_set_pipapo: clamp maximum map bucket size to INT_MAX\n\nOtherwise, it is possible to hit WARN_ON_ONCE in __kvmalloc_node_noprof()\nwhen resizing hashtable b…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 3c4287f62044a90e73a561aa05fc46e62da173da < 1fe27f97944017a9d3c5af4d6d95282bff0f1147","Linux >= 3c4287f62044a90e73a561aa05fc46e62da173da < 4abccfb61f422300be014b8e734c63344306f009","Linux >= 3c4287f62044a90e73a561aa05fc46e62da173da < 80417057ac60dd80f4816eb426e4e4a5bf696534","Linux >= 3c4287f62044a90e73a561aa05fc46e62da173da < df524a68d9021c1401965d610bb6e42ee5d9611e","Linux >= 3c4287f62044a90e73a561aa05fc46e62da173da < 0ab3de047808f375a36cd345225572eb3366f3c6","Linux >= 3c4287f62044a90e73a561aa05fc46e62da173da < d2768016f091f8a5264076b433fd7c3fabb6eb97","Linux >= 3c4287f62044a90e73a561aa05fc46e62da173da < b85e3367a5716ed3662a4fe266525190d2af76df","Linux 5.6"],"published":"2025-07-04","updated":"2026-09-08","sourceUpdated":"2026-09-08T08:41:47.895Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-38201","references":[{"url":"https://git.kernel.org/stable/c/1fe27f97944017a9d3c5af4d6d95282bff0f1147"},{"url":"https://git.kernel.org/stable/c/4abccfb61f422300be014b8e734c63344306f009"},{"url":"https://git.kernel.org/stable/c/80417057ac60dd80f4816eb426e4e4a5bf696534"},{"url":"https://git.kernel.org/stable/c/df524a68d9021c1401965d610bb6e42ee5d9611e"},{"url":"https://git.kernel.org/stable/c/0ab3de047808f375a36cd345225572eb3366f3c6"},{"url":"https://git.kernel.org/stable/c/d2768016f091f8a5264076b433fd7c3fabb6eb97"},{"url":"https://git.kernel.org/stable/c/b85e3367a5716ed3662a4fe266525190d2af76df"}],"tags":["cve.org"],"epss":0.00201,"epssPercentile":0.10256,"ingestedAt":"2026-09-08T15:33:26.997Z","slug":"CVE-2025-38201","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_set_pipapo: clamp maximum map bucket size to INT_MAX\n\nOtherwise, it is possible to hit WARN_ON_ONCE in __kvmalloc_node_noprof()\nwhen resizing hashtable because __GFP_NOWARN is unset.\n\nSimilar to:\n\n  b541ba7d1f5a (\"netfilter: conntrack: clamp maximum hashtable size to INT_MAX\")\n\n## Affected\n\n- `Linux >= 3c4287f62044a90e73a561aa05fc46e62da173da < 1fe27f97944017a9d3c5af4d6d95282bff0f1147`\n- `Linux >= 3c4287f62044a90e73a561aa05fc46e62da173da < 4abccfb61f422300be014b8e734c63344306f009`\n- `Linux >= 3c4287f62044a90e73a561aa05fc46e62da173da < 80417057ac60dd80f4816eb426e4e4a5bf696534`\n- `Linux >= 3c4287f62044a90e73a561aa05fc46e62da173da < df524a68d9021c1401965d610bb6e42ee5d9611e`\n- `Linux >= 3c4287f62044a90e73a561aa05fc46e62da173da < 0ab3de047808f375a36cd345225572eb3366f3c6`\n- `Linux >= 3c4287f62044a90e73a561aa05fc46e62da173da < d2768016f091f8a5264076b433fd7c3fabb6eb97`\n- `Linux >= 3c4287f62044a90e73a561aa05fc46e62da173da < b85e3367a5716ed3662a4fe266525190d2af76df`\n- `Linux 5.6`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}