{"apiVersion":"1.0","identifier":"CVE-2026-74634","description":"In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Prevent subbuf order change when resizing is disabled Because ring_buffer_subbuf_order_set() frees buffer pages, we can-t allow it when resizing is disabled. A non-consuming reader is at risk of use-after-free (rb_advance_iter()). Return -EBUSY on resize_disabled, matching ring_buffer_resize() behaviour.","publishedAt":"2026-08-22T16:16:36","lastModifiedAt":"2026-08-25T06:18:42","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74634","cvssScore":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","epssProbability":0.00125,"riskScore":0.79,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-74634","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-74634","en":"https://www.redsauce.net/en/cves/CVE-2026-74634","fr":"https://www.redsauce.net/fr/cves/CVE-2026-74634","pt":"https://www.redsauce.net/pt/cves/CVE-2026-74634","de":"https://www.redsauce.net/de/cves/CVE-2026-74634","sk":"https://www.redsauce.net/sk/cves/CVE-2026-74634","el":"https://www.redsauce.net/el/cves/CVE-2026-74634"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-74634"}}