CVE-2024-26581: netfilter: nft_set_rbtree: skip end interval element from gc

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-02-20 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_rbtree: skip end interval element from gc rbtree lazy gc on insert might collect an end interval element that has been just added in this transactions, skip end interval elements that are not yet active.

Affected products

Debian Linux: 10.0
Linux kernel: from 5.4.262 before 5.4.269; from 5.10.190 before 5.10.210; from 5.15.124 before 5.15.149; from 6.1.43 before 6.1.78; from 6.4.8 before 6.6.17; from 6.7 before 6.7.5 — fixed in 5.10.210, 5.15.149, 5.4.269, 6.1.78, 6.6.17, 6.7.5

How to fix

Upgrade to a fixed version: Linux kernel 5.10.210, 5.15.149, 5.4.269, 6.1.78. Check the vendor advisory for mitigations.

References

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