On Tue, Jan 22, 2019 at 04:26:51PM +0100, Roland Hieber wrote: > > The cause is that the struct ahash_request *req is created as a > stack-local variable up in the stack (presumably somewhere in the IMA > implementation), then passed down into the CAAM driver, which tries to > dma_single_map the req->result (indirectly via map_seq_out_ptr_result) > in order to make that buffer available for the CAAM to store the result > of the following hash operation. Then IMA needs to be fixed. Asynchronous crypto requests must be allocated with kmalloc so this is an API violation. Cheers, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
