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DEBIAN-CVE-2026-31418

DEBIAN-CVE-2026-31418 PUBLISHED CVSS 5.5 MEDIUM

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.

Risk Scores

CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

VendorProductVersions
Debian:14linux6.13~rc7-1~exp1, 6.12.100-1, 6.12.101-1
Debian:13linux0, 6.12.38-1, 6.12.41-1
Debian:12linux6.1.153-1, 6.1.158-1, 6.1.159-1

Timeline

  • Apr 13, 2026 CVE Published
  • Oct 15, 2026 CVE Updated
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