DEBIAN-CVE-2026-72436
In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Don't use testbit() in lockless RCU readers in hash types Sashiko pointed out that there are a few lockless RCU readers using testbit() which is a relaxed atomic operation and provides no memory barrier guarantees. Use testbitacquire() instead where the operation may run parallel with add/del/gc, i.e. is not one from the next cases - protected by region lock - in a set destroy phase - in a new/temporary set creation phase
Package Versions Affected
Automatically patch vulnerabilities without upgrading
CVSS Version



Related Resources
References
https://security-tracker.debian.org/tracker/CVE-2026-72436