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CVE-2026-31418 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: drop logically empty buckets in mtype_del mtype_del() counts empty slots below n->pos in k, but it only drops the bucket when both n->pos and k are zero. This misses buckets whose live entries have all been removed while n->pos still points past deleted slots. Treat a bucket as empty when all positions below n->pos are unused and release it directly instead of shrinking it further.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/68ca0eea0af02bed36c5e2c13e9fa1647c31a7d4 kernel.org
https://git.kernel.org/stable/c/6cea34d7ec6829b62f521a37a287f670144a2233 kernel.org
https://git.kernel.org/stable/c/9862ef9ab0a116c6dca98842aab7de13a252ae02 kernel.org
https://git.kernel.org/stable/c/ad92ee87462f9a3061361d392e9dbfe2e5c1c9fb kernel.org
https://git.kernel.org/stable/c/b7eef00f08b92b0b9efe8ae0df6d0005e6199323 kernel.org
https://git.kernel.org/stable/c/ceacaa76f221a6577aba945bb8873c2e640aeba4 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-31418
NVD Published Date:
04/13/2026
NVD Last Modified:
04/13/2026
Source:
kernel.org