user/sven/linux.git/crypto/algapi.c, branch v5.4.68

crypto: algapi - Avoid spurious modprobe on LOADED

2020-06-17T14:40:30Z

commit beeb460cd12ac9b91640b484b6a52dcba9d9fc8f upstream. Currently after any algorithm is registered and tested, there's an unnecessary request_module("cryptomgr") even if it's already loaded. Also, CRYPTO_MSG_ALG_LOADED is sent twice, and thus if the algorithm is "crct10dif", lib/crc-t10dif.c replaces the tfm twice rather than once. This occurs because CRYPTO_MSG_ALG_LOADED is sent using crypto_probing_notify(), which tries to load "cryptomgr" if the notification is not handled (NOTIFY_DONE). This doesn't make sense because "cryptomgr" doesn't handle this notification. Fix this by using crypto_notify() instead of crypto_probing_notify(). Fixes: dd8b083f9a5e ("crypto: api - Introduce notifier for new crypto algorithms") Cc: # v4.20+ Cc: Martin K. Petersen Signed-off-by: Eric Biggers Reviewed-by: Martin K. Petersen Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman

crypto: api - Fix race condition in crypto_spawn_alg

2020-02-11T12:35:31Z

commit 73669cc556462f4e50376538d77ee312142e8a8a upstream. The function crypto_spawn_alg is racy because it drops the lock before shooting the dying algorithm. The algorithm could disappear altogether before we shoot it. This patch fixes it by moving the shooting into the locked section. Fixes: 6bfd48096ff8 ("[CRYPTO] api: Added spawns") Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman

crypto: api - fix unexpectedly getting generic implementation

2020-02-11T12:35:30Z

commit 2bbb3375d967155bccc86a5887d4a6e29c56b683 upstream. When CONFIG_CRYPTO_MANAGER_EXTRA_TESTS=y, the first lookup of an algorithm that needs to be instantiated using a template will always get the generic implementation, even when an accelerated one is available. This happens because the extra self-tests for the accelerated implementation allocate the generic implementation for comparison purposes, and then crypto_alg_tested() for the generic implementation "fulfills" the original request (i.e. sets crypto_larval::adult). This patch fixes this by only fulfilling the original request if we are currently the best outstanding larval as judged by the priority. If we're not the best then we will ask all waiters on that larval request to retry the lookup. Note that this patch introduces a behaviour change when the module providing the new algorithm is unregistered during the process. Previously we would have failed with ENOENT, after the patch we will instead redo the lookup. Fixes: 9a8a6b3f0950 ("crypto: testmgr - fuzz hashes against...") Fixes: d435e10e67be ("crypto: testmgr - fuzz skciphers against...") Fixes: 40153b10d91c ("crypto: testmgr - fuzz AEADs against...") Reported-by: Eric Biggers Signed-off-by: Herbert Xu Reviewed-by: Eric Biggers Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman

crypto: api - Check spawn->alg under lock in crypto_drop_spawn

2020-02-11T12:35:22Z

commit 7db3b61b6bba4310f454588c2ca6faf2958ad79f upstream. We need to check whether spawn->alg is NULL under lock as otherwise the algorithm could be removed from under us after we have checked it and found it to be non-NULL. This could cause us to remove the spawn from a non-existent list. Fixes: 7ede5a5ba55a ("crypto: api - Fix crypto_drop_spawn crash...") Cc: Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman

Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2019-07-09T03:57:08Z

Pull crypto updates from Herbert Xu: "Here is the crypto update for 5.3: API: - Test shash interface directly in testmgr - cra_driver_name is now mandatory Algorithms: - Replace arc4 crypto_cipher with library helper - Implement 5 way interleave for ECB, CBC and CTR on arm64 - Add xxhash - Add continuous self-test on noise source to drbg - Update jitter RNG Drivers: - Add support for SHA204A random number generator - Add support for 7211 in iproc-rng200 - Fix fuzz test failures in inside-secure - Fix fuzz test failures in talitos - Fix fuzz test failures in qat" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (143 commits) crypto: stm32/hash - remove interruptible condition for dma crypto: stm32/hash - Fix hmac issue more than 256 bytes crypto: stm32/crc32 - rename driver file crypto: amcc - remove memset after dma_alloc_coherent crypto: ccp - Switch to SPDX license identifiers crypto: ccp - Validate the the error value used to index error messages crypto: doc - Fix formatting of new crypto engine content crypto: doc - Add parameter documentation crypto: arm64/aes-ce - implement 5 way interleave for ECB, CBC and CTR crypto: arm64/aes-ce - add 5 way interleave routines crypto: talitos - drop icv_ool crypto: talitos - fix hash on SEC1. crypto: talitos - move struct talitos_edesc into talitos.h lib/scatterlist: Fix mapping iterator when sg->offset is greater than PAGE_SIZE crypto/NX: Set receive window credits to max number of CRBs in RxFIFO crypto: asymmetric_keys - select CRYPTO_HASH where needed crypto: serpent - mark __serpent_setkey_sbox noinline crypto: testmgr - dynamically allocate crypto_shash crypto: testmgr - dynamically allocate testvec_config crypto: talitos - eliminate unneeded 'done' functions at build time ...

crypto: algapi - require cra_name and cra_driver_name

2019-06-13T06:31:40Z

Now that all algorithms explicitly set cra_driver_name, make it required for algorithm registration and remove the code that generated a default cra_driver_name. Also add an explicit check that cra_name is set too, since that's obviously required too, yet it didn't seem to be checked anywhere. Signed-off-by: Eric Biggers Signed-off-by: Herbert Xu

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30T18:26:32Z

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman

crypto: algapi - remove crypto_tfm_in_queue()

2019-05-30T07:28:41Z

Remove the crypto_tfm_in_queue() function, which is unused. Signed-off-by: Eric Biggers Signed-off-by: Herbert Xu

crypto: api - add a helper to (un)register a array of templates

2019-01-25T10:41:52Z

This patch add a helper to (un)register a array of templates. The following patches will use this helper to simplify the code. Signed-off-by: Xiongfeng Wang Reviewed-by: Eric Biggers Signed-off-by: Herbert Xu

crypto: algapi - reject NULL crypto_spawn::inst

2019-01-11T06:16:58Z

It took me a while to notice the bug where the adiantum template left crypto_spawn::inst == NULL, because this only caused problems in certain cases where algorithms are dynamically loaded/unloaded. More improvements are needed, but for now make crypto_init_spawn() reject this case and WARN(), so this type of bug will be noticed immediately in the future. Note: I checked all callers and the adiantum template was the only place that had this wrong. So this WARN shouldn't trigger anymore. Signed-off-by: Eric Biggers Signed-off-by: Herbert Xu