{"id":"CVE-2026-53169","summary":"accel/ethosu: reject NPU_OP_RESIZE commands from userspace","details":"In the Linux kernel, the following vulnerability has been resolved:\n\naccel/ethosu: reject NPU_OP_RESIZE commands from userspace\n\nNPU_OP_RESIZE is a U85-only command that the driver does not yet\nimplement. The existing WARN_ON(1) placeholder fires unconditionally\nwhenever userspace submits this command via DRM_IOCTL_ETHOSU_GEM_CREATE,\ncausing unbounded kernel log spam.\n\nIf panic_on_warn is set the kernel panics, giving any unprivileged user\nwith access to the DRM device a trivial denial-of-service primitive.\n\nReplace the WARN_ON(1) with an explicit -EINVAL return so the ioctl\nrejects the command before it reaches hardware.","modified":"2026-07-08T08:07:23.539822125Z","published":"2026-06-25T08:38:48.068Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53169.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/70090a32f56a4589e7e860e0f9a8fbe4417df0a1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ef911805d86a05363d3ec2fa9835a41def83bb7e"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53169.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53169"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b"},{"fixed":"70090a32f56a4589e7e860e0f9a8fbe4417df0a1"},{"fixed":"ef911805d86a05363d3ec2fa9835a41def83bb7e"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53169.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.13"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53169.json"}}],"schema_version":"1.7.5"}