Hi Herbert, please find attached memory management updates to
- simplify the code: the old AIO memory management is very complex and seemingly very fragile -- the update now eliminates all reported bugs in the skcipher and AEAD interfaces which allowed the kernel to be crashed by an unprivileged user - streamline the code: there is one code path for AIO and sync operation; the code between algif_skcipher and algif_aead is very similar (if that patch set is accepted, I volunteer to reduce code duplication by moving service operations into af_alg.c and to further unify the TX SGL handling) - unify the AIO and sync operation which only differ in the kernel crypto API callback and whether to wait for the crypto operation or not - fix all reported bugs regarding the handling of multiple IOCBs. The following testing was performed: - stress testing to verify that no memleaks exist - testing using Tadeusz Struck AIO test tool (see https://github.com/tstruk/afalg_async_test) -- the AEAD test is not applicable any more due to the changed user space interface; the skcipher test works once the user space interface change is honored in the test code - using the libkcapi test suite, all tests including the originally failing ones (AIO with multiple IOCBs) work now -- the current libkcapi code artificially limits the AEAD operation to one IOCB. After altering the libkcapi code to allow multiple IOCBs, the testing works flawless. Stephan Mueller (2): crypto: aead AF_ALG - overhaul memory management crypto: skcipher AF_ALG - overhaul memory management crypto/algif_aead.c | 439 ++++++++++++++++++++ +--------------------------- crypto/algif_skcipher.c | 438 +++++++++++++++++++---------------------------- 2 files changed, 369 insertions(+), 508 deletions(-) -- 2.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
