On Wed, Nov 09, 2022 at 10:16:58PM +0900, Taehee Yoo wrote: . > I have encountered kernel panic(stack-out-of-bounds) while using the reqctx > instead of the tfm. > > cryptd is used when simd drivers are used. > cryptd_skcipher_encrypt() internally doesn't allocate a request ctx of a > child, instead, it uses stack memory with SYNC_SKCIPHER_REQUEST_ON_STACK. > It retains only 384 bytes for child request ctx even if a child set a large > reqsize value with crypto_skcipher_set_reqsize(). > aria-avx2 needs 512 bytes and aria-avx512 needs 1024 bytes. > So, stack-out-of-bounds occurs. That's not good. Let me look into this. Thanks, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
