{"apiVersion":"1.0","identifier":"CVE-2026-99167","description":"In the Linux kernel, the following vulnerability has been resolved: net/sched: fix use-after-free in __tcf_action_put() __tcf_action_put() decrements the reference count before decrementing the binding count. Another thread can free the action between these operations, causing the binding-count update to access freed memory. KASAN reports it as: BUG: KASAN: slab-use-after-free in __tcf_action_put+0x327/0x340 Write of size 4 at addr ff11000000d46420 by task tc-put-pause/64 Hold the action IDR mutex across both counter updates and IDR removal, keeping cleanup outside the lock.","publishedAt":"2026-10-28T11:17:37","lastModifiedAt":"2026-10-31T13:17:58","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-99167","cvssScore":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","epssProbability":0.0013,"riskScore":0.79,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-99167","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-99167","en":"https://www.redsauce.net/en/cves/CVE-2026-99167","fr":"https://www.redsauce.net/fr/cves/CVE-2026-99167","pt":"https://www.redsauce.net/pt/cves/CVE-2026-99167","de":"https://www.redsauce.net/de/cves/CVE-2026-99167","sk":"https://www.redsauce.net/sk/cves/CVE-2026-99167","el":"https://www.redsauce.net/el/cves/CVE-2026-99167"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-99167"}}