7.8

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

Modified
AliasesUBUNTU-CVE-2025-38201DEBIAN-CVE-2025-38201
Published 04-07-2025Last modified 15-10-2026

Vulnerability summary

CVE-2025-38201 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.24%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 40 · Related 37
DLA-4498-1DLA-4499-1DSA-6163-1OPENSUSE-SU-2025:20081-1SUSE-SU-2025:03272-1SUSE-SU-2025:03290-1

Timeline

  1. 04-07-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

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")

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

Increase +0.02 pp

From 0.21% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu135 products
  • linux< 5.15.0-185.195 | < 6.8.0-117.117
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1111.118 | < 6.8.0-1055.58
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 3c4287f62044a90e73a561aa05fc46e62da173da, < 1fe27f97944017a9d3c5af4d6d95282bff0f1147 | ≥ 3c4287f62044a90e73a561aa05fc46e62da173da, < 4abccfb61f422300be014b8e734c63344306f009 | ≥ 3c4287f62044a90e73a561aa05fc46e62da173da, < 80417057ac60dd80f4816eb426e4e4a5bf696534 | ≥ 3c4287f62044a90e73a561aa05fc46e62da173da, < df524a68d9021c1401965d610bb6e42ee5d9611e | ≥ 3c4287f62044a90e73a561aa05fc46e62da173da, < 0ab3de047808f375a36cd345225572eb3366f3c6 | ≥ 3c4287f62044a90e73a561aa05fc46e62da173da, < d2768016f091f8a5264076b433fd7c3fabb6eb97 | ≥ 3c4287f62044a90e73a561aa05fc46e62da173da, < b85e3367a5716ed3662a4fe266525190d2af76df | 5.6
  • linux_kernel≥ 5.6, < 6.12.35 | ≥ 6.13, < 6.15.4
Debian1 product
  • linux< 6.1.164-1 | < 6.12.35-1

3 vendors · 138 products

References

36 links
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