{"apiVersion":"1.0","identifier":"CVE-2026-72297","description":"In the Linux kernel, the following vulnerability has been resolved: net: atm: reject out-of-range traffic classes in QoS validation Reject ATM traffic classes above ATM_ANYCLASS in check_tp(). SO_ATMQOS stores the supplied QoS after check_qos() succeeds, so accepting larger values leaves invalid traffic_class values in vcc->qos. That bad state later reaches pvc_info(), which indexes class_name[] with vcc->qos.{rx,tp}.traffic_class. Values above ATM_ANYCLASS cause an out-of-bounds read when /proc/net/atm/pvc is read. Tighten the existing QoS validation so invalid traffic_class values are rejected at the point where user supplied QoS is accepted.","publishedAt":"2026-08-15T06:22:02","lastModifiedAt":"2026-08-17T06:18:32","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72297","cvssScore":7.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","epssProbability":0.00159,"riskScore":0.72,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-72297","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-72297","en":"https://www.redsauce.net/en/cves/CVE-2026-72297","fr":"https://www.redsauce.net/fr/cves/CVE-2026-72297","pt":"https://www.redsauce.net/pt/cves/CVE-2026-72297","de":"https://www.redsauce.net/de/cves/CVE-2026-72297","sk":"https://www.redsauce.net/sk/cves/CVE-2026-72297","el":"https://www.redsauce.net/el/cves/CVE-2026-72297"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-72297"}}