On Sat, Aug 28, 2021 at 11:16:47AM +0800, yekai(A) wrote: > > I refered to other people's plans. Modify the value of halg.statesize > is sizeof(struct sec_req) + sizeof(u32), So user can allocate an extra > sizeof(u32) memory. The driver will write a tag number to the addr in the > export process, then the driver will check the pointers by the tag number > through the import path. > I think this plan can avoid random pointers. I don't see what that's going to achieve. The whole point of export/import is to serialise the entire hash state. You can not store any pointers in there. After all, I can export the hash state, reboot, and then reimport the hash state and it should still work. Cheers, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
