It turns out that the fallback path for synchronous algorithms is broken for ahash and acomp. It was difficult to identify because a separate fast path already is normally used for shash and scomp. So to reproduce this crash, you would either have to create a new algorithm that is synchronous, or disable the fast path for scomp and shash. This patch series fixes that particular fallback path and adds multibuffer testing for ahash and acomp. Note that you may not be able to reproduce the crash without disabling the fast paths or adding your own custom synchronous acomp/ahash algorithm that does not support chaining. Herbert Xu (4): crypto: hash - Fix synchronous ahash chaining fallback crypto: testmgr - Add multibuffer hash testing crypto: acomp - Fix synchronous acomp chaining fallback crypto: testmgr - Add multibuffer acomp testing crypto/acompress.c | 33 ++--- crypto/ahash.c | 60 +++++---- crypto/testmgr.c | 302 ++++++++++++++++++++++++++++++++------------- 3 files changed, 254 insertions(+), 141 deletions(-) -- 2.39.5
