Bug 2376379 (CVE-2025-38201) - CVE-2025-38201 kernel: netfilter: nft_set_pipapo: clamp maximum map bucket size to INT_MAX
Summary: CVE-2025-38201 kernel: netfilter: nft_set_pipapo: clamp maximum map bucket si...
Keywords:
Status: NEW
Alias: CVE-2025-38201
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-07-04 14:02 UTC by OSIDB Bzimport
Modified: 2025-07-04 20:11 UTC (History)
0 users

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Description OSIDB Bzimport 2025-07-04 14:02:36 UTC 
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")
Comment 1 Mauro Matteo Cascella 2025-07-04 19:01:02 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025070418-CVE-2025-38201-9575@gregkh/T
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