CVE-2026-23149 drm: Do not allow userspace to trigger kernel warnings in drm_gem_change_handle_ioctl()

In the Linux kernel, the following vulnerability has been resolved: drm: Do not allow userspace to trigger kernel warnings in drmgemchangehandleioctl Since GEM bo handles are u32 in the uapi and the internal implementation uses idralloc which uses int ranges, passing a new handle larger than INTM...

CVE-2026-23149

Summary: CVE-2026-23149 affects the Linux kernel DRM subsystem, specifically drm_gem_change_handle_ioctl(). The vulnerability arises because GEM buffer object handles are u32 in the user API while internal idr_alloc() uses int ranges, causing a kernel warning (WARN_ON_ONCE) when a handle larger t...

CVE-2026-23149

In the Linux kernel, the following vulnerability has been resolved: drm: Do not allow userspace to trigger kernel warnings in drmgemchangehandleioctl Since GEM bo handles are u32 in the uapi and the internal implementation uses idralloc which uses int ranges, passing a new handle larger than INTM...