Description
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
References10
- git.kernel.org/stable/c/0ab3de047808f375a36cd345225572eb3366f3c6 Patch
- git.kernel.org/stable/c/1fe27f97944017a9d3c5af4d6d95282bff0f1147 Patch
- git.kernel.org/stable/c/4abccfb61f422300be014b8e734c63344306f009 Patch
- git.kernel.org/stable/c/80417057ac60dd80f4816eb426e4e4a5bf696534 Patch
- git.kernel.org/stable/c/b85e3367a5716ed3662a4fe266525190d2af76df Patch
- git.kernel.org/stable/c/d2768016f091f8a5264076b433fd7c3fabb6eb97 Patch
- git.kernel.org/stable/c/df524a68d9021c1401965d610bb6e42ee5d9611e Patch
- cert-portal.siemens.com/productcert/html/ssa-019113.html
- cert-portal.siemens.com/productcert/html/ssa-082556.html
- cert-portal.siemens.com/productcert/html/ssa-457936.html
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 15 · as of 7 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.