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CVE-2026-72434

netfilter: ipset: make sure gc is properly stopped

HIGH
7.8
CVSS Score
Published: August 15, 2026 at 05:56 AM UTC
Updated: October 16, 2026 at 07:17 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: make sure gc is properly stopped Sashiko noticed that when destroying a set, cancel_delayed_work_sync() was called while gc calls queue_delayed_work() unconditionally which can lead not to properly shutting down the gc.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
5.4.245.5.85.65dd9488ae41070b69d2f4acb580f77db5705f9caa469bab3386aebff33c59506f3a95e35b91118fdf66ee0410b1c3481ee75e5db9b34547b4d582465
Vendor states this is fixed in 12088da6add5b003657c8506c5b0fcef835083b8 (fixed)
Vendor states this is fixed in 4a597a87e2e2f608edb6be2c510dc826b4fdfb53 (fixed)
Vendor states this is fixed in c78bd5195a5998094a5866df702fbeafda60dafb (fixed)
Vendor states this is fixed in c940d1b96248c3081b664ede5418078bdc7c8c07 (fixed)
Affected range stops below 5.5, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 5.6 (unaffected)
Vendor states this is fixed in 6.12.97 (unaffected)
Vendor states this is fixed in 6.18.40 (unaffected)
Vendor states this is fixed in 7.1.5 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

Source: cverecord
https://git.kernel.org/stable/c/c940d1b96248c3081b664ede5418078bdc7c8c07
Source: cverecord
https://git.kernel.org/stable/c/12088da6add5b003657c8506c5b0fcef835083b8
Source: cverecord
https://git.kernel.org/stable/c/c78bd5195a5998094a5866df702fbeafda60dafb
Source: cverecord
https://git.kernel.org/stable/c/4a597a87e2e2f608edb6be2c510dc826b4fdfb53

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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