{"apiVersion":"1.0","identifier":"CVE-2026-74736","description":"In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_bpf: reject dev-bound programs bound to a different device cls_bpf_prog_from_efd() obtained a SCHED_CLS program via bpf_prog_get_type_dev() but never verified that a device-bound (offloaded) program-s bound netdev matches the TC netdev the classifier is being attached to. This let a program loaded with prog_ifindex for device A be attached via cls_bpf + skip_sw to device B; deleting device A then destroyed the program-s offload state while it was still attached to device B, triggering a netdevsim WARN (panic with panic_on_warn=1). Mirror the XDP attach path (net/core/dev.c) and reject the attach with -EINVAL when a dev-bound program-s bound device does not match the target device.","publishedAt":"2026-08-26T15:16:52","lastModifiedAt":"2026-08-27T06:17:22","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74736","cvssScore":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","epssProbability":0.00138,"riskScore":0.79,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-74736","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-74736","en":"https://www.redsauce.net/en/cves/CVE-2026-74736","fr":"https://www.redsauce.net/fr/cves/CVE-2026-74736","pt":"https://www.redsauce.net/pt/cves/CVE-2026-74736","de":"https://www.redsauce.net/de/cves/CVE-2026-74736","sk":"https://www.redsauce.net/sk/cves/CVE-2026-74736","el":"https://www.redsauce.net/el/cves/CVE-2026-74736"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-74736"}}