{"cve":"CVE-2026-72297","nvd":{"published":"2026-08-15T06:22:02.293","modified":"2026-10-16T19:17:19.633","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: atm: reject out-of-range traffic classes in QoS validation\n\nReject ATM traffic classes above ATM_ANYCLASS in check_tp().\nSO_ATMQOS stores the supplied QoS after check_qos() succeeds, so\naccepting larger values leaves invalid traffic_class values in\nvcc->qos.\n\nThat bad state later reaches pvc_info(), which indexes class_name[]\nwith vcc->qos.{rx,tp}.traffic_class. Values above ATM_ANYCLASS cause\nan out-of-bounds read when /proc/net/atm/pvc is read.\n\nTighten the existing QoS validation so invalid traffic_class values\nare rejected at the point where user supplied QoS is accepted.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","score":7.1},"cwes":[],"references":["https://git.kernel.org/stable/c/15444b57fdc6fc3f3e22a87f791ae5be81e6ecf5","https://git.kernel.org/stable/c/1a6dda72455b399ce9c1a12695471dc4d5c61add","https://git.kernel.org/stable/c/2b3e241729e87afed13ac0f666472d5d6ca42e87","https://git.kernel.org/stable/c/367acd288bc6255e247cb1a1efbf5c6567cab423","https://git.kernel.org/stable/c/513f820b3f0cf4462e17d84c39ed3948d061a6ea"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:48:17.459049833+00:00"},"epss":{"cve":"CVE-2026-72297","score":0.00164,"percentile":0.05569,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}