{"id":"CVE-2025-38201","title":"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…","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":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 5.6, < 6.12.35","linux_kernel >= 6.13, < 6.15.4"],"patched":["linux_kernel 6.15.4"],"published":"2025-07-04","updated":"2026-10-15","sourceUpdated":"2026-10-15T02:17:52.223","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-38201","references":[{"url":"https://git.kernel.org/stable/c/0ab3de047808f375a36cd345225572eb3366f3c6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/1fe27f97944017a9d3c5af4d6d95282bff0f1147","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4abccfb61f422300be014b8e734c63344306f009","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/80417057ac60dd80f4816eb426e4e4a5bf696534","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b85e3367a5716ed3662a4fe266525190d2af76df","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d2768016f091f8a5264076b433fd7c3fabb6eb97","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/df524a68d9021c1401965d610bb6e42ee5d9611e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-082556.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-457936.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00235,"epssPercentile":0.14403,"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_kernel >= 5.6, < 6.12.35`\n- `linux_kernel >= 6.13, < 6.15.4`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.15.4`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":221521,"id":"CVE-2025-38201","ts":1792035250138,"field":"cvss","old":null,"new":"7.8"},{"seq":221520,"id":"CVE-2025-38201","ts":1792035250138,"field":"severity","old":"none","new":"high"}]}