{"id":"CVE-2026-53169","state":"PUBLISHED","title":"accel/ethosu: reject NPU_OP_RESIZE commands from userspace","description":"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.","publishedAt":"2026-06-25T08:38:48.068Z","updatedAt":"2026-06-25T08:38:48.068Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b","status":"affected","lessThan":"70090a32f56a4589e7e860e0f9a8fbe4417df0a1","versionType":"git"},{"version":"5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b","status":"affected","lessThan":"ef911805d86a05363d3ec2fa9835a41def83bb7e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/accel/ethosu/ethosu_gem.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.19","versionType":"semver"},{"version":"7.0.13","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/accel/ethosu/ethosu_gem.c"]}],"references":["https://git.kernel.org/stable/c/70090a32f56a4589e7e860e0f9a8fbe4417df0a1","https://git.kernel.org/stable/c/ef911805d86a05363d3ec2fa9835a41def83bb7e"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/53xxx/CVE-2026-53169.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53169","state":"PUBLISHED","datePublished":"2026-06-25T08:38:48.068Z","dateUpdated":"2026-06-25T08:38:48.068Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-06-09T07:44:35.389Z"},"containers":{"cna":{"title":"accel/ethosu: reject NPU_OP_RESIZE commands from userspace","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b","status":"affected","lessThan":"70090a32f56a4589e7e860e0f9a8fbe4417df0a1","versionType":"git"},{"version":"5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b","status":"affected","lessThan":"ef911805d86a05363d3ec2fa9835a41def83bb7e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/accel/ethosu/ethosu_gem.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.19","versionType":"semver"},{"version":"7.0.13","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/accel/ethosu/ethosu_gem.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/70090a32f56a4589e7e860e0f9a8fbe4417df0a1"},{"url":"https://git.kernel.org/stable/c/ef911805d86a05363d3ec2fa9835a41def83bb7e"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-06-25T08:38:48.068Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.0.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}