vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2026-72435

netfilter: ipset: fix order of kfree_rcu() and rcu_assign_pointer()

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

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
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: fix order of kfree_rcu() and rcu_assign_pointer() Sashiko pointed out that kfree_rcu() was called before rcu_assign_pointer() in handling the comment extension. Fix the order so that rcu_assign_pointer() called first.

Affected

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

Linux Kernel· Linux
90%
4.2b57b2d1fa53fe8563bdfc66a33b844463b9af285
Vendor states this is fixed in 3ca9982a8882470aa0ac4e8bb9a552b181d1efcd (fixed)
Vendor states this is fixed in 50b70f56f3baaff46599f59b2d93fa2540120776 (fixed)
Vendor states this is fixed in 6e98407cb94e035bba98956adc9096a76d8b2a9f (fixed)
Vendor states this is fixed in 8087bb360a936a6314d22b567e4b861656943eb6 (fixed)
Vendor states this is fixed in 93a775fd67f3ef34949a9523bfa69403ee74efdd (fixed)
Vendor states this is fixed in c9787d7c24ffd83019f379455e1b97fb4f0f75eb (fixed)
Vendor states this is fixed in d01b4b471f0fc5c396af62845e972ccf99cee29a (fixed)
Vendor states this is fixed in fcb565966534909377a16be5f7b065db2e25c8b5 (fixed)
Vendor states this is fixed in 4.2 (unaffected)
Vendor states this is fixed in 5.10.261 (unaffected)
Vendor states this is fixed in 5.15.212 (unaffected)
Vendor states this is fixed in 6.1.178 (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 6.6.145 (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 (8)

Source: cverecord
https://git.kernel.org/stable/c/c9787d7c24ffd83019f379455e1b97fb4f0f75eb
Source: cverecord
https://git.kernel.org/stable/c/6e98407cb94e035bba98956adc9096a76d8b2a9f
Source: cverecord
https://git.kernel.org/stable/c/50b70f56f3baaff46599f59b2d93fa2540120776
Source: cverecord
https://git.kernel.org/stable/c/d01b4b471f0fc5c396af62845e972ccf99cee29a
Source: cverecord
https://git.kernel.org/stable/c/fcb565966534909377a16be5f7b065db2e25c8b5
Source: cverecord
https://git.kernel.org/stable/c/8087bb360a936a6314d22b567e4b861656943eb6
Source: cverecord
https://git.kernel.org/stable/c/93a775fd67f3ef34949a9523bfa69403ee74efdd
Source: cverecord
https://git.kernel.org/stable/c/3ca9982a8882470aa0ac4e8bb9a552b181d1efcd

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

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card