Some background information in case anyone else is wondering Initial short problem description and consideration in crypto API and GFP_ATOMIC https://listman.redhat.com/archives/dm-devel/2020-June/041316.html Led to solution crypto: introduce CRYPTO_ALG_ALLOCATES_MEMORY https://listman.redhat.com/archives/dm-devel/2020-June/041341.html fbb6cda44190 crypto: algapi - introduce theby someguys561235 - Debian