CVE-2026-89978

CVE-2026-89978 affects the Linux kernel accel/amdxdna driver (AMD NPU). The SYNC_BO ioctl does not validate that the requested size is non-zero, so a zero-byte request reaches drm_clflush_virt_range(), which unconditionally calls clflushopt(end - 1). For an empty range this dereferences the guard...

EUVD-2026-80578

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: return early from a zero-length flush SYNCBO does not constrain its size, so a request for zero bytes reaches drmclflushvirtrange, which ends with an unconditional clflushoptend - 1. For an empty range that is the...