CVE-2026-89446

CVE-2026-89446 affects the Linux kernel iommufd subsystem. The root cause is in the error-handling path of iommufd_take_all_iova_rwsem(): when xa_store() fails to insert the current IOAS into the ioas_list xarray, the subsequent call to iommufd_release_all_iova_rwsem() only unwinds entries alread...