{"apiVersion":"1.0","identifier":"CVE-2026-72436","description":"In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Don-t use test_bit() in lockless RCU readers in hash types Sashiko pointed out that there are a few lockless RCU readers using test_bit() which is a relaxed atomic operation and provides no memory barrier guarantees. Use test_bit_acquire() 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","publishedAt":"2026-08-15T06:22:17","lastModifiedAt":"2026-08-17T06:19:10","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72436","cvssScore":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","epssProbability":0.00712,"riskScore":1.04,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-72436","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-72436","en":"https://www.redsauce.net/en/cves/CVE-2026-72436","fr":"https://www.redsauce.net/fr/cves/CVE-2026-72436","pt":"https://www.redsauce.net/pt/cves/CVE-2026-72436","de":"https://www.redsauce.net/de/cves/CVE-2026-72436","sk":"https://www.redsauce.net/sk/cves/CVE-2026-72436","el":"https://www.redsauce.net/el/cves/CVE-2026-72436"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-72436"}}